TOPIC:

Ok so i took the carb apart anf cleaned it put it back together but no luck. So i took the other carb apart and put the jets etc from the gfr in the other carb and still no joy. Anyone know what i should try next?

Has the carb stopped flooding? There may be un-burnt fuel in the crankcase after it was flooding before. Unfortunately the GFR has no drain plug like some old two strokes. Have you 'aired' the motor by spinning it over with plug out, fuel off and throttle wide open?

Is there plenty of compression?

Sure there is still a good spark - at the right time? I suppose it's just possible that the stator has slipped and put the timing out.

Ok will try to get rid of the fuel first. I have a great spark but like you said is it sparking at the right time? I shall have a look at the timing also. Hope this will work.

Hi Scott,
Check ignition timing but most unlikely to be out of setting I think all bikes for the last 40 years have had ignition timing in a fixed position as the rotor is keyed onto the crank, I have had a key shear, but very rare as there is very little load on the rotor, after all your troubles I expect you to have as little hair as I do
John

The two stroke 125s have slots in the stator which allow the timing to be adjusted (it varies from 16 to 19 degrees BTDC depending on the model). There should be a mark on the crankcase to align it. See page 102 of the CX, Crono etc. manual.

I can't remember if Scott had to swap the stator from his Crono because the GFR one was U/S and so disturbed the mounting screws.

Having said that, even if the screws become loose and the stator turns to the limit of the slots I don't know if that would put the timing out far enough to prevent it starting.

Worth checking if everything else has been discounted, but a pain because you have to have the flywheel rotor off again.

i know its going to be a real pain in the arse, as i don't have a flywheel puller. the stator is from the crono, you are right Pete it did work once though so i'm sure the bike shall live again.....