took my '89 3 hp johnson to the lake today. Went thru one tank of gas problem free. I transfered some gas from the 85 hp's tank and refilled the little motor.
Ran ok for maybe ten minutes, then slowly lost power and died. After that, it would only run with the choke engaged. This isn't a problem with choke control either. The butterfly had to be in the closed position for it to run. Seemed to rev right up this way. But after maybe ten minutes of trying, i could never get it to run without the choke closed.
what would cause a warm engine to require a closed choke to run?
The majority of the day, the engine was run at close to idle speeds for trolling, and I never really reved it up much higher for more than a couple of seconds. Don't know if that factors in.
Also, when I started the day the little holes above the main exaust that usually emit a spatter of water and exaust smoke were clean. They spat water and very light smoke all day. When I looked at the motor after the problem happened, there was a film of what looked like carbon coating the area around these holes. Doesn't seem like that would be abnormal, but thought it worth mentioning.
Before the trouble, she ran great.
Dirty carb? Best I could imagine was that motor suddenly started leaning out, and the choke was the cure.
Any thoughts?
Ran ok for maybe ten minutes, then slowly lost power and died. After that, it would only run with the choke engaged. This isn't a problem with choke control either. The butterfly had to be in the closed position for it to run. Seemed to rev right up this way. But after maybe ten minutes of trying, i could never get it to run without the choke closed.
what would cause a warm engine to require a closed choke to run?
The majority of the day, the engine was run at close to idle speeds for trolling, and I never really reved it up much higher for more than a couple of seconds. Don't know if that factors in.
Also, when I started the day the little holes above the main exaust that usually emit a spatter of water and exaust smoke were clean. They spat water and very light smoke all day. When I looked at the motor after the problem happened, there was a film of what looked like carbon coating the area around these holes. Doesn't seem like that would be abnormal, but thought it worth mentioning.
Before the trouble, she ran great.
Dirty carb? Best I could imagine was that motor suddenly started leaning out, and the choke was the cure.
Any thoughts?
