Try this link. Older motor so not sure it's the same but I think it might be. The 3rd thing he does with the rod on the side under the flywheel is making sure the butterfly opens all the way. Also, revving the motor in neutral doesn't work because there is no load on the motor.
The procedure is in the manual, you may have to read the Fuel and Ignition sections fully, but it is in there.
the problem is the parts shown in the manual diagram I’m looking at look nothing like mine even though that manual supposedly covers my engine year and model
That was mid carb removal. Clip is missing yes.
Omc manual with sync and linkage adjustments. For some reason I thought you said the butterfly valves in your carb weren't opening all the way. Anyhow, here it is.
If it died while hand choking then that means it's most likely not a fuel problem. Is carb valves opening fully?
You are referring to the Retainer that goes here?
New plugs new coils still only running half speed. Seems to sputter when throttled all the way. Too much fuel in mix?
Ok, just reviewed everything again. ..you've had many things go wrong. (Prop, shift linkage, low rpm's) did you ever do a compression test? Didn't see one and I'm pretty sure you have over rev'd it many times.
