Timing mark on flywheel won't stay on TDC just gose to the 'F' pit bike, lifan engine

[Rizzo97]

Hey Everyone. Been getting some good info and whatnot from this site so thought it was about time I singed up :action-smiley-003: anyway.. Tittle pretty much says it, when I try put the engine on TDC I can't get the T mark to stay on the marking on the crankcase, it sits on the F fine though. So I adjusted the valve clearences while it was on the F. The bike runs, starts fine, idles fine .. Dosnt seem like theres anything wrong with it at all.. Is there a reson it won't sit on the T mark? And will it harm the engine if I do the valve clearences on the F mark?

 

[my67xr]

Welcome to Miniriders Rizzo,
drop in and say g'day in our Introduce Yourself thread too while you're here.

did you try taking the spark plug out ?


craig

 

[Rizzo97]

Will do,

yea That was my first thought so I took it out but still won't stay there

 

[my67xr]

do you have the cam gear cover off the head ?
is that mark lined up at 9 o'clock ?

 

[Rizzo97]

Yea I do, but since I can't get flywheel to stay on the T that mark it sits bout 1 tooth above on the cam gear.

 

[gottagetacheaperhobby]

sometimes the magnet will pull it round that little bit, see if you can get a screw driver to lock it off, or a mate to hold it there. i had this happen on a couple of lifan 125's, and i just got my missus to hold it there for me

 

[Rizzo97]

My 125rr dose the same thing but if I flip it round 360 it stays, but by the time I'm done doin the inlet clearence it's moved half way to the F :action-smiley-003: il re do them on me bros bike with a spannern there or rig somthin up, so adjusting the valve clearences whileitson the F is not good ?? Thanks for the quick posts ay fellas

 

[my67xr]

and just make sure that the rockers are sitting on the low part of the camshaft, with the lobes facing the cylinder before you go and adjust it.

 

[kosta]

Try putting it in high gear, might help.

 

[Rizzo97]

I am goin to try a idea I just had I'll post the solution if I get it right :action-smiley-003:

 

[Rizzo97]

Try putting it in high gear, might help.

Havnt done that yet slits worth a crack

 

[Rizzo97]

I took the flywheel off then placed it back on and lined it up, once lined up i held the cam gear in place and slid flywheel off and it disnt move b_grind: