Sputtering at High Speed, TBR7

TxTaoRider · 04-21-2022, 05:44 AM

A couple things to check. As mentioned earlier, the main jet... is it a mikuni, a kehin, or a knock off. The mik and kehs use a different numbering system. I use the mikuni.

Is your gearing still stock? If so they'll just run past the power peak fast at like 50mph... which brings the next question... did you confirm your speedometer accuracy? They are off some on a good one, off allot on a bad one. Confirm it with your phone.

Last, replace the spark plug, check the gap, the stock one is known for being weak.

Since your bike doesn't have a tach you can't really tell the rpm it's breaking up at.

04-21-2022, 05:44 AM	#6
TxTaoRider Join Date: Oct 2020 Location: Flower Mound Texas Posts: 904	A couple things to check. As mentioned earlier, the main jet... is it a mikuni, a kehin, or a knock off. The mik and kehs use a different numbering system. I use the mikuni. Is your gearing still stock? If so they'll just run past the power peak fast at like 50mph... which brings the next question... did you confirm your speedometer accuracy? They are off some on a good one, off allot on a bad one. Confirm it with your phone. Last, replace the spark plug, check the gap, the stock one is known for being weak. Since your bike doesn't have a tach you can't really tell the rpm it's breaking up at. __________________ 2021 Tao Tbr7 - "Lucille" Mods so far- Brozz swingarm, 21" front rim (Bridgestone Tw302 rear/Dunlop D606 front tires), Digital gauge cluster, pz30b pumper carb, after market hand guards, aftermarket brake and clutch levers, round fold away mirrors, Fly handlebars shortened slightly, 13t front sprocket 2009 Q-link Legacy 250 1982 Suzuki GS1100ES - "Jolene"
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