R
raysirx
Guest
" I have a 1979 85Hp V4 Johnso
" I have a 1979 85Hp V4 Johnson that occasionally will only idle at only 500 rpm when started and stall when throttled. Usually when warm it will start and idle smothly at 1100 rpm and throttle up to 5,000 rpm without a hickup.
I have changed the plugs
Changed the fuel pump diaphram(hopefullycorrectly)
as well as the fuel lines, water pump and thermostats.
I have not checked the timing, but I pulled the fuel line and cranked it to observe flow and lack of bubbles.
I also drained the fuel and sprayed the carbs with carb cleaner. I pulled off the bowls which looked clean. My compression is 112, 110, 108,110
Any Ideas? "
" I have a 1979 85Hp V4 Johnson that occasionally will only idle at only 500 rpm when started and stall when throttled. Usually when warm it will start and idle smothly at 1100 rpm and throttle up to 5,000 rpm without a hickup.
I have changed the plugs
Changed the fuel pump diaphram(hopefullycorrectly)
as well as the fuel lines, water pump and thermostats.
I have not checked the timing, but I pulled the fuel line and cranked it to observe flow and lack of bubbles.
I also drained the fuel and sprayed the carbs with carb cleaner. I pulled off the bowls which looked clean. My compression is 112, 110, 108,110
Any Ideas? "