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I do not believe the bearings in 4 strokes are up to the task of supporting a crankshaft in big waves.------Gyroscopic effect comes into it.-----Try holding a bicycle wheel in your hands.-----Have someone spin it and then try to move / change the position.----But 4 strokes do run nice when they...

In Canada----evinrudeparts.ca----might be able to help you.

With the trim all the way down the bow would not shoot way up !!

Too much oil is not a problem,----Does NOT foul the plugs in this day and age.

Lots of electronic parts on newer 4 strokes and 2 strokes are listed as NLA.----So if you can't get that ECU during the season ???

You need to be sure that the oil injection is in service or bypassed by a previous owner.-----Need to mix at 50:1 until you verify that system is indeed working properly.----Water going out the pee hole on some motors indicates that water pump is working.----But it does not mean that motor is...

Have you put a new water pump impeller in every 4 / 5 years or so.

The 115 does look like a 60 degree looper.

A 1969 would be a 55 HP model.-----Switch the shift wires and test again.----Model # is ??

There are many opinions on oil injection.----Up to you to verify that it is working .----Test warning system.----Test oil consumption.------Only you can decide what to do.----Have one of those motors apart for rebuild.----Owner neglected to commission oil injection and motor was destroyed with 4...

Yes there is a fuse in the wiring harness.----Look for it near the solenoid.----A 20 amp about 5/8" long.

Looks like something loose inside the motor and popped a hole in the crankcase.----Your location in Canada ?

Correct it is a 76 model.------There really is no difference between a 76 model and an 81 model.-----Easy motors to work on.-----First thing is to post actual compression test values here.

The simple pump mounts directly on the intake manifold.---Mounts over the pulse port.----One hose for fuel in and a hose for fuel out.-----Remove pulse limiter and plug that port.----Re-arrange hoses as needed.

Boat should be running about 50 MPH.-----Sounds like it is running on 3 of 4 cylinders.

Take starter apart for inspection.-----Do ohm checks.

Remove one motor and install the other.-----No need to change controls.----Install new water pump impeller.----Change gear oil.-----Commision the oil injection system ??----Test the oil injection system.----Perform compression test and record numbers for future reference.

Post the actual values after doing a compression test.---Post them here.

Was the correct propeller installed?------

Open low speed fuel mixture screws 1/8th turn at a time and test run.