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Yamaha MX & Off-Road Dirt Bikes
Help needed with my IT400
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[QUOTE="Pantaz, post: 1403061, member: 27060"] When I picked up my 1980 RM400 a few years ago, it too would not run with the old, clogged up filter. Cleaned the carb, installed a fresh filter, and it HAULS! I imagine your Yamaha should make comparable power. The pipe can have significant effect if it's been severely modified. Do you know original (factory) jet sizes and needle setting? Any idea if the cylinder has been ported? [/QUOTE]
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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
Help needed with my IT400
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