Demand in your local area determines what you can get for it.-----Ability to get repairs from a shop determines the demand for older motors.----Is this an inline 6 cylinder ?
Cranking speed has nothing to do with making the spark on that motor.----Checked the rotor ?----Distributor cap ?---Likely the " amplifier " or CD module is bad.----Most of the time a new coil is suggested when replacing the amplifier.
A compression test is the #1 step to take in trouble shooting any outboard motor.----Simple to do.-----Could be a blown head gasket or worse.----Also test spark as it could be running on just 1 cylinder.
It seems most people focus on carburetors in their first outboard fixing attempt..---What is your motor doing / not doing.?------Compression test numbers ?---Are you mixing fuel at 50:1 or relying on the automatic system.----Have you installed a new impeller ?----How did it run for you last...
The 33 HP was marketed from 1965 to 1970.----An excellent , simple , reliable and easy to maintain motor.---That boat would do about 30 MPH.----Your location ?----Lots of props listed on " flea-bay" I am sure.
Yes and no.-----First check the flywheel key.----If it is not sheared you can use a timing light.----But timing on these motors does not go out of adjustment.-----What is your motor doing / not doing ?
Yes----I have a few of those " towers of power " motors.-----But I would get blisters on my typing fingers explaining where this part hooks up.----Up to you to look where the other broken pieces are.----Be an easy fix here,-----I step aside now.
Sorry----There is absolutely no reason for 2 stroke in good condition to stall !!----I would do a compression test first for trouble shooting and future reference.----Post your numbers.