Hoping somebody has seen this before. I have a '11 WR450, properly jetted, FMF exhaust. Ran fine last time I rode last week. This time It acted like the spark was cutting out. Happend at any throttle position. Would loose all power/acceleration for about a second or so and come right back on again. Did not do this all the time, very intermittant. Did it for about 20 minutes then problem went away for about an hour and a half of riding then returned. It actually totally died at one point, was very difficult to start. Full tank of fresh fuel, fresh oil, occured on both ON and Reserve. Choke off. 69 degrees ambient and dry. When it wasn't doing this cutting out it ripped just as before the problem set-in. Problem was not affected by duration of riding, engine heat, bumps, up hill or down hill. Bike was washed w/ garden hose after last ride, but has had plenty of time for water to dry out of the bad places.
Is there any part in the ignition system that typcially fails like this? Any help is appreciated.
Edited by Taxgod4u, November 10, 2013 - 04:04 PM.