1987 force 85 horse problems!!!!HELP

I have a buddy that just recently bought an older boat with a force 85 on it. currently it is only running on 2 of the 3 cylinders. does anyone know what could be causing this?

THANKS FOR ANY HELP!!!!

Either carbs or electrical.

Pull one plug wire then try to start it and listen for differinces, pull the next and locate the cyl that is not running.

If you can locate which cyl is dead check for spark. If no spark then Swap a plug coil from one cyl that is running to one that doesnt and see if it runs or sparks on that cyl then.

Don’t sink too much $$$ into it, Force was not known as a great motor. Merc/Mariner’s Walmart brand if you will…

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Don’t sink too much $$$ into it, Force was not known as a great motor.

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I hate to do some smack talking, but I would never own a force, even if it were given to me. Yikes.

try this
Start motor for several seconds. Shut it off. Carefully feel each plug, the cold one is the dead cylinder. Could be a bad plug. Good luck

could be many things, even a burnt piston. Before buying anything used I do a compression check on the motor, I would suggest doing this as well. The 3 basic things to check for are spark, fuel, and compression. I would start it and run it for a little bit. Then pull all the plugs and see if they are all getting fuel and how it is burning. Next put a plug in each coil and test for spark then finally check the compression on each cylinder. To be fussy I normally do a compression test with cylinders warm first but if you have a completely dead cylinder it won’t matter. This is what I do, similar to what Chuck said just a different means to the same thing. I also beleive that Force was Chryslers line that Merc bought and then discontinued, for good reason. Good luck.

I’ve never owned a Force motor but thru conversations with guys that work on’m, they tell me that the original Chrysler Force motor is still a good dependable workhorse, but parts are a little tough to find. When Merc bought them, things started going downhill as far as quality and dependability. If your buddy has an original Chrysler, I’d say to look into fixing it. If not, my suggestion would be to find something to replace it with jerr

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I have a buddy that just recently bought an older boat with a force 85 on it. currently it is only running on 2 of the 3 cylinders. does anyone know what could be causing this?

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The name on the cover. Seriously.

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I have a buddy that just recently bought an older boat with a force 85 on it. currently it is only running on 2 of the 3 cylinders. does anyone know what could be causing this?

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The name on the cover. Seriously.

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Like Suzuki ?

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The name on the cover. Seriously.

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ahhh….they’re not all bad. I have a 1993 70 horse (by merc) that always runs beautifully. Granted it’s not my first choice in motor, but it gets me out on the water until the time I can upgrade to a bigger/better boat & motor

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Don’t sink too much $$$ into it, Force was not known as a great motor.

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I hate to do some smack talking, but I would never own a force, even if it were given to me. Yikes.

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Dislike piling one but my dad dumped his boat because it had a Force. He bought it new… ran like junk from day one.

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I have a buddy that just recently bought an older boat with a force 85 on it. currently it is only running on 2 of the 3 cylinders. does anyone know what could be causing this?

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The name on the cover. Seriously.

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Like Suzuki ?

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Dream on. Zukes rule.

BTW-I am currently the owner of a Force outboard.