cranking issue

[oddysea1]

I have a 1989 200h.p. Yamaha that was winterized after running great this past season.I always hand crank the flywheel a few turns before starting pre-season. The starboard engine turned as usual with a bit of effort.The port engine did not follow suit,it took a great effort to turn the flywheel.The problem is when I attempt to start the engine it turns several revolutions and the weakens down fairly quickly on a new battery.Any possible speculations would be appreciated.Thankyou Andy

 

[robert graham]

If it was mine I'd remove the spark plugs and crank on the motor....maybe some corrosion on piston rings/cylinder walls?....

 

[tommarvin]

The port engine is not firing before the battery goes dead.
I'm assuming you sprayed fogging oil in each cylinder when you winterized.
Do you have a separate battery for the port engine, if so load test it to make sure it's ok, volts don't mean good battery. HF has a load tester for 22bucks.
that's smart to turn your your flywheel before you turn your key at first start of season.
If the port motor had spark and fired would it run, the motors not seized.

 

[oddysea1]

The port engine has its own and new battery,the difficulty of hand turning the flywheel leads me to believe what the vice admiral has determined.I can check the electrical system as well,however my new question is should I spray some type of solvent in the cylinders and allow some time to soak before cranking?If so any suggestions WD-40,marvel mystery oil, outboard oil, again your feedback is appreciated.It would be great if this was the solution.

 

[oddysea1]

I am still searching for the cranking drain, had someone somewhat experienced check the flywheel and he felt the resistance was not the issue.I am wondering what the function of the starter solenoid is, could this be a possible cause of the quick wind down of the starter?

 

[99yam40]

starter solenoid uses a small amperage key circuit to energize a large current carrying circuit to energize and carry high amperage to the starter.
I can see a bad contact in the solenoid/relay to cause starter to not turn as fast as it should, but I would not call that a drain or wind down