I have a skyjet 50cc scooter and am having problems starting it it makes a noise a few times then nothing seems like battery is dead but it is fully charged its a sonik skyjet

Flat battery. Unless the battery is fully 12.2 - 12.6 volts, it won't start with the electric start. If the voltage goes below 11 volts, there is not enough power for fuel injection and ignition assuming your mystery scooter has fuel injection. Connect it to a battery charger for 8 hours.

dead battery or a fuse gone ! try turning on indicators , horn , lights ! does the side stand or brake lever have a stop switch on them ? P...

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.

There could be a few different reasons why your 50cc Apache quad has suddenly stopped starting after starting with the kick start a few times. Some possible causes include:

1. Fuel issues: Make sure you have enough fuel in the tank and that the fuel is fresh. Also, check the fuel filter to ensure it's not clogged.
2. Air filter: A clogged air filter can restrict airflow to the engine, making it difficult to start. Check the air filter and clean or replace it if necessary.
3. Spark plug: A fouled or worn spark plug can prevent the engine from starting. Check the spark plug and replace it if necessary.
4. Battery: A weak or dead battery can prevent the engine from starting. Check the battery and charge or replace it if necessary.
5. Compression: low compression can cause the engine to not start.
6. Choke: Make sure that the choke is working properly.

It's possible that one or more of these issues may be causing the problem. It is recommend to check the owner's manual for troubleshooting and further guidance. If the problem persist, it is best to take it to a qualified mechanic for diagnosis and repair.

If your 2002 Roketa 50cc scooter will not start, there are a few potential causes to consider:

1. Fuel issues: Make sure you have enough fuel in the tank and that the fuel is fresh. Also, check the fuel filter to ensure it's not clogged.
2. Air filter: A clogged air filter can restrict airflow to the engine, making it difficult to start. Check the air filter and clean or replace it if necessary.
3. Spark plug: A fouled or worn spark plug can prevent the engine from starting. Check the spark plug and replace it if necessary.
4. Battery: A weak or dead battery can prevent the engine from starting. Check the battery and charge or replace it if necessary.
5. Compression: Low compression can cause the engine to not start.
6. Starter: If the starter motor is not functioning properly, the engine will not turn over.
7. Choke: Make sure that the choke is working properly.

It's possible that one or more of these issues may be causing the problem. It is recommend to check the owner's manual for troubleshooting and further guidance. If the problem persist, it is best to take it to a qualified mechanic for diagnosis and repair.

You have a bad ignition module.

need to clean the carb with foaming carb cleaner

Scooter Troubleshooting Scooter won start All about Scooters

http://scootermasters.com/manuals/02-05%20Zuma%20SM.pdf

https://www.youtube.com/watch?v=PBpS_KTQgN0

Hopefully, one of these links will help.

no, if it starts on the kicker petrol is not an issue, could be battery though