undo steering cable from transom assembly. tie a section of rope onto the end of the cable.
undo the steering cable from the helm.
pull cable up to helm. you may need a helper
connect new cable to rope, pull and push back the other way
the CB cover is just missing. https://www.amazon.com/AlveyTech-Waterproof-Push-Button-Circuit-Breakers/dp/B07V6LKF84
https://www.ebay.com/itm/284248062284
automotive engines need to run at higher temperatures for emissions reasons as well as other reasons.
boat motors need to run as cool as possible to keep the minerals in the water from falling out of suspension while being just warm enough to minimize wear. unless you add a heat exchanger to...
that level of corrosion on the battery cables is an issue.
the cable lugs and the starter stud should be cleaned with a wire brush until you see shiny metal. it needs to be clean enough your mother-in-law would eat off it.
before you take it out, suggest you do all the maintenance that the prior owner neglected.
raw water impeller, bellows, alignment, drive maintenance
oil change, tune up, etc
trailer bearings, trailer brakes, etc.
That looks like an electric shift
You wont find copyrighted material on line from reputable sources
www.outboardbooks.com is the only authorized place to get a manual
Old OMC drives like that are made up of 3 pcs. The intermediate assembly bolted to the motor, the upper unit and the lower...
Dieseling comes from running slightly rich, timing too far advanced, or your throttle cable not adjusted right
AD has the process for adjusting the cable