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A 35hp Mercury outboard, serial number A184641, 1985 year model.
The impeller on a 9.8 Mercury outboard boat motor can be easily changed. Remove the retaining bolt. The impeller will come off. Reverse the process to install the new impeller.
The water pump impeller on a 7.5 hp Mercury outboard, is located on top of the gearcase, and is driven by the driveshaft.
A 35hp Mercury outboard, serial number 6445947, would be a 1984 model.
The 35 hp Mercury outboard has a dry weight of 148-150 lbs., depending on year model.
A 35 hp Mercury outboard, serial number A152966, would be a 1985 year model.
you feel the clown
You don't wire anything. the water pump is mechanical , consisting of a rubber impeller /impeller housing and copper tube running from the impeller housing to the engine block. The drive shaft runs from the gearcase through the impeller/impeller housing to the engine block allowing the intake of water to match the engine RPMs. if the water pump does not work it is most likely that the rubber fins broke off (extremely common for all outboards that are water cooled)
right behind the prop, on the same shaft
What year? It may require special tools.
A 35 hp Mercury 2 stroke, requires a 50:1 ratio, one pint of 2 cycle oil to six gallons of fuel.