Originally Posted by Guy
I see the crankcase view but what do you see? How can you see the bearing journals? How can you see anything of importance without taking it all apart?
Well its running again. YAY!
Guy, to answer your particular question, if you can see a general cover of surface rust, its safe to assume that all components in there are equally affected as they get the same amount of oil. These are very good motors, and there are a few secrets, like not reversing the spacer rings that hold the needle roller bearings in at the gudgeon pin, they are actually designed to conduct heat away from the needles and transfer it to the piston. There is a significant amount of cooling
furnished by charge air heading into those chambers in the photo
To the OP in future if you are going to leave it here is what I do.
Flush in fresh water
for 10 minutes, using a small amount of fuel
at 25:1 oil ratio.
After 10 minutes, remove the fuel
hose, and keep it running by opening the throttle wide open and simultaneously pulling the choke out, when its just about to die, push the choke back, as it revs up, choke it again, keep doing this until all the fuel in the carb is gone.
There will be serious smoke, and that is what you want.
Never let the fuel evaporate from the carb, you must use it up.
Store vertically, no matter what the manual says, keep it vertical.
with an oily rag, or cover the prop with a similar rag.
Do not be scared to rinse the motor
often with fresh water
under the cowl. When my dink is full of rainwater, I bail it onto the engine