Recomissionining an old 010av

[spudulike]

Right, so I've rebuilt the carb again. The saw is very hard to to start. I've tested compression which is showing 90psi which sounds low. But then I've read a lot on here about car/bike testers being unsuitable.

 

Is there anything else to test before looking at a cylinder/piston kit?

 

I forgot to mention it will start, but dies very quickly regardless of choke/throttle. I can only keep it running for sub 10 seconds.

 

Thanks,

 

Gaz

 

The compression reading is pants, 90psi isn't enough for combustion. Pick the saw up, hold the starter and let it fall to full extension and time the drop. Probably more accurate than your gauge!

 

If it is actually running but not well and there is no scoring on the piston, chances are you will waste your money on a new cylinder!