fe290 won't spark

[scottyb]

Originally Posted by crash12888

Scotty, I'm thinking that if you unplug the wire that comes from the cart harness that goes to the coil that will remove the kill circuit from the motor and tell you if it is a cart or motor problem.
That kill circuit and lower micro should not be hot, it's just a grounding circuit for killing the coil.

Crash, thank you that is what I have found with my NEW test light...circuit is grounded when closed and when you press the gas it is open =no current present which is what you are saying...HOWEVER I am still a bit confused because the connector it plugs to on the motor is grounded all the time... Is this the problem? I think this is why the motor won't try to start.

Originally Posted by roady89

Scotty, I belive I have that diagram if you'll wait a bit.

Thank you Roady I will wait.....kind of

[azboo]

Poor Scotty... he's not used to being the one waiting for answers.. he usually is the answer man.

[scottyb]

It is kinda fun These guys are being great help

[DOOmsman]

Ohm meter on that white wire you may be reading through a back feed, low oil kill that is stuck? I am just guessing

[scottyb]

I did unplug the cart from the kill circuit but the kill circut is still grounded. In fact always grounded as I checked with the key on, off, starter engaged? Is this the problem? I will try diconnecting the rev limiter from ground and see if she wants to fire the plug.
Anyone have test procedures for revlimiter and igniter?

[roady89]

This is 98-99 Carryall scotty. I can't find an 02 at the moment.

[crash12888]

Originally Posted by scottyb

I did unplug the cart from the kill circuit but the kill circut is still grounded. In fact always grounded as I checked with the key on, off, starter engaged? Is this the problem? I will try diconnecting the rev limiter from ground and see if she wants to fire the plug.
Anyone have test procedures for revlimiter and igniter?

The kill circuit should open when you push the pedal, If it is grounded when you push the pedal the bottom micro is bad or you have a short to ground in a wire. Try unplugging the wires from the bottom micro and see what happens.

HOWEVER I am still a bit confused because the connector it plugs to on the motor is grounded all the time

You will read an electrical backfeed through the igniter or coil because they are both bolted to ground.

The only way I know of testing an igniter is to just swap it with any small engine or weedeater igniter. I keep one on a shelf with wires and alligator clips on it for testing.

You can unplug everything and just leave the igniter plugged up to the coil wire and ground the inniter it should fire, if not either bad igniter or coil.

Sorry to ramble on, just talking out loud. Mitch

[scottyb]

Well that's what I need at this point...stay with me ....update coming

[scottyb]

I pulled the motor and found the revlimiter installed upside down and a wire connector was pinched and shorted to ground.... repaired it, righted the relimiter, reinstalled.... still no spark? Moving On down the list ....step by step.

[scottyb]

Bingo
Bad ignition coil
I found some real good info I will try to post up tonight to help anyone else who might end up in the same boat....Later scottyb