Question about 2005 Kymco Stryker 125

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I am trying to fix a kymco 90 cc quad. The fuel system is ok. The machine is getting spark. The listing below does not allow for the Kymco 90 Mongoose to be selected.

Posted by tdetwiler on

  • Anonymous Mar 30, 2014

    Kymco 50 CC people moped stops running. Need to drain gas from carburator and gas line



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al at yahoo

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Check your safety switches

Posted on Sep 13, 2009


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1 Answer

Kymco Midi XL slows down then speeds up. Battery ok

Hi, Kenneth and the usual suspects are:
1. Extremely lean fuel mixture.
2. Dirt, rust, water, or ethanol sludge in the fuel system.
3. Sticky throttle cables.
4. Multiple carburetors not in synchronization.
5. TPS sensor out of adjustment or faulty.
6. Wrong spark plugs for the type of service.
7. Throttle bodies not in synchronization (FI)
8. Faulty O2 sensor.
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For more information about your issue and valuable "FREE" downloads that you will need please click on the websites below. Good luck and have a nice day.
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Kymco Mobility Scooter Parts Spares WheelieGoodMobility co uk

Btw, I’m available to help over the phone in case u need at

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1 Answer

I have a Kymco Mongoose 90 that will not idle when the motor is warmed up.

does it idle up and down at will,,,, and gets worse when hot? (if yes - the valves are too tight!!) maybe a little hard to start...??

The carb may need a professional cleaning!

Jul 25, 2014 | Kymco 2010 Mongoose 90 R

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My quad keeps stauling on me i think its cause it could be flooding,,need to fix this problem asap

flowt is sticking or the pin could be bent / jet in carb blocking or blocked fuel filter
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Ckeck spark plug,batterie,put super fuel with a hight level of octane its gonna clean ir engine .

Jul 21, 2011 | 2007 Kymco Agility 50

1 Answer

Got spark, got compresson, good fuel but still cant get it to start??

Hi, Try taking out the spark plug and dripping a little fuel down the cylinder. Then, replace the plug and give it a try. If there is a spark the engine has no choice but to start. From here, you can determine that it's a fuel delivery problem and the carb and fuel filter need to be inspected.

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