Before I get started let me take responsibility by saying my '92 40 hp Yamaha will not crank because I left gas in it for a couple of years without properly preparing it for storage. Nobody's fault but mine. Now that I'm trying to get it back on the water it is kicking my butt. The engine turns over fine it just will not fire up.
Here is what I have done so far.
Cleaned out portable gas tank and refilled with fresh gas, oil and Seafoam.
Replaced gas line and primer bulb assembly.
Checked and cleaned fuel filter. (was not dirty)
Replaced spark plugs.
Removed, cleaned and reinstalled fuel pump.
Removed all 3 carburetor bowl drain plugs and cleaned bowls out with carb and choke cleaner.
Removed all 3 carburetors, disassembled, cleaned, reassembled and reinstalled. (top one was ok, middle and bottom were full of "varnish")
I tried cranking after each one of these procedures with no luck. It did run for a couple of seconds after spraying carb and choke cleaner into the carbs.
Any help would greatly be appreciated.
THANKS
Here is what I have done so far.
Cleaned out portable gas tank and refilled with fresh gas, oil and Seafoam.
Replaced gas line and primer bulb assembly.
Checked and cleaned fuel filter. (was not dirty)
Replaced spark plugs.
Removed, cleaned and reinstalled fuel pump.
Removed all 3 carburetor bowl drain plugs and cleaned bowls out with carb and choke cleaner.
Removed all 3 carburetors, disassembled, cleaned, reassembled and reinstalled. (top one was ok, middle and bottom were full of "varnish")
I tried cranking after each one of these procedures with no luck. It did run for a couple of seconds after spraying carb and choke cleaner into the carbs.
Any help would greatly be appreciated.
THANKS