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Hi all,I have been on here ages ago asking probs with my engine,well 1 year later I'm still having it. To start with the motor didn't run right as it came with a Mollt carb,got a oko 26mm flat side and it still didn't run right,when I say didn't run right........basically spits fuel out of the...

hi all,i got a new yx150 piston kit and the 2 top rings have D and the other has DY stamped on them,which one goes to the top?

hey there i hve a pitster pro 155z ho engine and was goin to get this carb,before i do is it the right choice or should i get the 26mm? will the oko30mm need a special throttle cable or would my normal one fit? and what main jet and polit jet should i use,i think by memory the 26mm users 100...

cant get on there website for the last few days,have they changed there web address?

hey there,got this new ho 155z engine from pitster pro and have had nothing but trouble with it running right,after mid range it doesnt run right,it sounds like a valve bouncing sound or rev limiter if ya get my drift,valve clearances are correct and carby is set right as well,was wondering if...

does anyone know what the difference is between the lifan engines that have the clutch arm at the back of motor near the oil dip stick and the other engine that has the clutch arm at the front near the barrel.Is there any advantages or disavantages in this.Dont know which one is best to buy

hey everyone,does anyone know what motors out there fit straight into a 2006 thumpstar pro 125? i was hoping that a lifan 138 would or just a lifan 125,Your help would be awsome. thanks