Hi
Having over the last few months had one of the M20's apart in big lumps to do a bit painting etc, all tinware off racks, oil tank, tool box, put it all back together, took it for a couple of short shakedown runs, and I did manage to get it into 4th when warmed and never thought anymore about it as this was par for the course.
This weekend taking it for a run out It has now decided not to select 4th gear.
This particular bike has always had its own mind as too when it would to go into 4th, it seemed to prefer to first go into 4th after a short while running and warmed up?, and like all of them at the right revs etc.
The only thing I have done to the gearbox before putting it back was to change the Outer Case gasket (Draganfly) flushed it out, put new oil in.
The primary and rear chains are not too tight
Moved the gear change lever up a notch on the spline no good.
Bike on rear stand ticking over, will go into 1st 2nd 3rd but you can hear it chattering trying to go into 4th, selects neutral ok
Engine off, plug out, rotate rear wheel by hand select 1st 2nd 3rd ok will not go into 4th can hear it chattering but not just meshing!
Before I take the gearbox off is there anything can be done in situ (don't mention those rear gearbox nuts!!)
any practical advice glady received
JOHN B
