Force 125 - Ignition Test - PLEASE REVIEW / COMMENT

[Water4Life]

Hello All,

What I did: I just finished a test of the ignition system and would like the groups input on my results (see below).

Why I did it: the boat is new to me, bought it with a “non running engine” – after changing the fuel out and cleaning the carbs, she runs! But has a heavy miss in Mid Range RPM. Starts and idles smooth, high end is smooth w/power, but mid range shakes the boat! Side Note: compressions are all good & equal.

What I found: I had been questioning the quality of the spark on #2; it fired on the test plug set at 7/16, but just wasn’t as crisp as 1,3, & 4. I worked from the stator-trigger-module-coil. I found that the high tension lead for #2 gave no resistance/conductivity. Dissected it, and somewhere in its depths it is mostly dead... I am replacing the coil. One other thing that came out of the tests was that the CD Modules are sending ~100v less then test specs to the coils. They are consistent, but low – any thoughts on this?

CD Modules
	Range*		Range*
	n/a		210
To Coil	Ohms	Comment	DVA	Comment
1	n/a		130	Test value is low by ~100v, but they are all even - Is the low value a problem?
2	n/a		130
3	n/a		117
4	n/a		113

Thanks All!

 

[Water4Life]

Here are my full test results

 

[jerryjerry05]

Your results: if it's a factory stator then they'd be low.
But an aftermarket CDI unit the values are a lot lower.

Try swapping a coil around and see if the bad follows the coil?
Then if it's still a problem? Try swapping the packs.

The connectors can be bad under the shrink wrap.
I replace all of them when doing any work on the ignition system.