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Post by npgilbertson on Oct 14, 2019 20:15:50 GMT -5
07 chinesian gy6 150 with a 1p57qmj motor. I've installed an aftermarket cdi, exhaust, and carburetor. Idled rough, but once moving it ran perfect. Doing 60-65mph and suddenly, lost power. Went to about 30-35mph with a partial amount of throttle applied AND manual choke on. Won't start or run (just cough) with choke off. Opening throttle cuts motor off completely when running, but it does rev fine at an idle as long as it's short bursts. Found vacuum hose that came unplugged, but that did not solve the issue. I thought immediately fuel issue, threw a 1.5psi fuel pump I had spare inline, flicked it on with a switch and tried starting it. Nothing changed. I'm lost here now. I will try cleaning the carb, but with less than 600 miles on the carb I wouldn't expect it to have gummed up somehow. I am afraid maybe the new aftermarket exhaust maybe caused some valve damage do to being basically straight through. Any additional ideas/thoughts would be most greatly appreciated!
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Post by tortoise on Oct 14, 2019 20:44:22 GMT -5
manual choke . . 1.5psi fuel pump Post a link to the replacement carb . . typical constant velocity carbs do not have a manual choke, just an electric enricher? Was an electric fuel pump installed because this scooter has a floorboard level gas tank? |
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Post by npgilbertson on Oct 14, 2019 20:51:46 GMT -5
No. Pump was to see if there was a fuel flow/delivery option. It is a rear of the seat style gas tank. Manual choke as I know the electric ones can and eventually do stick. I'm okay with letting it warm up on choke for a minute or two before I pop choke off. Carburetor: www.amazon.com/dp/B07N4LLC77/ref=cm_sw_r_cp_apa_i_wxsPDb0J785A2Also, about 5300 miles on the motor. |
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Post by npgilbertson on Oct 15, 2019 16:10:12 GMT -5
Found a very likely culprit, looks like the clip for the needle was eaten by my hungry gy6. Will fix and update results!
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New Rider
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Post by npgilbertson on Oct 15, 2019 18:44:16 GMT -5
70mph on the interstate. She's up n running better than ever. I still can't understand how the clip comes off though!
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Post by chewbaca on Oct 20, 2019 8:04:34 GMT -5
well... if you want to cheap out when making parts you can skip the hardening process when making spring clips
it looks the same and for a little while it works the same
but vibration will over time beat them loos
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