Question about Transport Schwinn Rechargeable Portable Scooter

4 Answers

I have a 50 cc scooter it keeps cutting out on me

I have to some times hold the brake on to keep it running but it cut out 15 times on me last night when you swith the ignintion on some times the fuel gage will work other times it wont please help

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  • billyhulluk Mar 16, 2009

    my jinlun qt50 starts up, runs for a about 30 seconds, cuts out as if no fuel, then it comes through and runs again for about another 30 to 45 seconds but sluggishly, runs out of fuel (empty firing on electric start) then starts again and runs slowly but builds up to near ok until its left again for a period of time. changed the fuel filter only so far. anyone figure out what it could be as i dont have a clue and dont want to try strip it without first having some idea please

  • SLP101 Apr 01, 2009

    I have exactly the same problem - it has only started happening in the last week but is identical. Can anyone help!!!

  • jennuhn
    jennuhn Jul 18, 2012

    replace cdi and coil

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Check the vacuum line that connects to the petcock valve. It's possible that there is not enough vacuum to open the valve and provide fuel flow. The petcock valve is a rubber diaphragm that opens a valve in the presence of suction. You can test the valve by sucking on the tube and seeing if fuel flows from the other tube. If not you may have a bad valve. If the valve works then you may have a clogged float valve. Sometime debris clogs the float valve and the only fuel you have to run on is what's in the bowl. Once the bowl is empty the engine dies and the bowl is refilling too slowly to sustain the engine.

Posted on Sep 11, 2009

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Check the connections and wires under the front headlight few are probably loose or too tight since they don't work all of the time.

Posted on Jan 14, 2009

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Hi i have a superbyke m-ped 50cc qmb139 an ive had the same problem ive done everthing to try fix includeing changeing carb then today a freind suggested checking my valves my exsaust valve was too tight so i put it at the right gap an now it runs great doing 40mph no probs on flat so try your valve gaps

Posted on Nov 07, 2009

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I need a diagrame of the placement of the fuel lines on the pecock can anyone help

