Update force 85 won't idle

[darcygd]

Just an update that hopefully will help others, my force 85 would not idle in the water but was fine on the driveway with muffs. A friend of mine was a merc mechanic for years and steered me in the direction of a stuck ring. He suggested " merc power tune" full can per cylinder. Ran it with muffs and followed his direction, what does it hurt three cans were $20.00. Immediately the engine sounded different but seemed more boggy. Finished up running it and took it to the lake. Wow, idles like a dream now. I would never have believed how nice this motor runs. Hopefully this can be a fix for some of the others on here with idle issues

 

[jerryjerry05]

Re: Update force 85 won't idle

That's great!!!
Sounds like carbon buildup!
In the old days,the oil would burn and carbon up the rings and eventually ruin the piston/cylinder.
Now theTCW-3 issupossed to not do this.
If it's set up right it shouldn't really need this.
What's the compression??
Where are the air screws set?

 

[Jiggz]

Re: Update force 85 won't idle

It's called de-carboning which can also be done with straight shots of seafoam into the carbs or if you are really stingy even plain water in a spray bottle will do. Carbon build up is exacerbated by improperly set air screws.

 

[darcygd]

Re: Update force 85 won't idle

I do agree that poorly set needles and such will cause carboning but in this case the previous owner hadn't run it in about 3 yrs and never stabilized the fuel

 

[Jiggz]

Re: Update force 85 won't idle

Never heard of an engine accumulating carbon while in storage but then again every engine has its own history. Lol.