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Yamaha MX & Off-Road Dirt Bikes
Fuel mixture on 79 Yamaha IT250
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[QUOTE="raven11, post: 1341765, member: 104616"] I was wondering what the best fuel ratio is for the 79 Yamaha's. The guy I got the bikes from said to run 50:1 but the book calls for 20:1. That seems like a HUGE difference to me. I've been running 40:1 with lots of smoke. And I've noticed that the bikes run better and smokes less when the mixture is richer towards the 50:1 range. I want to make sure if the book calls for 20:1 that running it 50:1 doesn't mess the bikes up. What mixture do you guys run? [/QUOTE]
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Yamaha MX & Off-Road Dirt Bikes
Fuel mixture on 79 Yamaha IT250
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