Folks,
I have a '98 Force 25 (S/N OE302048) with ignition problems. I believe one of the plug wires is sparking to the cowling pan through the plugwire insulation. The engine often runs perfectly, but sometimes sets up a regular pattern of misses. When it is missing, I can feel rhythmic electrical shocks if I put my hand on the cowling pan.
I don't know the part number for the '98 coil, but Mercury lists the '97 part number (300-850899T1) as unavailable.
1) The 300-850899T coil used on the '98 Force 15 is still available, but not stocked locally so I could compare it. Is anybody familiar with the difference or with another way to cross the 300-850899T1? (CDI and Sierra don't seem to list it.)
2) Is anybody familiar with an effective way to reinsulate a plug wire or to add insulation to it?
3) At least one plug wire was damaged due to improper routing. I purchased the motor used, and one or more coils have obviously been replaced. The plug wires were left long rather than cut to length, and one of the wires has been caught in the throttle linkage on numerous occasions. The mechanic used a set of interconnected tie wraps to provide a wire loom where the wires exit the stator plate under the flywheel. Does anybody have a photo or diagram showing proper plug wire routing (and any looms used) for this engine?
Thanks,
Bob
I have a '98 Force 25 (S/N OE302048) with ignition problems. I believe one of the plug wires is sparking to the cowling pan through the plugwire insulation. The engine often runs perfectly, but sometimes sets up a regular pattern of misses. When it is missing, I can feel rhythmic electrical shocks if I put my hand on the cowling pan.
I don't know the part number for the '98 coil, but Mercury lists the '97 part number (300-850899T1) as unavailable.
1) The 300-850899T coil used on the '98 Force 15 is still available, but not stocked locally so I could compare it. Is anybody familiar with the difference or with another way to cross the 300-850899T1? (CDI and Sierra don't seem to list it.)
2) Is anybody familiar with an effective way to reinsulate a plug wire or to add insulation to it?
3) At least one plug wire was damaged due to improper routing. I purchased the motor used, and one or more coils have obviously been replaced. The plug wires were left long rather than cut to length, and one of the wires has been caught in the throttle linkage on numerous occasions. The mechanic used a set of interconnected tie wraps to provide a wire loom where the wires exit the stator plate under the flywheel. Does anybody have a photo or diagram showing proper plug wire routing (and any looms used) for this engine?
Thanks,
Bob