XR650L: no spark - where to start...

My 03 "L" has been running great - and suddenly - it won't start. The fuel delivery seems fine - but the plug has no spark. tried a new plug - no spark. Is there a weak link I should check out 1st - like the coil or pulse generator. Thanks for the help in advance......

The weak link on the 650L is the CDI box. It is a very common failure.

my 03 cdi box went out a month ago.

My 03 "L" has been running great - and suddenly - it won't start. The fuel delivery seems fine - but the plug has no spark. tried a new plug - no spark. Is there a weak link I should check out 1st - like the coil or pulse generator. Thanks for the help in advance......

good starting point...

take both wires off the clutch switch and ground them both. this bypasses all safety switches.

if you still have no spark then look at the cdi unit.

Is there a way to check to see if the CDI is bad ie....can you use a meter on it?

Also, is there a good after market brand of CDI thats better than the stock Honda unit? Thanks...

not really. all you can do is verify it has all the necessary inputs.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now