I have not solved the problem.I am waiting for a compression tester to arrive so I can eliminate that side.
I checked the compression 3 times and it is the same result
compression 85psi what is norm
it made no difference, throttle open or off, I have ordered a new top set it will be here today. Originally I only rebuilt the bottom end as the variater outerflange had damaged the crank. The engine was running ok up till then.
The new head and piston fitted, still would not start. Checked the pressure again slightly better 95psi
Since I last e mailed I have fitted a new reed valve. The engine still will not start, the compression with throttle wide open now upto 105psi. The engine turns over but makes no attempt to fire