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Re: Pit Bike

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Originally Posted by CAM2 View Post



Get a 15mm WYK192 pumper carb setup from ebay for $20-25.00....

Heres a link

https://www.ebay.com/itm/Racing-Carb...sAAOSw0yVcZF~y

Youre also gonna need a pumper carb fuelline kit for it too.....


https://www.ebay.com/itm/49cc-49cc-3...MAAOSwrklVHGPv

Seeings it says the bike is EPA aswell as California Compliant so that means the thing is riddled with restrictors..You already know the carb is one. Another will be a restriction inside the expansion chamber for the exhaust....

The engines they put on them are tool based engines fitted on Augers,trashpumps and brushcutters..Theyre roughly 2hp too...







Good Luck and welcome to the forum......

wow thank you for the reply. A few hours ago (before your post) I did some research and ordered this carb, did I do alright?


https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1


The only other part I ordered was this:


https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1


Because among all the other issues Ive had with the bike, the pull starter snapped and has no return tension when I pull the starter. Hopefully I ordered the right parts to start in the right direction with this bike. My 6 year old son has been pretty bummed since yesterday since his Christmas present barely runs
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Did you use premium ethanol free fuel and a non synthetic two stroke oil mixed at 35:1 for break in.

check the fuel line and make sure the factory put a fuel filter on there if you don't have a fuel filter it may have sucked in some plastic out of the new gas tank.

Check the fuel shut off petcock on the carburetor make sure that the shut off is pointing up and down

here is how to clean the stock carby
https://youtu.be/QhjyvTg8seU

your wasteing your time with that carb you got off Amazon just send it back unopend and get your money back its just going to come loose and make an air leak and cause engine damage or the casting will just crack and it will fall off they are junk I don't care what anybody says I've never seen members have any good luck with those carbys and I've had the same experience as everybody else without the jet kit and slide kits you can't even tune the carburetor and just when you get at working and kind of okay it will crack and fall off...

Keep in mind that pitbike that you have is using pocket bike technology they are about 80% working on and 20% play so plan on lots of father son time out in the shop...

check every bolt and locktight blue is your friend before rideing

Faster then a speeding E Revo

Last edited by MrKitty; 12-27-2019 at 03:04 AM.
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Re: Pit Bike

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Originally Posted by BlackReef View Post
wow thank you for the reply. A few hours ago (before your post) I did some research and ordered this carb, did I do alright?


https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1


The only other part I ordered was this:


https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1


Because among all the other issues Ive had with the bike, the pull starter snapped and has no return tension when I pull the starter. Hopefully I ordered the right parts to start in the right direction with this bike. My 6 year old son has been pretty bummed since yesterday since his Christmas present barely runs
I pretty much say;-When it seems too good to be true its usually made in china....LOL

Its a typical china made toy assembled by Chinese kids in China....I hate to say it but your son is gonna get bummed out an aweful lot and if it doesn't let it defeat him or you-you guys can turn it into a neat father and son project too...This hobby is like R/C cars...20% fun 80% wrenching until you work out all the bugs by modifying and replacing parts then it will be time for a new topend kit or total rebuild.....

Atleast back in the day with the r/c stuff you had the option of building yours yourself which gets you familiar quick with the product..

I hate to also say it but that 14/14 del rep carb you bought isn't any better as they always loosen up and crack easily when overtightened.....I guess you've been living mainly in the fuel injection era your whole life where you get used to a computer adjusting fuel trim and ignition timing over doing any manual type adjusting...



That Del replica carb will require a $15-20 main jet assortment pack and you will need to find the best jet to put into the carb to get your engine tuned and the jets DONT come labeled so its a game of guess the size by eye or buy a $15-20.00 gauge pin / drill set to judge the sizes by and the ambient temps aswell as demographic area dictates that choice mainly so what works for me here in NY on the fish shaped surfboard known as Long Island wont work for you if your area is of different temps,pressures and altitudes so you will need to start a maintainance /tuning journal for it too..

