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post #1 of 22 (permalink) Old 1 Week Ago Thread Starter
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New to mini bikes

Hi there,
I'm new to mini bikes and motorcycles in general. I came across a bike at garage sale in my neighborhood and I took a chance with it. I'm pretty sure its an X19 with a FS549-110 model stamped on it and a MFG date of 07/08, if that makes any difference. I was told by the owner it needed a new carb, ignition key (lost) & battery. Overall bike seems to be in fairly good condition but as you've probably gathered by now, it does NOT run yet. I'm hoping to restore it back to a operable condition that I can teach my kids how to ride and introduce them to some basic mechanics. The wiring seems intact but that's not 100% verified yet and most if not all hoses are starting to break if not gone. I plan on replacing the carb, brakes (front to back), ignition key, choke, seat & upgrading the air filter. I do however have a few questions about the bike, first being the air filter. There was a hose that was barely hanging by a 1/2" nipple on the air filter that looked to be 10-12" long. Is that supposed to connect to the crankcase for the crankcase vent (pcv) & can I modify it? Secondly, I'm having a fun time trying to verify what a port on the exhaust is for. It's just above the elbow that comes up from the exhaust port and it had a hose that I believe goes back to the carb, can I modify this as well. I'd like to think of it as a exhaust gas recycler(egr) of some sort, but I'm probably wrong. I'm sure I'll have more questions later.
I've done some pricing for parts on amazon and ebay which seem pretty reasonable, but if there's a special site you guys prefer/ use please inform me some way or another. I'm not looking to turn this thing into beast mode for the sake of my kids and all but some upgrades is fine by me. I imagine that if need to limit the speed for some reason or another that I'd do so by manipulating the throttle cable.
Thank you in advance for the responses,
-Steam
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post #2 of 22 (permalink) Old 1 Week Ago
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Re: New to mini bikes

Welcome to the site.......

First thing you should do is open up a free photobucket account and post pics here........

Youll get it running in very little time when the overall condition is seen first...............

For a quick rundown go to the store and get some

carb cleaner

NGK Sparkplug C7HSA

1/4" fuelline and 1/4" fuel filter

1 qt Castrol 10w/40 motorcycle engine oil....not car oil

The wiring isnt too complicated and I have some quick DIY harnesses you can utilize if your harness is too chopped up...

Good Luck

Last edited by CAM2; 1 Week Ago at 12:33 PM.
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post #3 of 22 (permalink) Old 1 Week Ago Thread Starter
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Re: New to mini bikes

Sorry if these are super massive or don't show up at all...






I'll post the images of the areas I have question about later this evening or tomorrow. Thank you,
-Steam
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post #4 of 22 (permalink) Old 1 Week Ago
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Re: New to mini bikes

Ok so youre dealing with indeed an X19....Its 110cc full auto which is just a twist n go model....

From what I see its been sitting outside and needs to be taken down some and maintainanced..............Being a full auto engine will require a good battery to start it.....

The one in there is definately shot...I just hope the starter is still good and not seized.......I just replaced my battery with an acid filled ATV battery...



Having a good trickle charger helps keep the battery always charged,,,you can add a charging pigtail to the battery for a quick connection...........

If youre mechanically inclined you can get that bike startingup quickly and cruising nice respectable speeds of 40mph..........

Get the basics mentioned before and while you have the carburetor off to clean it out it would be wise to remove the EPA restrictor for regaining back the float height needed tp properly run these engines...



I would get rid of the stock intake snorkle box and make a homemade PVC velocity stack to tap the rear crankcase ventilation tube into....They sell cheap foam filters for them..

They sell whats called a 25 or 26mm 8 position carb adapter that can be used to clock the carb into a side draft position if desired......

Lots just let the hose hang down....I like to drill and tap the upper valvecover cap then TEE it into the rear evac tube then run it high to the carb where it gets semi-powersucked through the carb inlet...

This reduces the parachute effect on the piston aswell as removes trapped heat in the valve area alot quicker..........It also helps the engine spool-up more freely too....

Alot frown on this saying you suck oil into the engine....It hasnt ever happened to me,,,The rear TEE-In drains any oil back to the crankcase way before it ever rises up and travels 20" to the carb.........




Last edited by CAM2; 1 Week Ago at 08:55 PM.
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post #5 of 22 (permalink) Old 1 Week Ago Thread Starter
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Re: New to mini bikes

Thanks CAM2, do you have a write up on that PVC V-stack build? What's the rear evac tube?
I finally stripped her of the "fairings" and drained the engine oil, which I swear had a faint scent of gasoline. Is there anyway that this is possible, to have fuel leak into the engine oil?





What is this port for on the exhaust and where does that hose lead to?




Thank you all again,
-Steam
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post #6 of 22 (permalink) Old 1 Week Ago
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Re: New to mini bikes

Fuel scent in the oil is common especially when the carb overflows and fills the engine up....The gas goes past the rings usually gaswashing a cylinder....

