klx650r 1996 compression problems

[andrei]

hello everyone

I've got klx650r 1996 .(the KACR mechanism have been taken off the bike before i bought it). i had compression lost(about 50%) and the bike would choke when idle. first i checked the shims clearance and it was way out of the service manual correct clearance.

correct clearance : my clearance:

exhaust : 0.15~0.24 mm exhaust: (right)0.355mm (left)0.330mm

intake:0.10~0.19 mm intake: (right)0.2159mm (left)0.292mm

two questions:

1. could the shims clearance be the only/main reason for the power loss?

2. i replaced the shims and when i reassembly it i probably didn't set the timing chain right and the right upper chain guide(tensioner) had been broken while i was turning the magneto flywheel(manually) , ? what should i do? should replace the broken part and reassembly the top engine back , or should i take the top engine off and check if there any valve damage done because of miss set of timing chain?

Any advise is very appreciated . ?

Thank you for reading the massage and best regards

Andrei

[freewheelers]

Based on what I can get out of your discription ... I would check ( inspect )the valves ... Miss timing the cams to the crank will cause bent valves if you were to far off ... the extra clearence that you had in the valve lash would make the top end noisy ... however ... It should not cause a 50% power loss