Have Boat Questions? Ask a Boat Repair Expert.
Hi and thank you for your question.
One of the more common causes for the no spark symptom has to do with the ending stop switch. You can test this by bypassing the switch. To bypass it, merely unplug it and test for spark. Notice I did not say try to start it because if it does, you will have a hard time getting it shut down with no kill switch.Pull the plugs out of the head, put them back in the spark plug caps and lie them on the head but away from the open spark plug hole. Now, unplug the 2 wire connector going into your handler bars steering tube that has 1 white and 1 black wire in it. With that wire unplugged, check for spark. If you get spark, you can try to clean the switch or you can replace it.
If you need more help, let me know,
Thank you for the additional information.
Sounds like we are going to have to go through the ignition system step by step.
Start out by checking the spark plug caps, They should have between 4000 and 6000 ohms resistance.
Then move on to checking the coil. The primary side (orange to black wires) should have between 0.075~0.10 ohms resistance. Since this is so minute, make sure you cross the leads of your meter first and find out what the internal resistance is of the meter. Then subtract the internal resistance of the meter from the resistance you got from your test.
Charge coil resistance is from the brown wire to the blue wire, and should be between 298 and 365 ohms resistance.
Pulser coil resistance is from the white/red wire to the white/black wire and resistance should be between 445 and 544 ohms.
All 4 of those wires should be in the same harness coming from the stator, and the connections are housed in the electrical box.