high idle when hot

Need some help. When my bike is hot the idle ramps up. Stock jetting FMF Q4 slip on. BTW it's an 04 yz450 thanks.

Adjust the idle mixture:


Read also:


Not familiar with the pilot screw?:


Adjust the idle speed with the engine warm after setting the pilot. If the pilot screw adjustment doesn't resolve the issue, check for a poor seal at the carb mounting sleeve. If not that, or just because you've never checked, look for tight intake valves.

Cool thanks alot for your quick responce i'll try that and let you know how it goes.

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