This again is the carb you need and I highly recommend to almost all who ask about carbs for these small engines and the ones who listen are pretty satisfied with the results.......

https://www.amazon.com/dp/B0753GVYC3...NsaWNrPXRydWU=

fuelline kit

https://www.amazon.com/Zooma-G-Scoot...9DA6Y955MHD4X3


As the seasons change and the engine wears down so will the tune change....A pumper carb setup is the best and easiest way to keep the emgine in the sweetspot by simply adjusting a few screws...No draining the tank or carb removal and huge gasoline smells also its the closest to fuel injection as there is as the carb spurts fuel into the venturi by a pumper diaphragm via fluxuating case pressure instead of being suck-siphoned out by weak azz engine velocity.....

As far as the pullstarter you need to remove the old one and see which one you have...There are currently 4 different type pullstarters for those engines...It sounds like you may have the EZ-start version and if so the pullstarter you show will also require a new flywheel...

As far as the stock carb...The Chinese rubber inside the petcock aswell as the fuellines are very ethanol sensitive and swells up slowing flow through the fuellines and the petcock.....




The cheap chinse Torch or LM brand sparkplug sux and needs to be replaced too...NGK BM6A / NGK BM7A gapped to .030"sae

Make sure your coil is tight and gapped to .020" too....

I hope you mixed the break-in fuel with non-synthetic 2 stroke mix and you also let the bike sit and heat cycle without a load for 5-10 minutes before riding and refrained the lil guy from trying to go fast on it off the bat as these engines require a gentle type 4 tankful break-in and if not adhered to will turn the cheap chinese piston rings rubbery and compression wont hold as strong yielding less than favorable results in running capacity, reliability, overall power and engine longevity..

Like I stated these engines are used for tool use...Add the weight of a rider and the stresses exponentiate...

One thing you don't want is a new engine looking like this one too early as this engine has like 1/2 hour on it...It got destroyed pretty quickly by its old owner........LOL



Good Luck

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Last edited by CAM2; 12-27-2019 at 10:17 AM.
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Re: Pit Bike

Quote:
Originally Posted by MrKitty View Post
Did you use premium ethanol free fuel and a non synthetic two stroke oil mixed at 35:1 for break in.

check the fuel line and make sure the factory put a fuel filter on there if you don't have a fuel filter it may have sucked in some plastic out of the new gas tank.

Check the fuel shut off petcock on the carburetor make sure that the shut off is pointing up and down

here is how to clean the stock carby
https://youtu.be/QhjyvTg8seU

your wasteing your time with that carb you got off Amazon just send it back unopend and get your money back its just going to come loose and make an air leak and cause engine damage or the casting will just crack and it will fall off they are junk I don't care what anybody says I've never seen members have any good luck with those carbys and I've had the same experience as everybody else without the jet kit and slide kits you can't even tune the carburetor and just when you get at working and kind of okay it will crack and fall off...

Keep in mind that pitbike that you have is using pocket bike technology they are about 80% working on and 20% play so plan on lots of father son time out in the shop...

check every bolt and locktight blue is your friend before rideing

To be honest, defintely did not do a proper break in. I just mixed up some 87 octane with 2-stroke oil to 25:1 and poured it in the tank. Well the carb is relatively cheap and it's already on the way so I guess Ill just return it when it gets in from Amazon.



The platform I bought: DR-X 50cc - is it a platform worth building on? In other words, is it worth it to put some money into the motor (big bore?), etc or am I better off just getting a better brand for my son? I like to tinker with stuff but I dont want to get in over my head if its not the right chassis to build off of. Thanks
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Re: Pit Bike

Quote:
Originally Posted by CAM2 View Post
I pretty much say;-When it seems too good to be true its usually made in china....LOL

Its a typical china made toy assembled by Chinese kids in China....I hate to say it but your son is gonna get bummed out an aweful lot and if it doesn't let it defeat him or you-you guys can turn it into a neat father and son project too...This hobby is like R/C cars...20% fun 80% wrenching until you work out all the bugs by modifying and replacing parts then it will be time for a new topend kit or total rebuild.....

Atleast back in the day with the r/c stuff you had the option of building yours yourself which gets you familiar quick with the product..

I hate to also say it but that 14/14 del rep carb you bought isn't any better as they always loosen up and crack easily when overtightened.....I guess you've been living mainly in the fuel injection era your whole life where you get used to a computer adjusting fuel trim and ignition timing over doing any manual type adjusting...



