More Juice for Quicker Starts YFZ450 Battery Fix - Yamaha YFZ 450 Battery Upgrade - ATV at Off-Road.com
More Juice for Quicker Starts YFZ450 Battery Fix
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 Posted Aug 01 2009 09:53PM
I had the same problem with my 07 yfz450 and i changed it out with a 400ex battery from yuasa,BUT my charging system didn't have a problem with charging. In fact it boiled the acid out of the batterys. the guys at the shop said to run the fan constant with a toggle switch and turn the lights on high. the battery lasted three rides and boiled out. I guess now i get to buy a stator and regulator to see what that does
 
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