Originally Posted by DJS
If you canít find the manufactures figures for the compression thatís not the end of the earth, the key is to ensure all cylinders are within 10 to 20 psi or thereabouts of each other. Always crank the engine until the compression gauge reaches the maximum reading. Depending on the engine WOT improves the volumetric efficiency!
If working in Bar 1 bar =14.7psi.
Hope this is useful!
Thanks for your answers everyone.
However it's a single cylinder, so comparing is impossible
I did as advised anyway having throttle WOT, and I'm happy enough with the result so all good cheers