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Discussion Starter · #1 ·
Hi, I just picked up a project. I think it was an X18. No body parts. It has a Lifan 110cc motor on it that was not the original.
Got the bike running. It has a 19mm carb on it now. I would like to put a bigger carb. on it. What would be the biggest recommended carb on this engine? Should I also replace the intake to match the carb?
Any help is appreciated.
 

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Get a 22mm dirt bike, ATV carb w/ lever choke for about $25 on eBay and round the lip on the top off your 20mm intake to match the back of the carb.
 

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Hi,! & a big welcome to the site from Western Canada. I'll go with EPR on his recommendation & you can probably clean up your orig 19 mil carb good & Resell it for maybe more ca$h than the 22mm off ebay !
 

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Welcome to the site, I agree with EPR and RAMITT22, def go with the 22mm Carb, also you can sell your 19mm or keep it as a back up you never know, post some pics of your bike, I would love to see it
 

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Going to take photos of my 20mm, 25mm for the 125cc ATV, the 20 started leaking all over and flooding the engine and there is no air idle adj. So I am going to 25mm on a 26mm intake manifold on a gold swivel. The head port is 24mm. Also a 22mm & 26mm Mikuni and a 27mm carb for a 200 vertical eng, and maybe throw in a stock PZ19s I have 3, there all made at a different factory in China,lol.
 

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Yes sir, that's why we do it.
 

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Discussion Starter · #11 ·
THANKS FOR ALL THE ADVICE
do you decrement a 22mm carb and a 20mm intake
can i go any bigger do you think or is that as big as i could go?
 

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22mm carb would be the biggest I'd go the intake ports are 23mm or on my 2011 x19 its only 22 mm I think I did port it to match my intake tho
 

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The 25mm works real good on my 125cc ATV, I already freed up the exhaust flow. The twist throttle is so much better than the thumb one.
I have a blue finned CDI here and an orange hp coil on the way. Will install them at the same time.
Put a round lip on the 20mm manifold where it mounts to the black isolator and carb, the air passes over round better than a sharp edge.
 
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