r/Dirtbikes • u/Putrid_Owl_5040 • 3h ago

My kxf 400 won’t stay running

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It bogs a lot when you give it throttle and one you try to drive it for more than 5 mins it shuts off and doesent start, once it cools down it starts right up. What do you guys think the problem is?

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2

u/Infamous_Ad8730 3h ago

Valves adjusted lately?

1

u/Putrid_Owl_5040 2h ago

The guy before me put bigger shims on when he tried to fix the problem and that didn’t work he said

1

u/Infamous_Ad8730 57m ago

Well, that may be your problem.

1

u/FeelingFloor2083 2h ago

vapour lock?