I have a pitster pro x4 with a tb 146 big bore kit. 1st 2nd and 4th gear run fine. Whenever i get into 3rd gear the bike has a constant jerk almost like the clutch is engaging then disengaging idk if it would be the clutch or something with the transmission any help would be much appreciated!!!
Is this a clutch problem?
- Thread starter Jstreett
- Start date
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Sounds to me like you have done 3rd gear if it only happens in that gear.
Yeah you can replace the gear. Big job though. Need to split the cases.
sean01
Legend Spanner Spinner
what engine is it running and is it a start in any gear engine?
if so then depending on the sprocket shaft size buy a new lifan 140 or zonger 140 gearbox and gear drum
as for a manual, look in my sig
if so then depending on the sprocket shaft size buy a new lifan 140 or zonger 140 gearbox and gear drum
as for a manual, look in my sig
The_GDFP
Master Spanner Spinner
3rd is the weak link in all the chimport engines. Weak, narrow and with wimpy engagement dogs.
rotn50
Master Spanner Spinning Moderator
sometimes one or both forks on the gear drum will wear heavily and wear away some metal on them which prevents them from pushing the gear all the way in causing it to jump, either way like the boys said you will need to split the cases to find out, but if there isnt any broken gears then inspect the forks on the gear drum and 99% of the time there will be excessive wear on one or the other forks.
