300ex timing

[not2hi]

On the 300EX, is there an easy way of checking the timing without removing the valve cover?

I just put the motor back together after getting a new (used) bottom end...I'm relatively sure I got the timing set right, but she won't start...fuel is good, spark is good...any other things to look for?

I had this bike down to the frame and its taken me a few months to get her back together, so I might have missed something somewhere...i'm sure its something small that'll really tick me off when I find it!

[hondardr4life]

No, you have to take the cover off, unfortunatly.

[Israeli 300EX]

if you have a spark - check if the spark apear when valve are totaly close!

you can check it easy w/o open all head cover.

if it does i'd go to fuel system.

remember that spark come two times!
1st it on time
2nd it's 360 degrees oposit.

[tolson]

if you messed with the electical, check the kill button switch. if it is turning over but not firing, you could have a bad kill switch. if you have the wiring apart it is the black/white wire that need power to run. try jumping it out.