85hp Force Carb Issues??

I have a question about my 1986 85hp force, It will run all day in a container of water but as soon as I get on the lake it will die under load! I can drive around the lake just in gear, but if I throttle up at all it just stalls out! It fires right back up without a problem! I have checked compression 110,110, 107. I was told to check the coils, so I have replaced them Spark is strong. The one thing I haven't done yet is rebuild the carbs. I was told to do it but quite frankly have never done it before and am afraid I am going to make it worse! I have worked on car engine but never touched the carbs on those either! I am getting a little tired of thinking it's fixed then driving 45 minutes to the closest lake to find out...Nope! Do you think this is probably a carb issue, I know the previous owner didn't do any kind of maintenance on it!! Is rebuilding them hard? I would consider myself pretty mechanically inclined just nervous! :~)
Thanks for any input!!

Re: 85hp Force Carb Issues??

Had the same issue last year, but mine would throttle up ok with just me in the boat, if I had any additional load especially in the bow area it would bog down. This could be a result of a few different things. At that time i had a mechanic fix it (now I'm trying to do things myself) Anyhow, he cleaned out the fuel recirculation system and adjusted the timing and that seemed to fix it.
Good luck

Re: 85hp Force Carb Issues??

Ok, Thanks! I will try to clean it out and hopefully that will fix it! I just hope it's a fuel issue and not something else.

Re: 85hp Force Carb Issues??

You may also want to do a decarb to bring those compression numbers up a bit. While anything over 100 with variation of no more than 10 psi between is generally good, typical should be around 120 to 150