Speed limited Blackhawk
#11
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#13
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By rights, the fuel tank should have been drained and system flushed (4-5 years little use).. dirty fuel only creates bad burn and detonation.... and headaches.
What condition is your ignition system in - plugs, caps and wires? they will rob you rpm on top of the weak fuel
What condition is your ignition system in - plugs, caps and wires? they will rob you rpm on top of the weak fuel
Once i I know the overall operation of the engine is good (from a sensor/wiring, etc i plan to power up the engine (this winter). Nothing worse than carrying a problem into a new build. I suspect any overall speed concern or gap will go away afterwards!
#14
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#15
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cleaning the injectors sounds like a good thing to do.... especially since the boat is running better each time I run it.
who is BUP
#16
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#18
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Do this ^^^^^^^ 10,000% correct. Dare you to ask me how I know haha. The fuel injectors in these Merc motors are horrible, especially when laid up for long periods. I have same motors and an injector that flowed 24% low roasted my piston and ruined my day and month. Engine even "felt" like it was running "good" too!