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Post by crowrobot on Oct 29, 2013 13:15:16 GMT -5
I tried taping the leaks and tuning the screws, but nothing seems to change the performance much. The screws changed the rpms, but they were still too erratic for me to tell if I was helping at all. While doing this I noticed one of the tubes from the carb isn't hooked up to anything. It just goes about 1 ft. and ends. Could this be the problem? Is this the vacuum port? Where should this tube go to?  |
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Post by crowrobot on Oct 27, 2013 23:19:08 GMT -5
alleyoop: thanks for the link. I'll try that tomorrow and see if it helps. I think this might be the solution, or part of it, because the engine always stalls when I give it gas (unless the choke is on):
"1. Give the throttle a quick twist:
A. If the rpms drop below idle speed, then recovers (or stalls), it is [red]RICH[/red] —Turn the Air Mixture Screw Counter Clockwise 1/8 turns at a time and go to #1."
Moat: I didnt know the carb had to be air tight where the cables enter. Do you know where to buy those rubber boots?
Also, the choke cable is kinda loose and doesn't operate very well. Am I missing another piece that would make it fit more snugly?
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Post by crowrobot on Oct 27, 2013 22:27:46 GMT -5
I took that photo while I was replacing the throttle cable, so I had the spring and stuff out of the carb. here are some more pics:    |
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Post by crowrobot on Oct 27, 2013 20:29:32 GMT -5
I just bought a used 2005 50cc QINGQI QM50T, and I need some help identifying and fixing some problems. I'm new to scooters, so I apologize in advance for any amateur mistakes.   I bought it for $250, replaced the throttle cable, and now the scooter goes 30 mph on flat ground. It gets from 15 mph to 30 mph really quick, but if I let it come to a complete stop the acceleration is piss poor. It will not idle stably, and dies almost immediately after I come to a stop. I always have to use the choke while driving it. After it warms up I can push the choke in, and it will idle ok, but if I give it any throttle it sputters and dies.Any idea what is wrong with it? or how to fix/tune it up? Thanks for the help. |
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