Scooter sometimes won't go full speed.

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Scooter sometimes won't go full speed.

Postby dhabicht1 » Fri Jul 19, 2019 12:10 pm

Replaced the carb with a Chinese model which was working well. Now sometimes when I ride speed won't go past 40 full throttle. All of a sudden speed will pick up like normal. Lubricated diagram slide. Spark plug was changed and fuel filter, checked wiring and everything I can find. Seems like fuel related but it is intermittent. Any thoughts would be appreciated.
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Re: Scooter sometimes won't go full speed.

Postby scootcat » Fri Jul 19, 2019 4:50 pm

Maybe water in gas, does tank look rusty?
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Re: Scooter sometimes won't go full speed.

Postby zozman » Fri Jul 19, 2019 8:52 pm

Respectfully, those Chinese carburetors are not good. I advise you to replace it with an original Honda Keihin carb.


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Re: Scooter sometimes won't go full speed.

Postby dhabicht1 » Sat Jul 20, 2019 8:04 pm

Thanks for the suggestions, the slide was sticking still, apparently silicone spray doesn't work so well! PBlaster did the trick
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Re: Scooter sometimes won't go full speed.

Postby birdmannn101 » Sun Jul 21, 2019 7:31 am

dhabicht1 wrote:Now sometimes when I ride speed won't go past 40 full throttle. All of a sudden speed will pick up like normal.


Normally when a bike or scooter won't accelerate past 40 MPH it is usually the air filter system where someone put a pod filter on the carburetor which changed the airflow to the carburetor and did not change the jets or the throttle needle height. Since you say that "All of a sudden speed will pick up like normal." - This is NOT the case. I would try looking at the carburetor like the other members suggested. Good Luck.
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