Thanks for the info. I now have another rebuild to do as the boy has seized it again after just 150 miles. He says he wasn't ragging it but -------------? This is its final chance, next time it's spares or repair on E-bay.
Thanks, the basic setting according to Mr Haynes is 1 3/4 turns out but it's not happy there and difficult to tell with these little 2 strokes if it's getting richer or leaner as the revs go up whichever way I turn it. It'd probably be easier with the drive belt off as the auto clutch cuts in as soon as the revs rise. 4 strokes and model glow motors are much easier
I've just replaced the piston and barrel on my grandsons ped. It's fairly well run in now but I'm having trouble setting up the idle. It's a slide type that I know well from the old Amal Monobloc but I can't work out if the idle mixture screw is fuel or air bleed. It's a right sod to get at without taking off loads of plastic so it would be handy to know if I'm turning it the right way.
The speedo on my 'F' plate CG125(Br) started to over-read after my grandson dropped it It's OK up to about 40mph but then starts go berserk. I've stripped the instrument out and found the the rotating part is slightly out of line. I tried to straighten it but, though there was a slight improvement it is very difficult to get it completely right. I'll live with it for now but on the lookout for a replacement.