View Full Version : Water around spark plug electrode

09-05-2009, 11:50 AM
"Have 1995 Yamaha, 85 HP, 2 stroke (not oil injected) Yesterday engine shut down and would not restart. Have strong spark on each of the three cylinders. Pulled the plugs and found water around each of the spark plugs electrode. Where should I look for the cause of water around the electrode of each plug? Sprayed WD-40 in each of the cylinders, then poured 2 stroke motor oil in each of the cylinders as the engine was turned over. Did this to possibly avoid cylinders rusting to the walls.

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09-06-2009, 11:30 AM
Found my problem. The inner plate behind the exhaust cover has a hole near the top of it about the size of a #2 pencil. The hole near the top of the inner plate explains why I had water around the electrodes of all three plugs. (water nuns down hill) Now all I have to do is get the two gaskets and an inner plate. If anyone else ever has this problem don't consider using J B Weld.