Re: Mercury 650 problems – is it worth an overhaul?

[mercuryspecialist]

A picture would be best, but you would need to e-mail me directly for me to do so (info@fergusonpoolemarine.com). Here is a try at a written description. With the front cowl and clam shell cowls removed, looking at the carburetors like from inside the boat, the low speed mixture screws are approximately one o’clock in relation to the venturi or throat of each carburetor. The aluminum choke plate with attaches to both carburetors, has a matching hole for both mixture screws. The high speed mixture is controlled by a fixed jet. A brass hex plug must be removed to change sizes, and is at six o’clock.

Regards,’
Joe