Thread: Duck boat outboard tips

Do you know its history?
If not change leg oil and replace impeller for a start.
Without actually being there to hear it run it is impossible to diagnose anything but.

drain float bowls.

If it starts and stays running reliably after changing leg oil and impeller give it a good run in a bucket or on the muffs untill well warm, telltail should be warm and 6year old stream not 60year old stream.

Fuel mix should be 50/1 of fresh fuel and a outboard oil not a chainsaw/lawnmower oil.... mine seems to prefer 95.

Of that vintage it may have a mixture screw on the front with the choke and stop button....it can take a while to really get this dialed in so idle is reliable if it has been sitting or titued with.
Only adjust it after at least 5 min running at or near full load to clean the plugs and be at operating temp....once dropping to idle if slowly idle drops and or it 4strokes idle is too rich, wind knob clockwise (tighten) to lean out. If idle increases or surges and is ting ting tingy its too lean adjust knob out anti clockwise.
If all good get out and burn a tank of gas on the water( in walking or rowing range) some full throttle hours does wonders for old two smokes