After a long year last year getting my motor running properly and finding a prop I was happy with. I starte all over again. A month or so ago I was running 6100 rpms at 68-70 loaded. Well for what ever reason it decided it was only gonna run 5400 rpms at about 60-61 mph. That lasted for two trips so I was thinking bad fuel. I drained both tanks and started over with fresh 93 octane. That didn't help much. Well it has decided it only wants to spin 4900-5000 rpms. I pulled the carbs off and cleaned,I did a decarb with power tune, put new fuel water seperator filter on. I had replaced primer bulb with an attwood but put the factory one back on. I pulled the fuel line off and checked for obstructions as well as the tank(no bbs in the fittings). I dont wanna start throwing parts at it again. I was just wondering if i missed anything?
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