I am having issues also. My bike will not start. Think I have bent valves, so i ordered them from Amazon for $35. Can you run a compression test by starting it since mine will not start at all? I am not getting any reading from the tester. I tried kick starting it and electric starting it and no compression.
Procedure for doing a compression test as I understand it:
Start the bike and let it warm up. If your bike won't start, you can skip this step.
Make sure battery is fully charged.
Pull spark plug and twist in compression tester, making sure it's snug enough to seal
Open throttle all the way and press the starter button. Using the kick starter will work, too.
Watch the needle come up on the compression tester with each compression stroke.
When the needle reaches it's highest reading, usually after 2 or 3 compression strokes, stop and record the reading.
If you get a low reading and want to determine if it's ring trouble or valve trouble, squirt a little bit of oil in the cylinder and repeat.
If the compression reading comes up, then the trouble is with rings. If not, it's valve problems.
If the tester will read nothing, as in your case, it's safe to assume you have a bent valve.