seafoam? for merc 650

[coosarunner]

OK it's been some time since my last post. My fishing boat, a '72 bomber with a merc 650,sat for two months. I tried to run it, it would idle/fast idle all day, would make it out of the slough and start to bog down. I put fresh gas with liquid seafoam in it, and it still bogged. Now my runabout sat for 8 months, put good gas with seafoam in it and it runs great. The seafoam has me confused, do they make an aerosol to spray into the carbs? I tried the bomber again today, but first I checked it out. The middle plug wire, (vacumn wire?) on the distributor was corroded so I cleaned it off and taped it on there real good. The plugs looked good, wires were ok. The fuel filter, or what I think to be the fuel filter, was on there good and I wasn't sure if I should fool with it. Anyhow, I blasted out the carb with cleaner put it in the water and took off. It ran much better but eventually started to bog. Should I decarb with the seafoam(Not really sure how), buy carb kits and do it myself, or pay the marina $180 and be done with it? Any help would be appreciated.

 

[laker925]

Re: seafoam? for merc 650

I did a rebuild on my 850 but some of the carb settings were still off and out of sync.(the cables and the idle stop/advance needed adjusting also).I got fed up with it and for the piece of mind, and know how, that the guys at the shop have and the equipment- I feel better about it.It ran 220. But if there is a carb problem I know I can gripe at them to fix it right!If it were the timing /lower unit(did a rebuild on it too)charging ,etc -all the self explanatory stuff that does not take as much technical skills(or 2 people) then I will tackle it head on -but the carbs/throttle settings on these-nottta(for me).

 

[Marauderk]

Re: seafoam? for merc 650

Buy the carb kits and cleam them yourself not very hard just make sure you have a manual or instructions. Sounds like the carbs are dirty and just need a good cleaning

 

[coosarunner]

Re: seafoam? for merc 650

Thanks for the advice fellas. I think I'll try to do it myself. Heck I'm pretty handy and It wouldn't cost but $30. I already have the repair guide so I'll let ya know how it goes.