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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
250f mod options
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[QUOTE="thump chump, post: 141779, member: 23827"] [b]Race Gas in Yamie 4-strokes-[/b] Ahhh- but I have this info straight from the horse's mouth at Yamaha- Ed Scheidler. I was told that running race gas actually caused the valves to gum up and affect performance. One possible caveat though- this was on the YZ400. I have not heard this from Ed regarding the 250f. But I would presume the same holds true due to the similarity in head design. But at the same time, does a high compression piston neccesitate the use of race gas as bumping up the compression in a 2-stroke does? I would believe so, but would like to hear from someone who has direct experience in this area. [/QUOTE]
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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
250f mod options
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