Topic: Won't start from hot

[Mainebikes1]

Yes, it could be incorrect timing but even that can be pretty much revealed with the leak down testing. If all cylinders have acceptable leak down results but compression is low across all cylinders that helps to verify it is likely a timing issue. The main point here is that a leak down is an easy test to perform and it can tell you a lot without having to open anything...

[scottly]

Compression cold just about 100psi.
Compression hot 70psi.

Re-check your tappet clearances, one cylinder at a time. Better too loose than too tight.

[Robin hood]

Thanks guys.
I will try the oil test first .
Regards all

[2wheels]

I like Scotties idea, sound advice.  As always.

Be sure it is just a few (like 3 or 4) drops of oil, more is not better.

[johans]

Also , in regard to a compression test ; the length of the hose will greatly affect the final readings ( as posted here on several occasions ) . A good cylinder will read low due to a long hose ( extra capacity ) , so have a dedicated motorcycle tester ( not a long hosed auto tester ) . You are also looking for similar readings more than anything . I rarely use my compression tester after getting my leak down tester years ago . It really pinpoints a problem and they are not that expensive . You just need a air compressor to hook it up to .
  I'm curious how many engines were torn down unnecessarily due to the wrong compression tester being used ...

I also would look @ electrical components which fail after heating up and acting normally after they cool down. imho-