That Del replica carb will require a $15-20 main jet assortment pack and you will need to find the best jet to put into the carb to get your engine tuned and the jets DONT come labeled so its a game of guess the size by eye or buy a $15-20.00 gauge pin / drill set to judge the sizes by and the ambient temps aswell as demographic area dictates that choice mainly so what works for me here in NY on the fish shaped surfboard known as Long Island wont work for you if your area is of different temps,pressures and altitudes so you will need to start a maintainance /tuning journal for it too..

This again is the carb you need and I highly recommend to almost all who ask about carbs for these small engines and the ones who listen are pretty satisfied with the results.......

https://www.amazon.com/dp/B0753GVYC3...NsaWNrPXRydWU=

fuelline kit

https://www.amazon.com/Zooma-G-Scoot...9DA6Y955MHD4X3


As the seasons change and the engine wears down so will the tune change....A pumper carb setup is the best and easiest way to keep the emgine in the sweetspot by simply adjusting a few screws...No draining the tank or carb removal and huge gasoline smells also its the closest to fuel injection as there is as the carb spurts fuel into the venturi by a pumper diaphragm via fluxuating case pressure instead of being suck-siphoned out by weak azz engine velocity.....

As far as the pullstarter you need to remove the old one and see which one you have...There are currently 4 different type pullstarters for those engines...It sounds like you may have the EZ-start version and if so the pullstarter you show will also require a new flywheel...

As far as the stock carb...The Chinese rubber inside the petcock aswell as the fuellines are very ethanol sensitive and swells up slowing flow through the fuellines and the petcock.....




The cheap chinse Torch or LM brand sparkplug sux and needs to be replaced too...NGK BM6A / NGK BM7A gapped to .030"sae

Make sure your coil is tight and gapped to .020" too....

I hope you mixed the break-in fuel with non-synthetic 2 stroke mix and you also let the bike sit and heat cycle without a load for 5-10 minutes before riding and refrained the lil guy from trying to go fast on it off the bat as these engines require a gentle type 4 tankful break-in and if not adhered to will turn the cheap chinese piston rings rubbery and compression wont hold as strong yielding less than favorable results in running capacity, reliability, overall power and engine longevity..

Like I stated these engines are used for tool use...Add the weight of a rider and the stresses exponentiate...

One thing you don't want is a new engine looking like this one too early as this engine has like 1/2 hour on it...It got destroyed pretty quickly by its old owner........LOL



Good Luck

Wow, there is a ton of good information here, thank you. I wish I would have discovered this forum a few days before Christmas, when I first got the bike and started having issues. So I am going to order the carb and fuel lines you recommended. I also ordered the NGK BM6A and it will be here Sunday. As far as the pull start, Im not sure - the flywheel is attached to the motor obviously and when I take the pull start assembly off it is all one piece. Ive attached pics below for reference. Hopefully the pull start I ordered will work. It IS suspiciously cheap.



I dont mind putting a few bucks into this bike if it means it will be solid and reliable. Would you say these bikes are worth building up, or am I better off starting with a different platform? I love 2-strokes and messing with them, but I will say my carb experience is limited. I did grow up riding a 95 KX125 and a 97 KX250, both 2-strokes - but its been a while. Id imagine buying a new big bore motor or something like that for this bike would be ALOT of fun but again Im not sure if this is the right bike to make a project out of. Thoughts? And thanks again for the help
Attached Images
File Type: jpg 20191227_111029.jpg (566.7 KB, 7 views)
File Type: jpg 20191227_111058.jpg (585.1 KB, 6 views)
File Type: jpg 20191227_111037.jpg (551.6 KB, 6 views)
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you have the EZ pull starter the starter you orderd is not going to work you need this one

https://www.ebay.com/itm/Alloy-Pull-...UAAOSwbqpT3XvZ

they can be made somewhat reliable but as a general rull never ride one farther then your willing to walk or tow (keep tools on you to remove the chain incase the transmishon locks up)they make good pit bikes or around the home/farm they are completely worthless for rideing in the woods...

there is no big boar kit for that engine it has the 44mm piston already

its a weed wacker engine with a very low part count just about every part can be modified with a dremmal tool no need to fall victim to the hop up parts scam.
Attached Images
File Type: jpg 20180318_155631_1577471055402.jpg (469.9 KB, 3 views)
File Type: jpg 20180329_193142_1577471801871.jpg (233.4 KB, 4 views)
File Type: jpg 20180409_164037_1577471851714.jpg (252.8 KB, 4 views)

