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Discussion Starter · #1 · (Edited)
hey,i have a x12 107cc,i put a26in carb and intake on it,custom exaust,20tooth rear sproket/17tooth front,and im runnin premium in it with ahint o octaine booster/mix,i also changed the cdi to a performance one,(but dont see any rpm difference),also my bike is automatic,after all that im runnin 50 MPH solid,what can i do to go faster?
 

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from most post i've read and videos i've seen they say buy a bigger engine 125cc and manual. there's only so much you could do with an auto. i've got an extra 110cc manual engine that'd be glad to sell, but i really don't know how i'd sell it and what not. but i've been trying to get 60mph too, i'm doing lots of mods for past weeks now and i've only top probably 50mph.

if you haven't yet tried, you can get a performance coil and ngk spark plug or iridium from what i'm reading. there are lots of threads i've search on top speed. you should do some search like i am and probably find a thread with someone who had a auto 110cc and made it faster. i know i'm not much help but i try.

here is a site i've been looking at and gives ideas on gear ratio, modifications like ignition coil, spark plugs, carburetors, and stuff to make your bike faster.
http://www.super-pocket-bike-scooter.com/X18_SUPER_POCKET_BIKE_FAQS.html
 

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thanks for the advice,i'll keep askin till i find out,im gonna hit at least 60,****ed determined,thanks again.
no problem, i'm determined also everyone looks at me funny when i'm riding my bike around cause its so small, but they don't know that i'd probably be able to keep up with them for a while. i'm shock tho, i'd think you'd have more speed with the gearing and bigger carb..
 

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If you have an X12 and its semi-auto you have a 70cc engine............X12's came 50cc full auto and 70cc semi-auto....There is a newer batch that has 110cc engines but have yet to see one.....

Look on your cylinder fin top left on shifter side in same spot as this one youll find a number that will be saying 107cm3 or it will say 49cm3.........



I took a bone stock X19 110cc full manual,,gave it total maintainance plus some mild modifiations and slapped on a 28 tooth rear sprocket and had that bike going faster than 65........
 

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Discussion Starter · #11 ·
what i have ecactly,mikuni 26in performance carb,26in intake,performance CDI,20tooth rear,17 tooth front,PBU x12 custom viper exaust,HOGS 107cc engine.FULLY AUTO...NO SHIFTER!Im doin 50 solid.MUST GO FASTER! hopefully the performance ignition coil i ordered,and iridium spark plug do somethin extra! IF ANYONE HAS ANY OTHER INFO TO HELP,PLEASE DO.
 

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Discussion Starter · #16 ·
hey,i just bought a lifan 125cc semi auto engine,i hooked it up but dont know if i still need the battery to run it,its a kick start,but i tried to turn it over and its kinda stiff,basically i dont know if im using enough pressure to kick it over,,dont want to break it,also do the 6 wires comming off the engine go straight to the cdi?help!!!!
 
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