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Yamaha MX & Off-Road Dirt Bikes
Sunoco 105 Octane ??
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[QUOTE="blakemx124, post: 61753, member: 21855"] Rich Rohrich, I know from previous posts, you seem very knowledgeable on race fuels. We presently use VP C-11 in our 250F on race days and pump gas for practice and no jetting changes. The throttle resonse is so much better with the C-11 as well as the overall feel of the motor. I'm curious about the VP MR-2 that the factory guys run. I can get it from the same distributor at the high cost of $11/gallon. It's one of VP's oxygenated fuels and is said to actually increase horsepower as well as throttle response. If I used this fuel, it would only be on race days (too expensive for all the time). My questions are can you give me some insight on the increased horsepower claims, and from your experience,will I need to jet differently when switching back and forth from MR-2 to pump gas. Thanks in advance for your answers. If there is anyone else that has any experience with the VP MR2 please comment. Thanks!! ------------------ [/QUOTE]
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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
Sunoco 105 Octane ??
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