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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
How To Tune DOWN A 2 Stroke.. ?
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[QUOTE="dirt bike dave, post: 1322827, member: 18302"] Make the jetting too rich. Over-oil the air filter. Put on a very restrictive spark arrestor/silencer. Add some sort of throttle stop like Yamaha puts on the stock WR450 four stroke. If the problem is the bike just has too much 'hit', a flywheel weight or some attention to jetting may smooth the power delivery and make it easier to ride, without costing any peak power. [/QUOTE]
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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
How To Tune DOWN A 2 Stroke.. ?
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