New 80cc no start.

[Mike Bailey]

Just trying to eliminate the cdi being the issue by trying the coil I had.

 

[crassius]

CDI makes spark and also controls timing of spark - coil alone will not do that

 

[Mike Bailey]

See that I didn't know. I thought it was controlled by the magneto.

 

[KCvale]

The Capacitor Discharge Ignition (CDI) fires your plug, but you can strap on your car coil for decoration ;-}

 

[Mike Bailey]

The Capacitor Discharge Ignition (CDI) fires your plug, but you can strap on your car coil for decoration ;-}

Oh you got jokes. Haha. I should have searched more on the definition of cdi.

 

[Mike Bailey]

Ok so I did the wire repair to the cdi and i now have 5.9ish ohms. Cool. Still take it for a spin and no start or spark. So im going to check my magneto and see if it's a faulty ground or something. I took the cover off the magneto and it looks weird compaired to everyone else. Mine has no eyelet for ground-should I make one? I'm going to clean the paint off the back of the magneto and add a ground to the welded spots.

 

[Mike Bailey]

Ok. I took the plug out of the head and spun the engine over with my impact and im getting 30 volt from the mag and with the coil connected and a plug at the end there's no spark so I'm betting on the cdi being bad. Guess i should expect this from these Chinese engine kits?

 

[MotorBicycleRacing]

I took the cover off the magneto and it looks weird compaired to everyone else. Mine has no eyelet for ground-should I make one?

I'm going to clean the paint off the back of the magneto and add a ground to the welded spots.

Your Magneto is the latest upgraded design and isn't weird.

Don't mess with it.
As long as the Mag reads about 320 ohms or more between the blue and black it is good.

Yes, your black painted engine case is probably interfering with the ground.

 

[Mike Bailey]

Your Magneto is the latest upgraded design and isn't weird.

Don't mess with it.
As long as the Mag reads about 320 ohms or more between the blue and black it is good.

Yes, your black painted engine case is probably interfering with the ground.

Oh really? Well awesome for me then! Still will need a cdi since there's no volts nor spark. Thanks for the info!

 

[Human]

Before you go replacing your CDI, disconnect your kill switch then try to fire your engine up again.
Make sure that your kill switch wires are taped up good and have no metal to metal contact.

If it still does not start then get another CDI, if it starts then replace the kill switch with one from nappa or autozone or advantage auto parts or anywhere you can get a kill button/switch