89 force 50 firing issues

[Spectrum89]

hello everyone I’m looking for some help with my 89 force 50 it always ran like a charm one day just decided to stop it seems like I’m getting a weak spark it will only fire if it sits a day or 2 any help is appreciated

 

[Jiggz]

First things first:
Ensure battery is fully charged and still holding charge.
Check the spark plugs make sure they are not fouled, clean as necessary.
Check make sure it's firing on all cylinders by doing the cylinder drop test when it's running. Pull spark plug one at a time and listen for change in engine RPM. If there's no changes most likely it's not firing all cylinders.

Post your test results.

 

[jerryjerry05]

The having to wait a couple days sounds like the fuel system.
Check the fuel pump diaphragm.

Check the overheat alarm.
Key on, ground the orange lead on the head, should make the buzzer sound off.

 

[Spectrum89]

Ok so far I’ve narrowed it down to weak spark I’ve gone through the whole fuel system everything checked out checked my ignition switch checked my rectifier replace plugs 3 times what’s the proper procedure for checking the stator and packs

 

[jerryjerry05]

Load test the battery?
Weak spark?
How are you testing for spark?
Possible bad ground?

Outboardignitiondotcom
Has test procedures for your motor.
You'll need an analog meter for the basic tests and a DVA or Peak Reading Volt meter
for the more advanced.

The pack: if the stator and trigger test ok, then the packs probably the problem.
But your getting some spark so I'd think the pack's ok??

 

[Spectrum89]

I have narrowed it down to a wiring issues I pulled the 3rd wire from the 8 pin post and it fired beautiful now to figure out where the issue is

 

[Nordin]

Black/yellow wire is the stop circuit.

Check the keyswitch and the lanyard if you have some and the harness for bad insulation.
I will suspect the keyswitch, bad insulation between the two M terminals in running position..
The black/yellow wires goes to one of the M terminals at keyswitch.
The other M terminal is connected to ground some where and when you turn key to stop the engine the two M terminals close to each other and ground out the CD module.

 

[Spectrum89]

Went and bought new ignition switch and new kill switch going to install tomorrow

 

[Spectrum89]

Well I swapped out the ignition switch and the kill switch and she starts and shuts off like a dream thank you everyone for your input I really appreciate the help and knowledge