Haven't used the bike for a couple of weeks started up fine on sunday didn't rev well until the stale fuel had been used, used it a couple of hours later no problems.
Started up today, no choke fired first time but backfired for the first time i've had, a couple of years now.
Is this nothing to worry about or the precurser to something else? Never had a problem before.
02 model.
cheers
Nick