Cylinder compression

I don`t think you can check the compression with a gauge because of the automatic decompression
device will be operating.

I haven`t done it myself but a leak down tester might work.

i have checked compression with aa regular compression tester (with the universal rubber attachment end you have to hold into the cylinder i didnt have an attachment for the samll plug hole) using electric start i still had high readings, i would guess a minimum of 125psi would be expected, when i checked mine the timing chain was off one tooth (this is how i bought the bike) and the reading i got was consistanly 150 with the autodecropessor working ok i have not tried it since i put the timing chain to the correct setting to know if it changed, i also used a leakcown tester but had a hard time with it setting with 100psi like you should tast it with...it always tried to turn the cylinder over but again the cam timing was off one toothe when i ran the test, i tried to use a socket and breaker bar to hold to crank at tdc when appling pressure but it just loosens the nut on the crankshaft because it has right hand threads....good luck

p.s the auto decomp mechanism is still activly working when you use the kickstart, like i said above the tests i ran were with the cam timing off one tooth and have not tried it since then