Thats why I said to change the oil....9 out of 10 non-running bikes had oil that smelled like gas....

I dont have a thread and the write-ups are thousands of posts back and dont know where to look but if you give me a few minutes I may be able to find my diagram I made.....




Last edited by CAM2; 1 Week Ago at 09:32 PM.
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post #7 of 22 (permalink) Old 1 Week Ago
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Re: New to mini bikes

That lets air into the head pipe to help burn all the gas for a cleaner exhaust, or Smog. On my 110cc dirt bike I made a plate and block it off.

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Re: New to mini bikes

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Originally Posted by SteamRollin View Post
Thanks CAM2, do you have a write up on that PVC V-stack build? What's the rear evac tube?
I finally stripped her of the "fairings" and drained the engine oil, which I swear had a faint scent of gasoline. Is there anyway that this is possible, to have fuel leak into the engine oil?





What is this port for on the exhaust and where does that hose lead to?[/B]



Thank you all again,
-Steam
In pictures 3 and 4 thats the air injector that injects air into the exhaust.,,instead of hooking the evac hose to the carb hook the evac hose to the end of the black canister so it sucks the pressure out like a moroso vacuum balance kit for hotrods........
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Re: New to mini bikes

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On my 110cc dirt bike I made a plate and block it off.
That's what I wanted to hear!!! What does that hose with the filter usually connect to, or does it just hang somewhere?
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Re: New to mini bikes

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In pictures 3 and 4 thats the air injector that injects air into the exhaust.,,instead of hooking the evac hose to the carb hook the evac hose to the end of the black canister so it sucks the pressure out like a moroso vacuum balance kit for hotrods........
Sorry CAM, I get really excited and impulsive (ADD). Thanks for the response!
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Re: New to mini bikes

My 110cc dirt bike and 125cc Quad ATV both have a Cat. Conv. in the exhaust pipe, you don't cause its built before 2010, like my 2008 X18. You can gut out your muffler for better flow, looks like Pop Rivet type muffler, you drill out the old rivets, take it apart & modify the baffle plates and put new pop rivets alum or SS. The conv. goes to a bigger pipe for 8" or so then back to the reg. size, I got a new VW Bug chrome exhaust pipe piece, fits right over the big section, cutting the Cat. Conv. part out and welding the VW pipe inbetween.

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My 110cc dirt bike and 125cc Quad ATV both have a Cat. Conv. in the exhaust pipe, you don't cause its built before 2010, like my 2008 X18. You can gut out your muffler for better flow, looks like Pop Rivet type muffler, you drill out the old rivets, take it apart & modify the baffle plates and put new pop rivets alum or SS. The conv. goes to a bigger pipe for 8" or so then back to the reg. size, I got a new VW Bug chrome exhaust pipe piece, fits right over the big section, cutting the Cat. Conv. part out and welding the VW pipe inbetween.
X-15's and 19's dont have catalystic converters in the pipes or the mufflers in 2008...

Theyre just open hollow cans on the x15 and dual 2 stroke stinger tips on the X19.....



They have a huge sloppy weld in the headpipe that makes the ID of the pipe alot smaller that just needs a 1" round tapered grinding stone on a drill to remove the restriction........






One pf the better mods to do is paint the pipe with VHT high heat paint then wrap the pipe with fiberglass headder wrap then paint the headder wrap with the High heatpaint again....

Keeping the pipe heated keeps the exhaust flowing fast and quick out the tailend...As the pipe cools the exhaust becomes denser and acts like a plug that chokes power..........







The X-18's and the X22's have restrictors/cats in their mufflers..........

On the left lower pic is an X18 muffler and on the right an X22...You can see the chokeplates.
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Last edited by CAM2; 1 Week Ago at 03:29 PM.
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Re: New to mini bikes

Welcome to the forum SteamRollin', Cam2 and EPR will have your x19 running in no time. They taught me everything i know, and still learning.

Hey cam, what did you use to keep the pvc pipe snugged on the carb? Did you just get a size that fits perfectly snug on the air intake side of the carb or did you use something like a clamp or rubber grommet to keep it tight? I've seen a similar idea used in four wheelers where they make a pvc pipe snorkle towards the top of the atv for underwater riding purposes.
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Re: New to mini bikes

rgv, hope everything is good for you, I am under candle/generator power since early Sat morning. A big tree took the top of a power pole. Comcast Infinity put a temp. power unit on the pole so we can use are computer stuff.

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Re: New to mini bikes

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Welcome to the forum SteamRollin', Cam2 and EPR will have your x19 running in no time. They taught me everything i know, and still learning.

Hey cam, what did you use to keep the pvc pipe snugged on the carb? Did you just get a size that fits perfectly snug on the air intake side of the carb or did you use something like a clamp or rubber grommet to keep it tight? I've seen a similar idea used in four wheelers where they make a pvc pipe snorkle towards the top of the atv for underwater riding purposes.
On the PZ-19mm carb mod I used the screen and a 1 1/4" PVC screw-in by 1 1/2" glue-in piece....

