merc 650 won't run

[coosarunner]

I have a '72 Bomber with a 650 merc. It sat since December. I tried to run it yesterday and had trouble. It cranked right up and I fast idled it to warm up. It wouldn't idle(but it never eally did). the problem is once I start to go it bogs down and misses really bad then dies. This is the same boat I got 4 years ago that sat for two. I brought it home and it cranked right up and ran fine,after 2 years. I plan on checking plugs and trying fresh gas with seafoam in it. Anyone had any luck clearing up carbs with it?

 

[Vlad D Impeller]

Re: merc 650 won't run

ya need to decarb

 

[Laddies]

Re: merc 650 won't run

It sounds like you did not run the fuel out of the carbs and they varnished up, if thats the case get some fuel injecter/carb cleaner put it in the fuel, about twice as much as is recommended ( if you have a large tank mix some in a smaaler portable tank of some kind) run it for about 1/2 hr. let it set a while (over nite if possable) then try to run the engine ,if that don't work clean the carbs---Bob

 

[coosarunner]

Re: merc 650 won't run

Thanks for the reply. I've had the Bomber and an'80 Glasstream runabout with a '88 rude fo alost 5 years. I got the Bomber for $400 and have had to replace the steering and throttle cables. other than that just plugs and fluids. The Glasstream had a new floor put in it. I paid $1500 for it. Again all I have done is plugs and fluid. I was lucky with these two but I guess its time for some work.