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Check the fuse on the motor.----Near the solenoid.----A 20 amp about 5/8" long inside a rubber boot.----The lower units on these motors are not robust enough to carry the loads.----Use the best ( dealer ) gear oil in there.----Install a new water pump impeller as well.----Test the overheat...

First thing I would do is a compression test.----Post the numbers here.----Then check for strong spark on each lead.----If those are good then clean carburetors.----Make sure you have a good battery and starter motor.----Install a new water pump impeller before launching the boat.

I do not believe 12 volts from the battery is needed to generate spark from the coils.

Understandable that you get excited about this motor find.----I see a corroded motor that may have a lot of bolts that will break if you try to do needed maintenance.----Evaluate this motor before spending a lot of $$$ on it.

Is this something that started suddenly?-----Not an issue for you last season ?-----Gearcase pressure tested ?

Most BRP / Evinrude dealers can help you get a key.----Try----evinrudeparts.ca----See if they can help you and mail one out to you.

If the recoil gear was smaller it would be easier to pull over.----Flywheel would turn slower and may not generate spark.----Groove on bottom of that gear must not be lubricated.

That starter is well designed.----But it appears that someone greased the gear and that is a No, No.

These little Mercury motors are actually very nice runners.-----Need a little more patience to work on them.

Those primer valve are easy to find used.----They were installed on many motors from 1980 to 2005.----From 9.9 to 300 HP motors !!

The corrosion would indicate salt water use.----Do a compression test on it.----Post the values here.-----If that test is good put a new water pump impeller in before launching the boat.

Install an ELECTRIC PRIMER valve off a 1980 to 2005 Johnson / Evinrude on this Mercury.----Hard starting is then not in your vocabulary anymore.

I twist the impeller as it is pushed down.----Making sure that keyway then lines up.-----Never an issue.----Have done more that 1 of these.

Don't worry about the E on the model .

You are funny.-----Need to look at proper parts book !

It will need a new water pump impeller.

Your motor may not have an overheat warning horn.-----Check fuel hose from motor to the fuel tank and pickup tube inside the tank.

Agreed -------------a spark checker is so easy to make with stuff laying around your shop !

With 120 PSI compression , good crankcase compression in each of the 6 crankcases.-----Good spark that jumps a gap of 3/8" or more , your motor should run and purr.----These motors are just wonderful if in good condition with clean carburetors.----You have installed a new impeller since you...

Serial # of your motor?-----You start the trouble shooting with a compression test.----Regardless of what you think about your motor.----Post the numbers here.----The fuel pump is driven by crankcase PRESSURE pulses.