Hello everybody,
I have a 1989 Mercury 70 HP (3 cylinder) mounted on my Glastron GT-150 and I have some troubles with it.
When the RPMs are between 900 (idle speed neutral) and about 2000-2500 it "does not run good". I mean it's not very stable, it vibrates a lot, etc... When I'm at higher RPM, it's OK no visible problems. WOT rpm is 5400.
It does not stalls at all, it's just that the motor is not stable as it should be.
One other thing that is maybe connected is, when i'm in gear at neutral and push the throttle all the way, it hesitates and sometimes stalls.
Is-it possible that one of the 3 cylinder doesn't work because of a bad spark plug?
Thanks in advance and please excuse my english (i'm located in switzerland)
Max
I have a 1989 Mercury 70 HP (3 cylinder) mounted on my Glastron GT-150 and I have some troubles with it.
When the RPMs are between 900 (idle speed neutral) and about 2000-2500 it "does not run good". I mean it's not very stable, it vibrates a lot, etc... When I'm at higher RPM, it's OK no visible problems. WOT rpm is 5400.
It does not stalls at all, it's just that the motor is not stable as it should be.
One other thing that is maybe connected is, when i'm in gear at neutral and push the throttle all the way, it hesitates and sometimes stalls.
Is-it possible that one of the 3 cylinder doesn't work because of a bad spark plug?
Thanks in advance and please excuse my english (i'm located in switzerland)
Max