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    Took the boat out and one of the twin Force 120s just quit the other was running on 3 cyls for 12 miles

    I just measure Brown/Blue and Brown/Yellow to ground and both were 3.5V so almost double from the less than 2V expected in the test.
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    1986 85hp force 856X6L no spark

    Even though I have an lue Sea 7650 Add-A-Battery System with ACR and Battery Switch
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    1986 85hp force 856X6L no spark

    I am having the same problem with a 1990 120HP Force so 2 modules, I rebuilt the engine and after driving to the Channel Islands 12 miles out long story short the motor cranked but no star. So, there was no spark in any of the plug wires. Since I bought the CDI stator new and only used the boat...
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    1990 Force 120HP no spark NEW stator tests 0.5V between sets open resistance this is crazy HELP

    So I took it out and motor running great I got to the destination 12 miles later and turn off the motor fished then when tried to start it was not doing it at first but then it did it and I moved spots. After trying to start again it just never did. No spark on any cyls. Tried the rectifier...
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    Took the boat out and one of the twin Force 120s just quit the other was running on 3 cyls for 12 miles

    Hey Jerry so a bad rectifier can cause no spark in all 4s? What could have caused mine to go no spark with a new stator running really great. I get 0.5 between sets and open resistance. It's a dilemma as of now. I got another stator CDI. Trying to understand the reason. Don't want to have the...
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    Took the boat out and one of the twin Force 120s just quit the other was running on 3 cyls for 12 miles

    As always thank Jerry Yeah, as I mention on my first post I did the second test for the no spark on any plug. The DVA between wire sets is 0.5V and the resistance is open reading. I did remove the 2 black and yellow wires and tested for spark and there is none. I also disconnected the rectifier...
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    Took the boat out and one of the twin Force 120s just quit the other was running on 3 cyls for 12 miles

    On the other engine there were 2 broke wires I fixed them and one of the modules stopped sparking on number 1 cylinder, so I swapped it for one of the other engine's and it now sparks. Is there a way to check resistance on the brown/blue and brown /yellow that go to the stator wires? This was...
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    Took the boat out and one of the twin Force 120s just quit the other was running on 3 cyls for 12 miles

    So I took the boat out to the Channel Islands yesterday, it was flat out there even though the apps showed 3ft waves and as usual were wrong thank God. So, it rode perfect all the way there going 25mph. I got to the first fishing spot, and I stopped. After a while I wanted to start it and it...
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    1990 Force 120HP carbs mix adjustment help

    Since I have twin engines I can say for sure the other one has zero play. This one is visible and audible. I have not measured it. I am sure of it and when I find my dial indicator I will measure.
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    1990 Force 120HP carbs mix adjustment help

    Yeah, I have a separator. Can this cause the motor to die at normal idle in gear? And can I postpone the repair for after the summer cycle? I read that this was an issue in some older smaller 2 strokes. It's just like mine it visible because it shakes at idle from the play. it almost acts like...
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    1990 Force 120HP carbs mix adjustment help

    Hi everyone, I hope you're all healthy and still around. I have been offshore fishing with my oldie twin 120s Force, today I was testing it because there is a rattle from the shaking that happens only at idle on the starboard motor that has always had problems at idle. I rebuilt the lower drive...
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    1990 Force outboard lower drive issue question

    I actually managed to grind them down to around .082 and now I have .007 backlash on the prop shaft play tightened at 130lbs. I think it's all good.
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    1990 Force outboard lower drive issue question

    Do Any of you have a a thrust spacer 819414A1 the one that goes on the front gear and the propeller shaft goes through it. I have. one is .07in and the other is .06in so that's too much oddly enough they were both on and probably someone loosened the propeller retainer nut so it can spin. So I...
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    1990 Force outboard lower drive issue question

    So, I got the 6-page manual for the lower unit but unfortunately all the info in it is the same as in the service manuals that I have. They don't even show the driveshaft numbers that I have on the gear box which show driveshaft as 2 and the other as a 4. And no mention on how to find the right...
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    1990 Force outboard lower drive issue question

    I have thought of that, and I do have a tool that measures it looks like a torque wrench, and it measures torque forgot why I bought it, must have been for the I/O boat or a car engine rebuild Here it is halfway done So as you can see without the drives both engines measure the same. The LUs are...
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    1990 Force outboard lower drive issue question

    When I press your picture or name this is what I get
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    1990 Force outboard lower drive issue question

    I did all that, sprayed it everywhere to no avail. I even switched carbs from one engine to the other. Switched the electronics. The only thing I didn't switch are the LUs. Engine compression 160 on all after rebuilding and break in. I know this should not be a hard issue, but I was perplexed...
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    1990 Force outboard lower drive issue question

    I did the trouble shooting and could not come to any conclusions. On a hose in the parking it doesn't do it. It only stalls in the lake. I did spray all around the intake carbs etc. The only thing that I narrowed it down to is the shimming in the drive. I mean it doesn't stall slowly it dies...
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    1990 Force outboard lower drive issue question

    Hey guys, I don't know if you read the comments, but do you think that the drive not being shimmed properly after I originally rebuilt it can cause the motor to die in gear at idle? And the water coming out of the nipple to be hotter than the second drive I did not touch? Both motors were...
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    1990 Force outboard lower drive issue question

    I know that manual doesn't specify anything on the forward gear shimming from scratch. It only tells you what to do if you have 2 variables. So either you know front gear code and shim measurement and find the housing code in the chart then you substitute for the new housing or front gear etc. I...
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