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Bogging on jump landing but no where else?

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Just wondering if anyone can help me. 300exc keeps bogging on the landing of jumps but no where else. The jetting is fine and will pull hard from low revs. I have altered the float height in the carb this has helped a bit but no cured the problem. Any ideas ???

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On a lot of bikes, the floats max drop stop is set to allow the float to drop too much. Whatever your minimum drop spec is, set the max stop to 5mm more than that. That prevents the float from being forced down into the level of the fuel upon hard landings and displacing fuel. Try this fix and post your results.

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