Question about 2002 Hyosung GF 125

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Problem with running of scooter

The scooter ticks over fine but when you pull the accelarator the engine dies, but not all the time, very inconsistant
Have been told it may be carb set up? not sure
Hyosung hyper scooter 125cc

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Sounds like it is running too lean. Look for an air leak around the carburettor manifold.

Posted on Jun 29, 2009

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Posted on Jan 02, 2017

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My scooter dies when i come to a stop with the back breaks held...how can i keep it running at a stop light


Automatic clutch or manual? Can be for two reasons if clutch related, the tick over is too high and the engine is connecting with the braked wheel. Or the clutch is badly adjusted and not disengaging.

Can also be warped clutch plates, but let's not go there.

Could also be the carburettor needs cleaning, (idle jet), or simply that the tick over needs speeding up. There is a screw on the side of the carb, but you have to make sure it is the right one as they is also a mixture screw. The idle screw is attached to the throttle linkage.

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I looks like your oxygen sensor,Try to disconnect and then see what the car does?Let me know.You may need to adjust the fuel mixure,seem it is running a little rich that is why the car in idle goes up and down.
proporsche@yahoo.com

proporsche

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Try pulling out your choke and not reving the engine if your engine fails to stay started depress the
choke and try again but this time jump on your bike and don't give the scooter two much gas and run it around a little bit, you might need to place some premium gas in it. I't could well be bad gas.
How long has the scooter been sitting?

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If your going approx 40mph or better and the vehicle is at operating temperatures, when this happens, its the Torque Converter Clutch Solenoid(TCC). Sometimes this solenoid will give you a code. But you should get a scanner and pull the codes out anyway. if it turns out to be the TCC get the Shop manual this is a pretty easy fix.

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