Ok, så tell me where I should start to investigate...

 

Block the rear end up and turn the wheels and listen.
Rear end or clutch's I'm thinking. If you can't tell, take the front sprocket off. That'll tell you quick enough whether it's in the rear end or not.

 

So the thing is this...

This shitty little thing has given me grey hair since i bought it... Se this thread:
https://atvconnection.com/forums/kid...rtfailure.html Remember?

I did the compression test (150 psi)
I cleaned the carb (Stripped it and boild in water, ran good for some time after that)
Now it´s dead again. When i try to start it for the first time, it turns over and runs for about 1 sec to 1 min in idle then it dies and becomes impossible to start.

So i pushed it in to the garage and then i heard this noice.
When i push the startbutton for a while trying to start it, it kind of wants to move forward. Could this means the clutch is faulty?

But the question remains... WHY WON´T IT START? The sparkplug shows a spark when mounted in cap and held against cylinder and the startermotor is engaged. And the sparkplug is "wet" when i check it.