I now have good and bad news!
Good part is that I'm now convinced I have a good spark. Got a nice strong blue spark on both cylinders without the ground electrode
Next good thing is that I'm also pretty sure what the problem is.
I only have 90 PSI compression on the top cylinder, and it takes a good 5-7 kicks to get it up there! But turns out I only have 20-30 PSI on the front!!!
No wonder it won't start... I'm really happy I made it home to Denmark with that engine!
I will start taking the top end off now, but needless to say I'm expecting the worst.
That MC21 engine on Ebay from Cyprus is starting to look really attractive
Any thoughts on this? Would worn piston rings make this much difference, or will I see a piston that's destroyed?
I'll buy the nearest guesser a beer next time I'm in the UK or Australia
Could the engine have been runing very lean due to the HRC pipes (as upossed to what I thought)?
If the bike really had a top end rebuild less than 1000 miles ago I wouldn't expect this kind of compression unless something is seriously wrong!
/Valdemar