Went out to Lone Oak, Tx and picked up a 73 402 40hp merc for $125. It spins and the lower unit is good. So far I've rewired the ignition coils. I'll pickup a compression tester off eBay and test the compression when it comes in. I'm gonna bet it's around 100+ if it's lower I'll rebuild it. If higher I'll ride it out and pick up parts before rings and such before they become obsolete. How low can the compression be before it is considered unusable? The po didn't realize the ignition coil wires were toast.
Sent from the dust in front of you!