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Missing 1991 25 hp

cordgrass

Contributing Member
I finally got my motor cranked

I finally got my motor cranked today. But it is missing. i checked the spark plug wires and one is firing good and the other is not showing a strong signal (i am using a spark plug wire tester). what can be causing this the coil power pack or what?
 
"Switch the green leads on the

"Switch the green leads on the coils and see if the spark problem migrates to the other cylinder.

If it does, replace the coil.

If it does not, replace the sparkbox.

Jeff

PS: Ain't modern electronics grand!"
 
"Neat troubleshooting trick Je

"Neat troubleshooting trick Jeff, and will work perfectly
"
 
jeff

i switched the leads a


jeff

i switched the leads and it wont crank just one pop. i switched them back and it cranks right up.

you are talking about switching the 2 green wires on the coils.
 
Before you buy anything pop of

Before you buy anything pop off the flywheel and check the magnets. I replaced $300 worth of switch boxes stators and whatnot and found out that one of the magnets slid around.....
 
"Yup. It's called a flywhe

"Yup. It's called a flywheel puller. You might be able to borrow one from Auto Zone, but you'll to come up with the two metric bolts for the puller.

Did you check it for spark as I instructed?

Jeff"
 
ok i get fire on both plugs.

ok i get fire on both plugs. i noticed today that when i pull the rope sometimes get fires and other time no fire i have to pull the rope very far out and fast to get fire.

i am clueless what is causing this and today couldnt get it to crank.
 
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