80 750 twin no spark

someone before me converted it to a later style electronic ignition.

I wired it as per the awesome diagram loudhvx made me in the bare bones thread.

Not getting any spark out of the coil. When I test the coil, I have a good 12v with the yellow/red wire. yel/blu has continuity to ground when key is in the on position, but becomes open when cranked.

Is the ignitor not working correctly? I may be completely wrong here, but I would assume that the ground continuity should be switching off on off on when cranked, and it should spark at each point of continuity?

Bad coil? or possibly something else in the ignition?

xbmxxx wrote: ...would assume that the ground continuity should be switching off on off on when cranked, and it should spark at each point of continuity?....

Interruption of the coil primary winding's ground connection is the event that causes a charged coil to fire though the secondary loop.




Good Fortune!

If it has Kawasaki electronic ignition, then the igniter should not ground the coil unless the motor is turning over, so either the wiring is messed up or the igniter is bad.

steell wrote: If it has Kawasaki electronic ignition, then the igniter should not ground the coil unless the motor is turning over, so either the wiring is messed up or the igniter is bad.

that's pretty much the exact opposite of what its doing. Looks like i'll be hitting the scrapyard for a new ignitor this weekend.

xbmxxx wrote:

steell wrote: If it has Kawasaki electronic ignition, then the igniter should not ground the coil unless the motor is turning over, so either the wiring is messed up or the igniter is bad.

that's pretty much the exact opposite of what its doing. Looks like i'll be hitting the scrapyard for a new ignitor this weekend.

Are you sure it's the kawasaki ignition?
Some aftermarket ignitions work that way... ie, ground the coil most of the time, then un-ground it periodically when the motor is cranked over.

If you can't find an igniter, you can try the HEI version in my signature.

loudhvx wrote:

xbmxxx wrote:

steell wrote: If it has Kawasaki electronic ignition, then the igniter should not ground the coil unless the motor is turning over, so either the wiring is messed up or the igniter is bad.

that's pretty much the exact opposite of what its doing. Looks like i'll be hitting the scrapyard for a new ignitor this weekend.

Are you sure it's the kawasaki ignition?
Some aftermarket ignitions work that way... ie, ground the coil most of the time, then un-ground it periodically when the motor is cranked over.

If you can't find an igniter, you can try the HEI version in my signature.

It looks factory. The part number is SH347.

Ok, just making sure.

The twin igniters are just a black box, whereas the inline-four igniters have fins.

Yep, Little black box. Had the coil tested today, it tested good. Replaced the ignitor with a known good one.

Still no spark.

I went through the wiring test per kz400.com. All the tests were a pass except one.



it all passed except for 5. and 6.

Any idea what would cause that?

Tests 5 and 6 measure the voltage on the pickup wires (one blue wire and black wire).

What voltage do you get on each of the pickup wires?

Also, if you disconnect the pickup wires at the igniter, then measure the resistance of the pickup, what do you get?

I got 0 volts on both. But they passed the resistance year per the manual specs. Can't remember the numbers now though

If not already done, would assure the black/yellow wire from the igniter is providing a good connection to ground.

Good Fortune!

Since it sounds like the pickup wires are being grounded somehow, do they show any continuity to ground when they are disconnected from the igniter?