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Thread: 1983 Yamaha TT600K

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  1. #1
    Calkins Guest

    Default 1983 Yamaha TT600K

    I'm looking to redo my whole dirt bike. I'm going to install a 673cc big bore, raise the compression, cam, port the head, possibly add larger valves, maybe larger carbs, etc. You know, just a SMALL upgrade! This bike will be used on backroads, creek beds, open fields, and the such. The factory carb setup is a round slide 38mm primary and a secondary that is 38mm with a vaccum round slide AND a mechanical butterfly. I want to replace the weird carb setup with a pair of regular carbs. I'm thinking maybe a pair of Edelbrock flat slides. With all the upgrades, should I up-size the carbs? If so, how much, 40mm?
    Last edited by Calkins; 03-19-2009 at 08:52 PM.

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