Monster 620i misfire

[villageidiot]

Monster 620i misfire
Hi, My wife's 620i Monster has developed an intermitent misfire, it has happened on three ocasions now, each time in very wet weather. I always spray all the electrics with WD40 or an electrical spray so am not convinced it is just the water/dampness, if the bike is parked up for a short while after misfiring it is OK. It only misfires up to about 3K revs then clears. Does this sound familiar to anyone or anyone got any suggestions where to start looking?

[Headhunter]

Take a look at this link. Same thing happens to me every now and again. Only when it's chucking it down and is sat idling at the lights. May shed some light.

p.s. I also spray WD40 etc.

http://www.ukmonster.co.uk/monster/showthread.php?t=25546

[Unit 18]

If its still playing up, something we are coming across fairly often is a problem with the pickup, in that over time they seem to need re shimming closer to the gear it gets the signal from. They can also start to bulge about half way down and then need replacing.
Another sympton of this is poor starting.
Hope it helps, regards, Al.