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I ride tight woods in Florida. I over heated once or twice then started using Engine Ice, no more problem. My questions, has anyone tried the Boyesen impeller and pump housing? Do they really flow 40% more coolant? Does anyone have any facts on it's use in the CRF? :cry:

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I was curious also. I have one on order, I will post results if it ever comes in.....

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I put a boysen impeller and cover in my '04, I live in southwest FL. It does appear to run cooler, I run engine ice. I read in MXA magazine, about not letting the bike idle for longer than a minute. I never let the bike idle and I never lose coolant from the overflow, so there must be something to it!

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