Join Date: Apr 2018
Location: Aiken, SC
Thanked 37 Times in 32 Posts
Feedback Score: 1 reviews
Assume you have fresh gas. If not, add fresh gas.
I like to add a little Marvel Mystery Oil to the tank. It might be snake oil but it has seemed to fix rough running motors for me in the past. And it definitely cured an R1 that was stalling a few years ago.
Then go over the checklist:
Good Gas - Check
Good pump - Check
Good battery - Assume yes if she's starting strong.
Good spark? -- bit of a pain to check but you gotta do it.
Things that get recommended but I wouldn't do:
Mess with the injectors. These rarely clog, I've never seen it, though I've never had a very high mileage 600rr.
I had a similar thing a few months back. The bike started, idled some, then stalled, seemingly at random.
In that case it was a loose ground. It was making a connection most of the time but after a bit of vibrating it would lose the connection and stall. Unlikely this is your problem but just an example of odd things that can give you fits.