S
SteveS
Guest
" I have a 1984 Mercury 150 w/
" I have a 1984 Mercury 150 w/ Oil Injection. I purchased the boat and engine late September last year. The engine ran well. At the end of the season however, it began to get increasingly difficult to start the engine. Once started, it did not run well at idle and often stalled out. I changed the plugs to winterize it and it seemed fine.
Unfortunately, the problem has popped up again this Spring. The engine is hard to start and stalls at true idle. Also runs rough at or below 1100 RPM. Stalls out when shifting through true idle. I have also noticed alot of smoke coming from the exhaust ports and Im not sure if this is just because of the age of the engine. But, seems to run well above 1500 RPM with no missing. Needless to say this is causing alot of headaches.
I have checked the spark plugs and they look ok. The fuel mixture was treated before the engine was stored. There is plenty of oil in the system. The water pump is working.
Any ideas as to what it could be? I would like to get this fixed before the heart of the fishing season hits! "
" I have a 1984 Mercury 150 w/ Oil Injection. I purchased the boat and engine late September last year. The engine ran well. At the end of the season however, it began to get increasingly difficult to start the engine. Once started, it did not run well at idle and often stalled out. I changed the plugs to winterize it and it seemed fine.
Unfortunately, the problem has popped up again this Spring. The engine is hard to start and stalls at true idle. Also runs rough at or below 1100 RPM. Stalls out when shifting through true idle. I have also noticed alot of smoke coming from the exhaust ports and Im not sure if this is just because of the age of the engine. But, seems to run well above 1500 RPM with no missing. Needless to say this is causing alot of headaches.
I have checked the spark plugs and they look ok. The fuel mixture was treated before the engine was stored. There is plenty of oil in the system. The water pump is working.
Any ideas as to what it could be? I would like to get this fixed before the heart of the fishing season hits! "