Faster then a speeding E Revo

Last edited by MrKitty; 12-27-2019 at 01:43 PM.
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Re: Pit Bike

Dude, never order anything with out asking here first, its so easy to order the wrong stuff. Might as well use the 14/14 Dell carb, and with that alum intake you can put a brass barb fitting on the bottom to add a boost bottle. That's the same starter set up on billet alum cased, The Beast Engine. CAM2 fixed all the problems and did so much modifing & blueprinting its hard to list them all, lol. Can't believe you bought a plastic starter housing either, lol. MrKitty has shown you the right one. The newer ones are easier to pull than the old ones, cause they have more leverage. Going to cost more than you paid to send that stuff back. This starter add on is for the old style flywheel.
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File Type: jpg 40mm 47cc Cag Billet Eng2.jpg (291.2 KB, 4 views)
File Type: jpg Billet Case Intake Area.jpg (281.9 KB, 5 views)
File Type: jpg New Style Cag Alum Starter Housing3.jpg (179.9 KB, 5 views)

Empty Pockets Racing: The difficult we do, the impossible takes longer.....
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Re: Pit Bike

Quote:
Originally Posted by BlackReef View Post
Wow, there is a ton of good information here, thank you. I wish I would have discovered this forum a few days before Christmas, when I first got the bike and started having issues. So I am going to order the carb and fuel lines you recommended. I also ordered the NGK BM6A and it will be here Sunday. As far as the pull start, Im not sure - the flywheel is attached to the motor obviously and when I take the pull start assembly off it is all one piece. Ive attached pics below for reference. Hopefully the pull start I ordered will work. It IS suspiciously cheap.



I dont mind putting a few bucks into this bike if it means it will be solid and reliable. Would you say these bikes are worth building up, or am I better off starting with a different platform? I love 2-strokes and messing with them, but I will say my carb experience is limited. I did grow up riding a 95 KX125 and a 97 KX250, both 2-strokes - but its been a while. Id imagine buying a new big bore motor or something like that for this bike would be ALOT of fun but again Im not sure if this is the right bike to make a project out of. Thoughts? And thanks again for the help
Like I feared through your description of the current pullstarter state and confirmation through pictures provided you indeed have the crappiest pullstarter the EZ-Starter Pullstarter...The one you referenced is one of the better ones so Id get the right flywheel to go with that better pullstarter and also get a rocket key to advance the timing....

Heres the flywheel id buy for it...

https://www.amazon.com/TC-Motor-Reco...omotive&sr=1-7

Heres the rocket key

https://www.amazon.com/ScooterX-Timi...omotive&sr=1-2

Very awesome you have atleast introductory experience...better if you've ever had to rejet any of the carbs ..

That bike is indeed a worthy canvas to use as a project to gain overall experience...I always say if you can iron out and make a crappy chnese bike 80% reliable you've gained a huge victory and Ive done it many many times.......LOL

Those ready built hp engines are a crapshoot and need to be totally disassembled and modified to work as really intended to work..

Id say depending on how your son feels about the process n such is how you should play it as some are initially just in it for the fun factor because they spend their entire week in school learning....

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Last edited by CAM2; 12-27-2019 at 07:11 PM.
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Re: Pit Bike

Quote:
Originally Posted by MrKitty View Post
you have the EZ pull starter the starter you orderd is not going to work you need this one

https://www.ebay.com/itm/Alloy-Pull-...UAAOSwbqpT3XvZ

they can be made somewhat reliable but as a general rull never ride one farther then your willing to walk or tow (keep tools on you to remove the chain incase the transmishon locks up)they make good pit bikes or around the home/farm they are completely worthless for rideing in the woods...

there is no big boar kit for that engine it has the 44mm piston already

its a weed wacker engine with a very low part count just about every part can be modified with a dremmal tool no need to fall victim to the hop up parts scam.
Quote:
Originally Posted by EPR View Post
Dude, never order anything with out asking here first, its so easy to order the wrong stuff. Might as well use the 14/14 Dell carb, and with that alum intake you can put a brass barb fitting on the bottom to add a boost bottle. That's the same starter set up on billet alum cased, The Beast Engine. CAM2 fixed all the problems and did so much modifing & blueprinting its hard to list them all, lol. Can't believe you bought a plastic starter housing either, lol. MrKitty has shown you the right one. The newer ones are easier to pull than the old ones, cause they have more leverage. Going to cost more than you paid to send that stuff back. This starter add on is for the old style flywheel.
Quote:
Originally Posted by CAM2 View Post
Like I feared through your description of the current pullstarter state and confirmation through pictures provided you indeed have the crappiest pullstarter the EZ-Starter Pullstarter...The one you referenced is one of the better ones so Id get the right flywheel to go with that better pullstarter and also get a rocket key to advance the timing...….

