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Yamaha MX & Off-Road Dirt Bikes
Need HELP with '80 Yamaha DT100G Fuel System
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[QUOTE="modifieddriver, post: 1211805, member: 78799"] OK, here's the update. I looked in the bike owner's manual. It says I have a Mikuni VM22SS carb. The carb has a 3A3 60 stamped on it. I disassembled the carb again and removed the brass emulsion tube that the main needle runs up and down in. It was plugged up deluxe. Cleaned it up and made sure all 5 small holes were clear. Recleaned and reassembled. So, now it starts with a little help from ether and idles pretty good. BUT ........ I'll give it some throttle and it'll do OK, but then increases RPMs like crazy and stays there. This is with the throttle slide valve is still in the idle position!!!!!!!! The safety switch and ignition switch won't turn it off until I crack the throttle!!!!!!!!!!! I still think the small hoses attached to the carb are messin' me up. There's a brass fitting on the engine side of the throttle slide valve. I hooked the line from the Auto-Lube pump to it. There's another brass fitting fon the float bowl. I attached tubing to this and ran it up straight. Then there's a plastic fitting for another small line on the air inlet side of the carb just before the throttle slide valve. Where does this this small tubing go??? I'm referring to this carb, as, "The Carb From Hell" I'd appreciate some additional technical assistance. [/QUOTE]
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Yamaha MX & Off-Road Dirt Bikes
Need HELP with '80 Yamaha DT100G Fuel System
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