Hi. I am having problems with my 1982 70hp Johnson.
This is what happened last weekend: Started right up, then overheat alarm came on, lowered the idle; it cooled & alarm stopped. The tell-tale was pumping water fine, so I headed out in a no wake zone. Once I passed the no-wake, I opened it up, the motor bogged down and died. It wouldn't re-start.
The fuel is new, tank is clean, correct oil mixture, fuel line new with inline filter and water separator, fuel pump recently rebuilt. The bulb goes slightly soft from time to time, but can't find an air leak. Everything seems tight.
I pulled the plugs and noticed that they were fouled with black greasy fuel. Also, there's black greasy fuel mix leaking out of the hub exhaust.
I plan to change the plugs and attempt to restart on the muffs. Should I check anything else? What is up with the sludge from the exhaust?
This is what happened last weekend: Started right up, then overheat alarm came on, lowered the idle; it cooled & alarm stopped. The tell-tale was pumping water fine, so I headed out in a no wake zone. Once I passed the no-wake, I opened it up, the motor bogged down and died. It wouldn't re-start.
The fuel is new, tank is clean, correct oil mixture, fuel line new with inline filter and water separator, fuel pump recently rebuilt. The bulb goes slightly soft from time to time, but can't find an air leak. Everything seems tight.
I pulled the plugs and noticed that they were fouled with black greasy fuel. Also, there's black greasy fuel mix leaking out of the hub exhaust.
I plan to change the plugs and attempt to restart on the muffs. Should I check anything else? What is up with the sludge from the exhaust?