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Water pump not working?


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Just swapped my nozzle main on my 02 cr250 for the s7 from the s8 and been playing with the jetting for a few days now, went from a 380 main to a 360 and now at a 370, bike seems to be running fine then the rpms start to climb on there own? Then starts to leak coolant from the over flow tube Iam at a lost for what to do next any info or leads to check out would be greatly appreciated

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Just swapped my nozzle main on my 02 cr250 for the s7 from the s8 and been playing with the jetting for a few days now, went from a 380 main to a 360 and now at a 370, bike seems to be running fine then the rpms start to climb on there own? Then starts to leak coolant from the over flow tube Iam at a lost for what to do next any info or leads to check out would be greatly appreciated

what altitude and ambient temperature are you running? Edited by dirt_e_rider
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