Could be something simple like the idle mixture screw is set too lean.
Usually at the base of the carb, one for each carb barrel. Back it or them
out half a turn and see if that helps.

Don

"DS" wrote in message
t.ca...
I have a Merc I/O, probably about 10 years old. It has been tuned up and
has
been running fine. But it tends to stall at idle speed and sometimes will
stall when you throttle back after running at speed.
Carburetor problem? Dirt in the gas? Electrical? Something simple or
should
I haul it to the service guy?
Thanks.


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