HiZ
Member
Okay What I have is an OMC 5.7L GM 350 260hp
Equipped with a 800 Stringer drive
the boat is a 79 IMP INCA
Low hours and looks great
Now for the running issue
Took it out for the first time and it ran great accept when warmed up under load
Runs all day on the ears on land.
About 10 min run time and it will loose power and die out, not totally die. But come off power and you can come to an idle and it will run
So, Looking it over I found the intake gaskets seeping and pulled the intake, replaced them, cleaned the carb, and adjusted idle to 8deg BTDC
Took it back out tonight and it purrs like a kitten, runs well.
But upon acceleration it bogs and then hits.
Let's say you are getting on plane or are on plane and smack the throttle, it will die then take off....
Accelerator pump is working and carb is clean
When the power comes on it is fine again, so cruising for about 10 min and it starts to stumble and fall off power
I came off plane can idled back, it shifts fine and works great when at idle/low rpm
Where do I go from here? I'm not much for points and condensor so any help or a direction to go would be great
It seems to stumble, as if it's missing and it does it only when under load and only when running after a few min say 5-10 under load normal cruising RPM
anything?
Equipped with a 800 Stringer drive
the boat is a 79 IMP INCA
Low hours and looks great
Now for the running issue
Took it out for the first time and it ran great accept when warmed up under load
Runs all day on the ears on land.
About 10 min run time and it will loose power and die out, not totally die. But come off power and you can come to an idle and it will run
So, Looking it over I found the intake gaskets seeping and pulled the intake, replaced them, cleaned the carb, and adjusted idle to 8deg BTDC
Took it back out tonight and it purrs like a kitten, runs well.
But upon acceleration it bogs and then hits.
Let's say you are getting on plane or are on plane and smack the throttle, it will die then take off....
Accelerator pump is working and carb is clean
When the power comes on it is fine again, so cruising for about 10 min and it starts to stumble and fall off power
I came off plane can idled back, it shifts fine and works great when at idle/low rpm
Where do I go from here? I'm not much for points and condensor so any help or a direction to go would be great
It seems to stumble, as if it's missing and it does it only when under load and only when running after a few min say 5-10 under load normal cruising RPM
anything?