1991 Force 70 HP - starting issues

[saunts]

This motor always had issues cranking so I took it to a repair shop and, they diagnosed it. They replaced

the starter solenoid. After this they motor cranked and, started perfectly !! Unfortunately, after 3 days of

"bliss" the motor now cranks over great but, it wont start. I checked the kill switch.... It is fine. It seems I

am now getting no spark at the plugs. Any thoughts on what could be causing this ??

 

[pnwboat]

Re: 1991 Force 70 HP - starting issues

Have you done a compression check?

 

[Jiggz]

Re: 1991 Force 70 HP - starting issues

After a compression check as mentioned by PNW, you need to verify for sure if you are getting sparks or not by using a see-through spark tester. The tester costs less than $10. If you know for sure you do not have sparks, then it is time to troubleshoot by disconnecting the black/yellow wire from the terminal board from module. This is the shutdown wire. If the problem persists then it is time to check for stator voltage output from the red and blue wire connecting to the module. These wires power the module. Voltage reading should be around 150+ from each wire to ground while cranking.

 

[saunts]

Re: 1991 Force 70 HP - starting issues

there is no spark, I have tester.
Will try your other suggestions and, advise.
Thank you for your knowledge and, help

 

[saunts]

Re: 1991 Force 70 HP - starting issues

Have you done a compression check?

Yes, compression is 130, 130, 120.
Motor ran fine 1 day earlier !!