Ignition coils

[boatsmitty]

My Force 125Hp 89 model starts ok when cool, then begins missing soon after. I suspect a bad coil. Will parts house or boat shop have a test machine for coils? I was thinking of a device that could spark each one until it warmed up or stress it like normal load.

 

[scotiany]

Re: Ignition coils

I bought 2 spark testers from Harborfreight and attached one to each wire. They seem to work well and they're inexpensive. Might be the way to see what kind of spark you're getting.

 

[OBJ]

Re: Ignition coils

Smitty, an easier way to test the coils is to use a hair dryer. Put the engine on motor flushetts and start it up. Play the hair dryer on the suspected parts and see if the problem duplicates. I would suspect a power pack instead of a coil. Coils usually tend to leak if they over heat.<br /><br />Hope we've helped and keep us posted.

 

[scotiany]

Re: Ignition coils

OutboardJim, you're probably right. I was thinking (incorrectly) magneto coils. Guess I'm stuck in the past.