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Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
1979 YZ400
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[QUOTE="weimedog, post: 21242, member: 20655"] Go to a junk yard and see if you can find a smaller carb with the same basic outside dimensions. Jetting shouldn't take too long to figure out. Wonder if there is a way to have a thicker base gasket. Does stuff from an IT bolt on? Anyone know Yamaha's enough to know? A heavier fly wheel would really help. Maybe an IT has one. Can always retard the timing a bit also. Putting a larger rear sprocket to gear it down will make it snappier but easier to ride in the tight stuff. If you are in the Colorado area there are two junk yards with a LOT of that vintage YZ Yamaha stuff. One in Loveland and one in Longmont. Guess they were popular here. [/QUOTE]
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Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
1979 YZ400
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