Posted on Jan 30, 2010

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4. Take off from a dead stop should be smooth and easy throttle applied avoid excessive throttle snaps.
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8. Keep chain/belt properly adjusted.
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10. On long trips use freeways or flat straight stretches of highways rather than city or rural routes avoid hills and mountains when possible.
11. Keep your engine clean, dirt and grease/oil hold in heat.
12. A full-face helmet is more aerodynamic than other types of helmets. Any other clothing that decreases your aerodynamic should be reconsidered.
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14. Use high-quality fuel using low-quality fuel can cause sludge in your fuel injectors.
15. Keep warm up time to a minimum get off the choke ASAP.
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For more information about your issue, please visit the websites below. Good luck and have a nice day.
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1. Proper tire inflation as per MFG. specifications wheels should be balanced and spokes tight.
2. Oil and coolant levels maintained at full marks, low levels produce excessive heat that causes the engine to work harder and reduces efficiency.
3. Keep extra weight to a minimum.
4. Take off from a dead stop should be smooth and easy throttle applied avoid excessive throttle snaps.
5. Smaller windshields get better MPH than large ones, wind resistance increases as a square of the speed at which you're traveling. So, for example, at 70 mph, wind resistance is double what it is at 50 mph (70 squared is almost twice as much as 50 squared). That will dramatically reduce your mileage. Keep that in mind while biking.
6. Keep idle time to a bare minimum or turn off the engine.
7. Re-jet carburetor with a smaller main and mid-range jet.
8. Keep chain/belt properly adjusted.
9. Avoid quick braking, hasty acceleration, high-speed driving, try driving the speed limit and keep a constant speed.
10. On long trips use freeways or flat straight stretches of highways rather than city or rural routes avoid hills and mountains when possible.
11. Keep your engine clean, dirt and grease/oil hold in heat.
12. A full-face helmet is more aerodynamic than other types of helmets. Any other clothing that decreases your aerodynamic should be reconsidered.
13. Any unnecessary bling on your bike is going to decrease fuel efficiency.
14. Use high-quality fuel using low-quality fuel can cause sludge in your fuel injectors.
15. Keep warm up time to a minimum get off the choke ASAP.
16. Motorcycles run best when their engines are maintained, and that includes making sure the air filter is clean, the spark plugs are fresh, the fuel filter is free, and the timing/valves are adjusted.
For more information about your issue, please visit the websites below. Good luck and have a nice day.
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1. Proper tire inflation as per MFG. specifications wheels should be balanced and spokes tight.
2. Oil and coolant levels maintained at full marks, low levels produce excessive heat that causes the engine to work harder and reduces efficiency.
3. Keep extra weight to a minimum.
4. Take off from a dead stop should be smooth and easy throttle applied avoid excessive throttle snaps.
5. Smaller windshields get better MPH than large ones, wind resistance increases as a square of the speed at which you're traveling. So, for example, at 70 mph, wind resistance is double what it is at 50 mph (70 squared is almost twice as much as 50 squared). That will dramatically reduce your mileage. Keep that in mind while biking.
6. Keep idle time to a bare minimum or turn off the engine.
7. Re-jet carburetor with a smaller main and mid-range jet.
8. Keep chain/belt properly adjusted.
9. Avoid quick braking, hasty acceleration, high-speed driving, try driving the speed limit and keep a constant speed.
10. On long trips use freeways or flat straight stretches of highways rather than city or rural routes avoid hills and mountains when possible.
11. Keep your engine clean, dirt and grease/oil hold in heat.
12. A full-face helmet is more aerodynamic than other types of helmets. Any other clothing that decreases your aerodynamic should be reconsidered.
13. Any unnecessary bling on your bike is going to decrease fuel efficiency.
14. Use high-quality fuel using low-quality fuel can cause sludge in your fuel injectors.
15. Keep warm up time to a minimum get off the choke ASAP.
16. Motorcycles run best when their engines are maintained, and that includes making sure the air filter is clean, the spark plugs are fresh, the fuel filter is free, and the timing/valves are adjusted.
For more information about your issue, please visit the websites below. Good luck and have a nice day.
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1. Proper tire inflation as per MFG. specifications wheels should be balanced and spokes tight.
2. Oil and coolant levels maintained at full marks, low levels produce excessive heat that causes the engine to work harder and reduces efficiency.
3. Keep extra weight to a minimum.
4. Take off from a dead stop should be smooth and easy throttle applied avoid excessive throttle snaps.
5. Smaller windshields get better MPH than large ones, wind resistance increases as a square of the speed at which you're traveling. So, for example, at 70 mph, wind resistance is double what it is at 50 mph (70 squared is almost twice as much as 50 squared). That will dramatically reduce your mileage. Keep that in mind while biking.
6. Keep idle time to a bare minimum or turn off the engine.
7. Re-jet carburetor with a smaller main and mid-range jet.
8. Keep chain/belt properly adjusted.
9. Avoid quick braking, hasty acceleration, high-speed driving, try driving the speed limit and keep a constant speed.
10. On long trips use freeways or flat straight stretches of highways rather than city or rural routes avoid hills and mountains when possible.
11. Keep your engine clean, dirt and grease/oil hold in heat.
12. A full-face helmet is more aerodynamic than other types of helmets. Any other clothing that decreases your aerodynamic should be reconsidered.
13. Any unnecessary bling on your bike is going to decrease fuel efficiency.
14. Use high-quality fuel using low-quality fuel can cause sludge in your fuel injectors.
15. Keep warm up time to a minimum get off the choke ASAP.
16. Motorcycles run best when their engines are maintained, and that includes making sure the air filter is clean, the spark plugs are fresh, the fuel filter is free, and the timing/valves are adjusted.
For more information about your issue, please visit the websites below. Good luck and have a nice day.
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