86 force 125 troubles

[dokpc]

I've been reading and trying ideas for three weeks on this forum with no luck so now I need to ask. the problem is the engine was bogging out after a slow idle(no wake zones) when you punched it you might get 2500 rpms. I get decent spark,carbs are clean, fuel pump+diaphram look good, gas is fresh. tues night I changed the head gasket which was blown between cyl 2+3 put new plugs in ngk buhw, took it for a rip and it ran great! for about a hour and a half, tried idling, wot, medium crusing and it was good to go, next morning I get the kids and wife, put more gas in, launch and it barely ran, max rpm 2500-3000, felt like it was choking out, came home pulled head and gasket was still good. any ideas please<br />sorry for the long post<br /><br />thanks Dan

 

[jrlogan11]

Re: 86 force 125 troubles

As usual, start with the basics. Pull the plugs and see how they look. Are any fouled? Are you getting a good spark on all cylinders? Try pumping the fuel line while the motor is running. Does this help at all? New fuel filter?<br /><br />Basically, you need to determine if it's electrical or fuel, and then go from there.

 

[dokpc]

Re: 86 force 125 troubles

the plugs are black and I changed them again, it seems to get enough fuel and good spark the pistons are carboned up, I decarboned and it seems to get all carboned up very quickly why would that be, possibly to much fuel getting in?any help is greatly appreciated.<br /><br />ps first boat and new to outboard repair and I have a manual.