Two Stroke Motocross

Two Stroke Motocross Forum => Technical => Topic started by: rlaj1004 on November 04, 2013, 12:50:44 AM

Title: KTM 250 HELP
Post by: rlaj1004 on November 04, 2013, 12:50:44 AM

I was riding this weekend and my bike did something funny
Totally randomly in 4th, after a double when I pinned the throttle it bogged, no power for about 1 second, then ran normal. It did it again after a step up, each time I pinned it , it bogs and then goes. I was on my last time out so after the 3rd or 4th time I decided to stop. Wasn't at any incline or anything, just randomly ever so often.

Im in the process of dismantling my bike for cleaning but if anyone has any ideas, I would appreciate it.

Title: KTM 250 HELP
Post by: eprovenzano on November 04, 2013, 01:14:32 AM

Pull the bowl off the carb and look for some dirt.  I'm wondering if you got dirt in the carb

Title: KTM 250 HELP
Post by: evo550 on November 04, 2013, 02:39:06 AM

Sounds like you may need to reset your float level.

Title: KTM 250 HELP
Post by: factoryX on November 04, 2013, 03:51:02 AM

Fuel starvation, deff would check float height and main jet.

Title: KTM 250 HELP
Post by: rlaj1004 on November 05, 2013, 04:40:42 PM

Thats what I thought, and what I am hoping for. I was thinking either a piece of dirt or something in the carb. Was wierd cus I rode all day with no issues. I was on my last time out for the day.  Air filter was clean before the day too.
I am going through the whole bike now just in case.

Title: KTM 250 HELP
Post by: factoryX on November 06, 2013, 01:33:56 AM

Usually dirt gets into the carb via gas tank. Why people run fuel filters.

Title: KTM 250 HELP
Post by: Stusmoke on November 07, 2013, 11:02:24 AM

I'd suggest checking for air leaks. Bout a year ago some guy had the same issue turned out to be an air leak caused by the shock of landing a big jump. Cracked cases or something if I remember.

More likely to be the above things though, just something to keep in mind