Motor or control problem

[bays2002]

Hope someone can help me here i have a 1981 Basstracker with what i think is a 1968 merc 500 thunderbolt with a quicksilver throttle control.My problem is that when i put the control into reverse or foward the motor stalls out but this only happens when the motor is in water it runs fine when i hookup the muffs & run water from a hose.

 

[old-gubbins]

Re: Motor or control problem

I am not an expert, but this sort of problem has come up many times before. Have a search for "stalls on load", in the Merc. outboard forum.

Here is one of the threads:
http://forums.iboats.com/showthread.php?t=131947&highlight=stalls+on+load

There are so many possibilities as regards fuel, carburettors or more major problems, but most of the questions raised are covered in this and other threads.

Hope this helps.

o-g

 

[Yepblaze]

Re: Motor or control problem

For most of us that have experienced a similar issue, it may have led to some detective work.

Maybe try adjusting carb idle fuel mixture.

or idle speed setting

checking engine compression

if equipped with a magneto it might be removed and serviced

or perhaps delve into carb and fuel pump service.