2006 YZ450f backfires then dies.

[mgfmotox]

A few weeks ago i went through some deep water with my friend. I thought that it was backfiring because i got something wet, so i let it dry out for a week and it was still backfiring and then it would bog out and die then it would be a pain to try to get started again. We got a new FMF Q2 pipe on there and rejeted it and it still did the same thing. If anyone knows whats wrong with it let me know.

[642MX]

Sounds like it may have water in the fuel. Try draining the tank & carb.

[hillclimbguy]

Check the spark plug wire and the plug it self. May have water in the cap. This has happened to me before.

[mgfmotox]

When i took it in to another shop the found that the fuel line was kinked around the carb. We untangled it and it ran great. But thanks for the responses.