no spark

[woody]

trying to get my newly rebuilt lammy engine going but theres no spark , ive tried 2 different flywheels an af lightened one and a scooters india one, a brand bgm stator and a scoots india one which came of a running bike its also got a brand new bgm red cdi new lead new plug new cap etc etc , its also earthed from the engine to the frame , the rectifier is also . Anybody any ideas of what else to try ?

[Andy W]

Try disconnecting the outer green wire on the CDI (from the main loom), this will eliminate the ignition switch as this can cause issues.

[shocky]

see if your actually getting a spark from the green stator wire it will be weak then add the cdi leaving off the ign switch green as previously stated

[woody]

Its not connected mate

[woody]

Only seem to be getting a spark from the yellow wire when trying direct onto metal and thats with both stators and flywheels

[mick1]

i'm wondering if your flywheel is lined up correctly with the stator, too far in/out and missing the pick up ?

[woody]

I've tried 2 different flywheels ?

[mick1]

I've tried 2 different flywheels ?

Is the mag flange in too far/not far enough, is the stator sitting proud/etc

You'll be getting a PM off Muppet shortly, he just PM'd me by mistake

[coaster]

Try a different CDI, I know you have a new BGM one but still worth checking. Also, you don't have an Augusto fitted do you? If so, try bypassing it.

[lambro]

Try disconnecting the outer green wire on the CDI (from the main loom), this will eliminate the ignition switch as this can cause issues.

Assuming the outer is the loom one, sometimes they are switched around.