Heres the flywheel id buy for it...

https://www.amazon.com/TC-Motor-Reco...omotive&sr=1-7

Heres the rocket key

https://www.amazon.com/ScooterX-Timi...omotive&sr=1-2

Very awesome you have atleast introductory experience...better if you've ever had to rejet any of the carbs …..

That bike is indeed a worthy canvas to use as a project to gain overall experience...I always say if you can iron out and make a crappy chnese bike 80% reliable you've gained a huge victory and Ive done it many many times.......LOL

Those ready built hp engines are a crapshoot and need to be totally disassembled and modified to work as really intended to work..

Id say depending on how your son feels about the process n such is how you should play it as some are initially just in it for the fun factor because they spend their entire week in school learning....

Ok thanks guys.



So as far as I am tracking, I need to either run the carb I already ordered:
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1 ) for now....


Or I need to purchase the better carb which is located here:
https://www.amazon.com/Mx-M-Carburet...omotive&sr=1-1


And also, I need to purchase the fuel line kit:
https://www.amazon.com/Zooma-G-Scoot...keplanetcon-20


And the pull starter I ordered is not going to work and I need to return it. The proper pull starter I need to purchase is located here:
https://www.ebay.com/itm/Alloy-Pull-...UAAOSwbqpT3XvZ (is a good pull starter available on Amazon instead of ebay?)


And I also need to purchase this flywheel:
https://www.amazon.com/TC-Motor-Reco...keplanetcon-20


And this rocket key:
https://www.amazon.com/ScooterX-Timi...keplanetcon-20


So I get these parts and I should be good to go? Id like to see if I can find that alloy pull starter on Amazon instead of Ebay. Cant beat the easy returns on Amazon LOL.


So Carb, Flywheel, Pull Starter, Rocket Key and Fuel Line Kit. I wonder if we'll notice a power bump with these parts? Thanks again. Let me know if I am missing anything here. Im in the Army and it sucks that these parts wont be in by the time I get off of leave, but I guess me and the kiddo will make it a weekend project.

Last edited by BlackReef; 12-27-2019 at 10:30 PM.
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that lightend flywheel is not a hop up its a down grade

20180409_164037_1577501142426.jpg BAMM!

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Last edited by MrKitty; 12-27-2019 at 09:46 PM.
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Re: Pit Bike

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that lightend flywheel is not a hop up its a down grade

Attachment 150809 BAMM!
Pretty nice but you fotgot to mention how long it took you to do that modification and the tools you used.....Im sure when it comes to dollars n cents versus time and possible injury he will choose either an untouched bone stock one or the one I posted....LOL

For bone stock engine and a 6yr old that lightened 8fin HP flywheel is good at keeping the throttle nice n crispy...That keeps the bike more fun and interesting than predictable and boring....

Also to mention that a lighter flywheel with lighter fin drag yields higher revs too.....Especially more so when running alky....

This flywheel already started out as a much lighter flywheel than yours being built with 16 fins instead of the 18fin yours came with.......



Ive utilized the 12fin design on my engines too as sometimes with certain gearing out of the norm a slightly heavier flywheel with a lil more air flow is needed as load and stresses increase...

Kaboom....LOL

Im sure you remember these pics I took back of the mods when I did them back in like 2010/2011.....LOL




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Last edited by CAM2; 12-27-2019 at 10:41 PM.
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Re: Pit Bike

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Pretty nice but you fotgot to mention how long it took you to do that modification and the tools you used.....Im sure when it comes to dollars n cents versus time and possible injury he will choose either an untouched bone stock one or the one I posted....LOL

For bone stock engine and a 6yr old that lightened 8fin HP flywheel is good at keeping the throttle nice n crispy...That keeps the bike more fun and interesting than predictable and boring....

Also to mention that a lighter flywheel with lighter fin drag yields higher revs too.....Especially more so when running alky....