1-1/2" PVC Female Adapter,

I whittled the funnel shape in on the threaded side with a sharp pocket knife,,utility knife,,half round file and assorted sandpapers to shape smooth and polish it

I wrapped the screen around the front face around the 1/4" edges then I secured it by putting a bunch of slits in the PVC and secured it to the carb permanently with Military grade epoxy....



On the X15 with modded 22mm from a PZ19 carb with 22mm - 25mm taperported intake I ran it without an airfilter.....

I made the same intake setup for the ATC185 25mm carb with TRX90 25mm intake except this time I used a foam airfilter............



I drilled and tapped the intake for the hose barb fitting for the power evac head breather/crankcase breather system then slid the Foam Airfilter onto the homemade PVC intake then cut a small slit and screwed the hose barb into the hole in the homemade PVC.........

Last edited by CAM2; 6 Days Ago at 11:44 PM.
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Re: New to mini bikes

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rgv, hope everything is good for you, I am under candle/generator power since early Sat morning. A big tree took the top of a power pole. Comcast Infinity put a temp. power unit on the pole so we can use are computer stuff.
Colorado got belted by 100mph wind gusts yesterday and there was atleast 45-50 big rigs laying on their sides all across the state.....LOL

When I had the house on Indian reservation land the cable company told me it could take up to a year to put a line onto my property with wifi booster so seeings I did trenched aswell as trenchless fiber optic cable installations I rigged up something myself so I was able to communicate with the world.............LOL

Last edited by CAM2; 6 Days Ago at 12:59 AM.
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Re: New to mini bikes

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rgv, hope everything is good for you, I am under candle/generator power since early Sat morning. A big tree took the top of a power pole. Comcast Infinity put a temp. power unit on the pole so we can use are computer stuff.
I'm doing good EPR, no natural disasters this year thank goodness I live 45 minutes from the Gulf of Mexico so we get the Eye of the Hurricanes every year! I hope they fix your power soon, I always keep 2 generators ready for emergencies like these.
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Re: New to mini bikes

Cam, that is pretty smart thinking brother. I'm sure that took a lot of patience. So theoretically, we don't really need an air filter on the carb? Just some type of screen or foam thing to keep debris out of the carb correct? Where did you get your screen at? I just got a 1988 Honda TRX 200sx atv and it has the snorkle type air filter going towards the front of the atv. I wanna get rid of it and use a regular small foam filter. Guys, there's so many good deals down here it's unbelievable. I just don't have the $$ and space for all of them. I got a 250cc Suzuki atv yesterday for $50, yes fitty bucks!!!! Looks like it's from the 80s but haven't had time to look for the vin# yet. It starts but dies after a few seconds, 110% sure the carb is dirty. Some lady is selling a 2006 Artic Cat 4x4 650cc with title for $800 in perfect working condition. I just don't like spending that much $$ on toys lol.
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Cam, that is pretty smart thinking brother. I'm sure that took a lot of patience. So theoretically, we don't really need an air filter on the carb? Just some type of screen or foam thing to keep debris out of the carb correct? Where did you get your screen at? I just got a 1988 Honda TRX 200sx atv and it has the snorkle type air filter going towards the front of the atv. I wanna get rid of it and use a regular small foam filter. Guys, there's so many good deals down here it's unbelievable. I just don't have the $$ and space for all of them. I got a 250cc Suzuki atv yesterday for $50, yes fitty bucks!!!! Looks like it's from the 80s but haven't had time to look for the vin# yet. It starts but dies after a few seconds, 110% sure the carb is dirty. Some lady is selling a 2006 Artic Cat 4x4 650cc with title for $800 in perfect working condition. I just don't like spending that much $$ on toys lol.
Nice job on the acquisitions.......Its always fun learning different things...

It was like that here quite a few times,,,race karts,,jet skis,,nitro R/C,,pocketbikes....

Back in the 80's I used to have an 89 Suzuki ALT 185 trike....From the getgo it had intermittent ignition problems that even the dealership it was bought from couldnt figure it out........

One day I took the whole wiring harness off and buzzed the whole harness....It turned out to be a bad cold solder connection for the halls effect pickup on the stator......

Got an old Yammie DT225 trike I got for free that did the same thing....bought a brand new stator and it fired right up..........

It will be great if the carb is its only problem....Old stuff lasts alot longer than the newer stuff...

The screen I used was an insert for the air inlet on a boat vent hatch......

It kinda look like the screen in this ebay link.........

http://www.ebay.com/itm/Stainless-St...QAAOSw7aBVITkV

Last edited by CAM2; 4 Days Ago at 12:02 AM.
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Re: New to mini bikes

Guys what pocket bike is this? The guy selling it says it runs.
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