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Yamaha MX & Off-Road Dirt Bikes
Sunoco 105 Octane ??
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[QUOTE="blakemx124, post: 61758, member: 21855"] Rich, when you said that I would need to run richer jetting to run the VP MR-2 when coming off of pump gas, would that be a main jet only change or also possible pilot and needle changes as well? Does MR-2 give a couple of horsepower gain if jetted properly? Is there a big difference in performance between C-11 and MR-2? Also you also mentioned a possible retarding of the timing with MR-2. If I experimented with timing, would I have to do anything with the throttle position sensor on the carb (I hope not!!)? I wish I could try the Phillips fuel but I don't believe it is available near my home. The VP fuel is available 5 miles down the road so my choices are limited. And my final question what do you think of octane boosters added to pump gas to achieve performance results at a cheaper price? Thanks so much for your help and answers to these questions. ------------------ [/QUOTE]
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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
Sunoco 105 Octane ??
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