49cc Chinese scooter headaches, won't start By nixadm (Read 7,059 times)

[nixadm]

Hello,

I am really frustrated with this scooter, It was sitting for awhile in a garage, I bought a new battery, new carb, new cdi, new coil, new starter, new petcock, new spark plug.

It ran for about 5 minutes then bogged down and flooded, that's when I ordered and replaced the petcock, now I can't get spark.. I just tried a new plug too.

Its a VIP future champion,

Any suggestions?

Thanks in advance

[sprocket]

Well if it sat for longer than a couple of months the carb is probably plugged and the jets need to be cleaned...

Check the green ground wire that runs from the engine to the frame...hold the spark plug against the valve cover metal and then also try it a clean part of the metal frame.... if it sparks on the frame then you know the engine ground is bad...

Check all the connections to the plug boot and the ignition coil...

Sounds like you have a number of problems.. probably electrical and fuel...need to address them one at a time...

[Alleyoop]

How long was it sitting in a garage?

Take the coil off the Plug on the motor and stick the old plug on the coil and Ground it to the Frame and crank it and see if you get sparks. If you do then ground it to the engine and see if you also get spark there as well. If you only get sparks when grounded to the frame then the Ground wire from the frame to the engine is not making a good ground.

If no spark from frame or engine, check if the kill switch is off and it is on the center stand(some have a kill switch on the sidestand so make sure that is up).

If all is good there then You need to start traceing back which part is bad. 1. Put back the Old Coil and try it.
1. Put back the Old Cdi and it .
You can also PULL the KILL WIRE from the CDI just in case the Kill Switch is bad.
Here is the Wire to Pull off the CDI to make sure the Kill switch is not causeing the no spark.
Alleyoop

[nixadm]

Sept 4, 2011 14:00:19 GMT -6 Alleyoop said:

How long was it sitting in a garage?

Take the coil off the Plug on the motor and stick the old plug on the coil and Ground it to the Frame and crank it and see if you get sparks. If you do then ground it to the engine and see if you also get spark there as well. If you only get sparks when grounded to the frame then the Ground wire from the frame to the engine is not making a good ground.

If no spark from frame or engine, check if the kill switch is off and it is on the center stand(some have a kill switch on the sidestand so make sure that is up).

If all is good there then You need to start traceing back which part is bad. 1. Put back the Old Coil and try it.
1. Put back the Old Cdi and it .
You can also PULL the KILL WIRE from the CDI just in case the Kill Switch is bad.
Here is the Wire to Pull off the CDI to make sure the Kill switch is not causeing the no spark.
Alleyoop

I was getting spark on the frame, but now I'm not getting any, I check all the ground/earth connections, and reconnected them.

Center stand is up, I've also tried the old parts, coil, cdi, plug.

I'll go try to bypass that kill switch wire now.

Thanks

[nixadm]

could be part of my problem, the wires going into the cdi have really bad connections on the crimped metal sleeve., a few don't look like their making good contact with the cdi pins.

off to radio shack to find some more.

[Alleyoop]

Great!! Sounds positive also check the wires going to the COIL, the two wires and connectors could also be not making good contact onto the coil.
Alleyoop

[sunlproblems]

lust squeeze them shut some i did mine that way alley told me or someone to so i did and solved my problem