Question about 2004 Yamaha YZ 250 F

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My bike is a 06 yz250f its getting very hot .

Its overheating and the hose above the waterpump is swelling a lot.
and when it gets hot is starts running like junk NO POWER BARLY
at all. and my antyfreeze says its premix 50/50 but it looks real thick so do i mix it 50/50 or dose that mean its allready mixed.dose this bike have a thermastat like a car? and could it just be cloged up. or do u think its the water pump.

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  • joe May 11, 2010

    did you recently change the coolant on this bike and the problems started after this coolant change?



    50/50 on the bottle usually means its already premixed.

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Just open up your radiator kick it with the top off to get air out of the lines, also with the cap off pinch the hoses to let air out too...

yzf's run hot make sure you dont idle it for long times, because you need air going into the raiator to cool the coolant...

Posted on Mar 01, 2009

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Water pump

Posted on Jan 29, 2009

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