Tohatsu 3 hp 2 stroke on my inflatable. Starts fine, idles fine and runs good above 75 % throttle. Mid range has a very distinct miss. I suspect a rich mixture issue since good operation other than mid range precludes ignition. Carb has idle speed screw only. Disassembled gives a metering jet...
Hope this is not too long. I have twin 454 gen iv vdrive mercs. Cam lobe wiped on the older engine. Top end tear down in the boat. Found wiped lobe, #3 exhaust valve sticking a little. surface rust around OEM manifold riser joint. some loose
valve guides. Replaced one valve, hand lapped the...