I have a 2004 geely scooter that has rescently been loosing power takes forever to reach 20-25mph. The engine is a brand new D1E4QMB geely style 2stroke 49.5cc engine. It's a dog to say the least. Thought it was a restricted muffler not the case. What else could it be??????????? can you help me with this issue?????????????

When you buy Chinese junk, you will always be stuck finding parts. :>D Some suppliers here.

https://www.google.com/search?q=Geely+scooter+JL50QT-21+parts

..

Possible similar model manual, saved on Internet Archive site from years ago.

https://web.archive.org/web/20180212204225/http://www.livefromhawaii.com/geelyscooters/OwnersManual.pdf

The things that might be or are robbing your car of power are the same things that might affect any car and only thoroughly investigating the symptoms will reveal the cause.

It is very rare a car loses power uphill, though it is theoretically possible, most likely the engine power is low all the time and it is when climbing a hill the fact reveals itself.

The fault could be anything from low fuel pressures to a strangled exhaust...

sounds like the controller is dead or has been knocked loose.

If you have a friend who wears a hearing aid with a telephone pickup coil, the test is very easy. Have your friend switch the hearing aid to the telephone position, then listen to the engine while it is idling with the clutch disengaged. Accelerate the engine and let it return to idle. Your friend should hear a rapid ticking noise from the spark plug and a whine from the alternator that goes up in pitch when the engine runs faster. If he hears the ticking but doesn't hear the whine even at low speed, have him listen closer to the battery or alternator. If he still doesn't hear it, the alternator is probably not working at all. (I use this technique quite often to find ignition or alternator faults.)

If you have a voltmeter, measure the battery voltage when the scooter is not running. It should be at least 11.8 Volts. Start the scooter, and with the clutch disengaged, speed up the engine while monitoring the battery voltage. It should increase with engine speed, up to 14 Volts. (Do not run the engine for a long time at high speed with the clutch disengaged. Lack of cooling airflow or overspeeding may damage the engine.) Alternatively, turn on the headlight and see if it gets brighter with increased engine speed. If the battery voltage stays low and the headlight doesn't work or is dim at any speed, the alternator is bad.

The usual failure modes causing low or no output are a faulty regulator, worn brushes, or failed rectifier module. It is sometimes cheaper to repair the alternator than to replace it, if you know how to take it apart and put it back together. (The biggest trick is to use the brush access holes to pin the brushes away from the commutator during assembly; once everything is together, remove the pins to let the brushes contact the commutator. I use a pair of small nails for the pins.) You may be able to purchase a rebuild kit from an automotive or motorcycle parts store.

Note: if most of your scooter operation is at low engine speed, the alternator may not turn fast enough to fully charge the battery. If it is not practical to occasionally run at a higher speed, you may need to obtain a 12 V battery charger (at least 1.5 A output) to fully charge the battery when the scooter is at home. Also, if you receive an empty new battery and have to pour the acid in to use it, follow the directions and let the battery sit for several hours before charging it, then install it. If you don't do this, the new battery won't last very long.

adjust mixture screw and get back to me just fiddle with it buddy

i did

1. http://www.livefromhawaii.com/geelyscooters/

2.
http://www.livefromhawaii.com/geelyscooters/OwnersManual.pdf

Good luck!!

my boyfriend got a geely scooter 125 i think it is and he had exactly same problem, tappits need set to 0.5 and try cleaning the air filter only problem he got now is his indicaters are totalled and the geely site is closed down :(

I believe that is the alarm telling you to add more oil to the resevior. I have a 2003 geely as well, and my owner's manual says there is an alarm for when the oil is low. Use a good 2 cycle injector oil from a motorcycle shop to get the best performance and avoid problems.

Hope it helps,
Criss