Re: solenoid 85 force ...1987 year
I'm flying kind of blind with the amount of info I can remember about your motor but generaly if the engine has a miss under a heavy load at high speed the coil could be breaking down or the coil could be shorting through the insulation! Possibly too much spark advance or wrong type spark plugs.
Missing at high speed under a load could also be in the fuel system.
Could be a dirty carburetor, lean carburetor adjustment, Restiction in fuel system, or low fuel pump pressure.
I can't remember exactly what your original problem was but I'm thinking it was an issue with not firing on a couple of cylinders or all, I can only assume you got it running and are now expereincing this miss or skip you are speaking of! max!