Hey all, awhile back, I started trying to revive a TN28. In the process on my work, I noticed that the engine had low compression, (45lbs), and it wouldn’t run on the lake for more than 45 seconds at a time. I figured that I had a bad head gasket and it was overheating, so I tried to replace it, and in the process, I sheared off most of the head bolts. I boogered up the powerhead trying to remove the broken bolts, I so I found another powerhead on EBay (with good compression), and attempted to run with that. I assembled the motor using the other components from the old engine. Now when I try to run the engine, it pop and smoke but it never runs. It seems to me that the engine seems to flood out easily, because when I pull the spark plugs, they are wet. I installed a Sierra tune up kit (new points and condenser) but the engine still floods out easily, and it has never run for more than 2 – 3 seconds. The coils are recently new as well. I never had trouble with the carb or ignition when I had the old powerhead. I took the engine out in the dark last night and tested the plugs by grounding them to the tank mount and they both give off a consistent blueish / white spark. Is it possible to install the magneto plate wrong? Also, when you pull the lever to the stop position, is the mag plate supposed to ground out, or does the plate retard the ignition so much that the engine doesn’t run? The reason I ask, is that when the lever is at the stop position, I still get spark to the plugs. Sorry for the noob questions, this and my HD25 are my first experience with outboard motors.
Totally stumped!
-Karl
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