This flywheel already started out as a much lighter flywheel than yours being built with 16 fins instead of the 18fin yours came with.......


Interesting stuff about the flywheel. Ill go ahead and order the one that was suggested. Is my to-buy list sitting pretty good? I appreciate your help man
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Re: Pit Bike

For your list..ditch the Del rep carb and go with the pumper carb with fuelline kit..

This engines got the more expensive HP pumper carb kit..





Out of the box that del rep carb will not even run on your engine....The mainjet inside is jetted for basically anyones guess unless you can size it up and it miraculously works...You will also need a $20 mainjet assortment pack to properly jet it or youll kill the new pullstarter or even your arm yanking the bejesus out of it trying to get it to fire up...

They don't give instructions and theres tricks to get them to seal up and work but its really not worth the time to gain the same headaches youre already experiencing.....




Youll be better off modifying the stock carb with JB weld and a 5/32" drillbit and adding an inline fuel filter while awaiting on the pumper carb....

As far as the pullstarter if you go with another E-start pullstarter chances are it will fail again but with the pumper carb it will actually start up a lot quicker n easier too..Kind of like a weedwacker for the lawn....


Most don't run too well because theyre set lean with unadjustable carburetors but they start up relatively quick...I break off the restrictors covering the LSN and HSN and properly adjust my weedeaters,backpack blowers etc...screw the govt...they aint paying for my new topends or paying for the time wasted fiddling with engines or wasting my day yanking pullstarters.......


Id go with the better pullstarter you originally posted and replace the flywheel too and while doing that increase bottomend takeoff by putting in a timing advance key aka Rocket key to advance the timing 10* degrees....

Thanks for your service to our country.....

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Last edited by CAM2; 12-27-2019 at 11:17 PM.
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Re: Pit Bike

Heres the same carb you bought also with the jets I talked about so you can see them...

Theyre the lil round brass pieces....They finetune the fuelflow the engine consumes as it takes the perfect ratio to get optimal results..



The carb you bought doesn't state it coming with an assortment of jets like this carb does...

This is what happens when you overtighten them too..




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Last edited by CAM2; 12-27-2019 at 11:28 PM.
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Re: Pit Bike

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For your list..ditch the Del rep carb and go with the pumper carb with fuelline kit..

This engines got the more expensive HP pumper carb kit..





Out of the box that del rep carb will not even run on your engine....The mainjet inside is jetted for basically anyones guess unless you can size it up and it miraculously works...You will also need a $20 mainjet assortment pack to properly jet it or youll kill the new pullstarter or even your arm yanking the bejesus out of it trying to get it to fire up...

They don't give instructions and theres tricks to get them to seal up and work but its really not worth the time to gain the same headaches youre already experiencing.....




Youll be better off modifying the stock carb with JB weld and a 5/32" drillbit and adding an inline fuel filter while awaiting on the pumper carb....

As far as the pullstarter if you go with another E-start pullstarter chances are it will fail again but with the pumper carb it will actually start up a lot quicker n easier too..Kind of like a weedwacker for the lawn....


Most don't run too well because theyre set lean with unadjustable carburetors but they start up relatively quick...I break off the restrictors covering the LSN and HSN and properly adjust my weedeaters,backpack blowers etc...screw the govt...they aint paying for my new topends or paying for the time wasted fiddling with engines or wasting my day yanking pullstarters.......


Id go with the better pullstarter you originally posted and replace the flywheel too and while doing that increase bottomend takeoff by putting in a timing advance key aka Rocket key to advance the timing 10* degrees....

Thanks for your service to our country.....

Ok cool so this is the carb to get, as referenced earlier:
https://www.amazon.com/dp/B0753GVYC3...keplanetcon-20


Will this carb work out of the box (with the fuel line kit), or will I need to get a jet assortment pack?


Also just to clarify, this is the correct pull start and flywheel I need to get, right? Sorry I get confused on the EZ start terminology.



https://www.ebay.com/itm/Alloy-Pull-...UAAOSwbqpT3XvZ


https://www.amazon.com/dp/B01EJ3NZ2S...keplanetcon-20


And of course the carb I already ordered on Amazon, along with the starter kit (this one: https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1 ) will be going straight back to Amazon once I get them
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Re: Pit Bike

Quote:
Originally Posted by BlackReef View Post
Ok cool so this is the carb to get, as referenced earlier:
https://www.amazon.com/dp/B0753GVYC3...keplanetcon-20


Will this carb work out of the box (with the fuel line kit), or will I need to get a jet assortment pack?


