Wouldn’t boost with truck etc. Changed battery, new starter. Same thing. Cables getting hot between batt and solenoid. Jumped out starter solenoid. No change.
Cleaned all cables, grounds etc.
performed voltage drop check across all wires . ok
checked decompression mech. Moves and can see pin moving in and out on cam but cant see how much pin is protruding
Stumped.
Tonight checking valve adjustment, then if ok going to have to pull cam and rockers to see what’s going on.
With spark plug out engine rotates freely and moves easily with ratchet.
Timing marks are bang on and Loudtronics had me check tensioner as well. its all good
Did compression test last night, first rotation went to 120 psi and 2nd went to just under 150psi.
manual says 55-65 psi which leads me to believe issue with decompression mech.
When I get it started occasionally. it runs good. Run it up down street no issues.
Issue started after 40km run shut off bike, an hr later wouldn’t start. Kept trying and ended up burning off neg batt post. Had to have been loose I am assuming.
internet says lots of people have had issues with decompression before.
If you had issues what did you find ? Worn pin, broken spring etc.
Im baffled with this one !
Cheers