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YFZ vs YZ compressionThis is a discussion on YFZ vs YZ compression within the ATV/UTV - Yamaha forum, part of the ATV/UTV Forums category; I don't have my YFZ any more, but yes at the time, I checked my valves. I kept the mod ... |
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#21
02-26-2007, 07:58 PM
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 Re: YFZ vs YZ compression I don't have my YFZ any more, but yes at the time, I checked my valves. I kept the mod for about 6 months and after it cost me two different races because it wouldn't start fast enough, I finally changed it back and had no issues after that. If/when I buy another one I would try the mod again, as I know many people who didn't have any issues.  |
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#22
02-26-2007, 08:42 PM
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| Re: YFZ vs YZ compression I'd wait until they go FI and do a little more on the Geometry I'm a die hard Yamaha rider. But I rode a LTR the other day and it was nice the throttle was crisp. I run an air fuel ratio pretty straight line at 13.8 and the ltr felt much more responsive. It had a lot of mods But Yamaha better step up soon. |
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