Way to remove rust? - Pocket Bike Forum - Mini Bikes
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post #1 of 21 (permalink) Old 01-02-2017 Thread Starter
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Way to remove rust?

Hey, i wonder if there is a way to remove the rust on my pocket bike. Would also like to know which model of a pocket bike it is (owned it for about 5-10 years and started rust recently)
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post #2 of 21 (permalink) Old 01-02-2017
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Re: Way to remove rust?

Looks like you have an X6 70-110cc full auto 4 stroke........

Depends on where the rust is is how it needs to be taken care of......If its the frame id strip it with fire n sandpqaper,,reprime with self etching primer then paint and protect it.....

Good Luck
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post #3 of 21 (permalink) Old 01-02-2017
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Re: Way to remove rust?

CLR ( Calcium, Lime & Rust ) remover will clean rust.

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post #4 of 21 (permalink) Old 01-02-2017 Thread Starter
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Re: Way to remove rust?

Alright, Thanks so i would guess it was a 2 stroke 49cc X6 before. Swapped the engine a time ago to something abit bigger a 150cc 4 stroke, was hard to do. Needs some new sprockets for higher top speed.
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post #5 of 21 (permalink) Old 01-03-2017
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Re: Way to remove rust?

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Alright, Thanks so i would guess it was a 2 stroke 49cc X6 before. Swapped the engine a time ago to something abit bigger a 150cc 4 stroke, was hard to do. Needs some new sprockets for higher top speed.
Looks like it was always a 4 stroke model....The hydraulic front forks and hydraulic brakes are the indicator...

2 stroke models come with springer front forks aswell as cable brakes.......
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post #6 of 21 (permalink) Old 01-03-2017 Thread Starter
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Re: Way to remove rust?

The forks and brakes were added by me after i upgraded to make it feel more stable and so. Was also hard to do as with engine. as you probaly can see its modified at the front with moped front and such. also some parts are welded on the back.
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post #7 of 21 (permalink) Old 01-03-2017
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Re: Way to remove rust?

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The forks and brakes were added by me after i upgraded to make it feel more stable and so. Was also hard to do as with engine. as you probaly can see its modified at the front with moped front and such. also some parts are welded on the back.
Pretty cool......You can get an engine front sprocket as large as 18tth and a rear as small as 32tth..

After that youll need to do different mods like getting front forks and rear swingarm from a pitbike and going bigger on the rims......You can add streetbike tires to the pitbike rims too..........

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post #8 of 21 (permalink) Old 01-04-2017
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Re: Way to remove rust?

It's a very nice bike, I like the front fairing and light, where did you get it??

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post #9 of 21 (permalink) Old 01-05-2017 Thread Starter
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Re: Way to remove rust?

The fairing and light are from a Derbi Senda moped from the year before 2007 i think not really sure. Nothing with lights are connected but i plan on doing it. and get blinkers and such.

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post #10 of 21 (permalink) Old 01-05-2017 Thread Starter
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Re: Way to remove rust?

Have had carb problems aswell due to dirt being in the carb by not using fuel filter. Suprised how it could have run for about 5-10 years without fuel filter. Now im trying to find out what gives up on my new carb. What i think is Air Leakage somewhere.

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Re: Way to remove rust?

Sounds like you do have an airleak,,,its easy to get the isolator reversed and put the o-ring on the carb mated to the o-ring on the plastic isolator...

Its also easy to crack the plastic isolator aswell from overtightening........


In the pics in the vid it looks like your engine has a 17mm intake manifold....The cylinder is way too short for being 150cc's........

This is a 19mm intake from a 110cc modded to a 22mm..........22mm comes stock on the 125cc's and 26mm comes on the 150cc...






Take pics of the black finned cylinder on the top edge of left leg[when sitting] side of bike........


.

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post #12 of 21 (permalink) Old 01-05-2017 Thread Starter
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Re: Way to remove rust?

It's a 19mm. As i recently bought PZ19 Carb fitted like a glove. Bad part is, it's made in china and i don't know how well the quality is of those carbs. My old one was made in Japan and held for about 5 years
Picture is the old one



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post #13 of 21 (permalink) Old 01-05-2017 Thread Starter
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Re: Way to remove rust?

Weird part is. If i throttle when choke is on it works perfect. But when i turn the choke off it dies, but idles.
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post #14 of 21 (permalink) Old 01-05-2017 Thread Starter
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Re: Way to remove rust?

Which way is the isolator suppose to go? torwads the carb with the o ring?
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Re: Way to remove rust?

So, were talking about a PZ19mm on a 150cc 4 stroke engine?? I have a 25mm dirt carb on my 110cc X18, a hair much, but have a new 22mm Kei-Hin $25 Honda carb and 22mm manifold going on in Spring. I have a new PZ27mm for a 150cc four stroke here, got it for my GY6 150cc scooter, but now have 28, 30, & 32mm clone KOSO power jet carbs to try.
The smooth part of the isolator goes to the carbs O ring and the O ring side to the intake manifold. Have you taken the float bowl off the new carb??

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post #16 of 21 (permalink) Old 01-06-2017 Thread Starter
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Re: Way to remove rust?

Nop don't want to risk breaking it as i did with the old one hehe. it gets fuel thru and idles perfect but when thorttling it dies. I don't know which way the choke is on or off as when i have the lever down i can thorttle but when i have it up it dies. Look on the picture. Also it idles higher when the lever is down and idles lower when the lever is up and then i mean really low like a normal bike compared to when it down where it sounds like you driving away.
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Re: Way to remove rust?

That 19mm carb jet is to small to feed that 150cc engine. If the float bowl has 2 screws take them off w/ the carb up side down, and look at the parts, they are slapped together in China, so new means Nothing. Get a 1mm drill, .040" and take the main jet and drill it bigger, and if it works better your in the ballpark. I would try putting the carb piston needle on the lower slot of 5, to raise it out of the main jet atomizer tube.

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post #18 of 21 (permalink) Old 01-07-2017 Thread Starter
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Re: Way to remove rust?

Is it too small for even a 110cc?
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post #19 of 21 (permalink) Old 01-07-2017 Thread Starter
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Re: Way to remove rust?

Got a friend that has the same problem aswell but a 110cc and same carb
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Re: Way to remove rust?

How big is the intake port in the head 20, 25, or 28mm. The China carbs are Junk, and every carb is different. A Japan ma,de Honda carb Kei>Hin 22mm works much better on a 110cc fast take off more top speed. Mine cost $25 and a $8, 22mm intake. If you have a 150cc you need a 27-30mm carb, the head port should be 27mm or so.

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