Older Mercury serial number

[Pawpawcarpfisherman]

I searched Google and these forums and can't find anything on an older Mercury 500, 50 hp. I got the numbers 3576628 off of the pivot under the motor.

I was wanting the year and advice on the best size propeller for for all around performance.

Any help would be appreciated.

 

[GA_Boater]

Welcome aboard.

Your Merc 500 is a 1973.

 

[racerone]

The propeller attaches to the motor.----But it fits the boat !-----So what boat do you have and what is the boat used for ?"

 

[Pawpawcarpfisherman]

It's on a 19' sd80 skeeter. Thanks for the replys so far. I recreational carp fish with it, so I generally carry alot of gear/ bait. I don't need holeshot or anything in particular. Just an inexpensive replacement propeller.(well more top end wouldn't hurt)

 

[Pawpawcarpfisherman]

Excuse me, the boat is 15.25 feet. Sorry rookie mistake

 

[merc850]

If the motor has an alternator you should get a tach that way you'll know if you are in the correct max rpm range (4800-5500). A motor can be damaged by too low rpms or high ones - I would set it up for 5500 max.