Also just to clarify, this is the correct pull start and flywheel I need to get, right? Sorry I get confused on the EZ start terminology.



https://www.ebay.com/itm/Alloy-Pull-...UAAOSwbqpT3XvZ


https://www.amazon.com/dp/B01EJ3NZ2S...keplanetcon-20


And of course the carb I already ordered on Amazon, along with the starter kit (this one: https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1 ) will be going straight back to Amazon once I get them
The pumper carb has 3 screws you turn to adjust the air/fuel delivery...No extra jets or removing the carb to adjust needed ever..

Theres an idle screw to adjust aswell as a lowspeed/highspeed combo screw plus a fuel rate adjustment screw.....

The way the carb is set should work almost perfectly for you with very lil to no adjusting....

Heres where the Lowspeed needle/ Highspeed combo needle is and the type of screwdriver needed to access it.....



Heres what the LSN/HSN combo screw looks like disassembled and out of the carb.



In my diagram it shows the screw on the side of the carb as the HSN which is also true as when you lean out the fuel rate screw you can also increase topend revs when done right while highspeed tuning the engine...


Cut
Up
Stuff
To
Obtain
Masterpiece



Last edited by CAM2; 12-27-2019 at 11:55 PM.
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Re: Pit Bike

Quote:
Originally Posted by BlackReef View Post
Ok cool so this is the carb to get, as referenced earlier:
https://www.amazon.com/dp/B0753GVYC3...keplanetcon-20


Will this carb work out of the box (with the fuel line kit), or will I need to get a jet assortment pack?


Also just to clarify, this is the correct pull start and flywheel I need to get, right? Sorry I get confused on the EZ start terminology.



https://www.ebay.com/itm/Alloy-Pull-...UAAOSwbqpT3XvZ


https://www.amazon.com/dp/B01EJ3NZ2S...keplanetcon-20


And of course the carb I already ordered on Amazon, along with the starter kit (this one: https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1 ) will be going straight back to Amazon once I get them
For the pullstarter/flywheel question this is the better one but the one shown by you as the one already purchased it will work for the bike without buying another flywheel........

Same seller and you get both for the better setup if you have problems again with the EZ-Starter setup...
https://www.amazon.com/GOOFIT-Recoil...omotive&sr=1-2

The problem with EZ start is it limits the amount of compression it will allow to be cranked over and how many revolutions it will produce per pull over pulling a rope and feeling every stroke directly through the rope as its pulled with no initial pull delay like the EZ pull is designed to do.....

Cut
Up
Stuff
To
Obtain
Masterpiece



Last edited by CAM2; 12-27-2019 at 11:54 PM.
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Re: Pit Bike

I'd like to Thank You for your service too and to wish you and your son many happy days with that little motorcycle.


It's been my experience with small boys and bikes that it's the clutch that will make the biggest difference. I suspect the stock clutch will start to engage fairly early before the motor's spun up which is a good thing. It'll take off kinda slow and give him a chance to get used to it. Once he's gained some confidence you can start modifying the clutch for a later hit. When he finds out he can spin the back tire on a launch he'll think you're a genius.
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Re: Pit Bike

I would just keep the stuff you ordered, if you send them back, postage will eat up all your return money and you will have nothing. I would just try that carb, till you get something else better. Did you order the new type starter housing??
There is this pawl upgrade kit w/ big round steel pawl, works like the piston port starter, for the old stock flywheels, comes with matching starter housing, but you have a new type flywheel.

Empty Pockets Racing: The difficult we do, the impossible takes longer.....

Last edited by EPR; 12-28-2019 at 08:06 PM.
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Join Date: Dec 2019
Posts: 24
Re: Pit Bike

Just checkin here, alot of you have been very helpful. The pull starter came, didn't fit, and so I sent it back to Amazon. The carb came and I just immediately sent it back. I figure I will just do it right the first time and order the right parts. Waiting for my Amazon refund and will go from there. Thanks

I have everything in my cart, ready to go when payday hits!
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Last edited by BlackReef; 12-31-2019 at 02:09 PM.
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