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Yamaha MX & Off-Road Dirt Bikes
Rich, 250F questions
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[QUOTE="High Lord Gomer, post: 1308511, member: 16469"] Thanks, Rich! I learned a lot from that. I'm still not too clear on why you would leave the intake valve open at all after BDC. It would seem to me that with the piston starting back up, you would be forcing air/fuel back out the intake valve, or does the momentum of the mixture flowing continue to fill the chamber even though the piston has started back up? [/QUOTE]
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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
Rich, 250F questions
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