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CRF230F Engine Vibration

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I just picked up a very clean CRF2 and am shocked to find the engine very buzzy requiring almost immediate upshifting. I couldn't even immagine what it would be like to run down a road at even 1/3 throttle. Is this engine known to be buzzy or do i need to do something. My son's CRF150f is very smooth. It is an 06 with the different motor but still

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Loose engine mounts is the first thing that comes to mind.

But I recommend to check every nut, bolt and screw on entire bike, front to rear, top to bottom.

Also recommend to use blue lock tight where required/stated in factory shop manual while using a torque wrench on everything that requires using one.

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Is the heat shroud on the header pipe tight? I could see that being a real buzzer.

Grogg

Edited by Grogg

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