2000 yamaha r6?

Question

My friends bike the other day wouldn't start up for some reason,,, It sounds like it is going to but it never does, it also doesnt make the typical noise it does when you turn the key on... It's tries to start just doesn't want to crank up,, when you take the oil cap off you can see it spining in there... any suggestions will help? battery is good btw.

Answer 1

first check spark ,gas,timing