Help,
1972 50 hp Johnson with hydro electric shift 50272C Outboard Motor will start every time in the driveway, but just won’t start in the water.
Compression is good, 155 top cylinder, 150 bottom cylinder. Plenty of bright blue spark.
Carburetors overhauled. Pumps great water.
Changes gear in both directions in the bin of water.
Outboard is clamped to the tinnie hull, so I would assume its grounded ok?
The only thing I do know, is that if I run the boat in the driveway with muffs on, and also immersed in a large bin to keep noise down for neighbours, I got a spare length of wire, and touched it from the De Havilland aluminium hull and placed the other end on the leg of the outboard. There is a spark there, and if I hold the 2 ends in place it acts like a kill switch and stops the motor.
Does anyone have any idea maybe what is going on please?
1972 50 hp Johnson with hydro electric shift 50272C Outboard Motor will start every time in the driveway, but just won’t start in the water.
Compression is good, 155 top cylinder, 150 bottom cylinder. Plenty of bright blue spark.
Carburetors overhauled. Pumps great water.
Changes gear in both directions in the bin of water.
Outboard is clamped to the tinnie hull, so I would assume its grounded ok?
The only thing I do know, is that if I run the boat in the driveway with muffs on, and also immersed in a large bin to keep noise down for neighbours, I got a spare length of wire, and touched it from the De Havilland aluminium hull and placed the other end on the leg of the outboard. There is a spark there, and if I hold the 2 ends in place it acts like a kill switch and stops the motor.
Does anyone have any idea maybe what is going on please?
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