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Full throttle - duty cycle - prudence of use?

Beachbummer

Jetboaters Admiral
Messages
4,058
Reaction score
2,976
Points
352
Location
Houston TX
Boat Make
Yamaha
Year
2008
Boat Model
SX
Boat Length
23
So, enjoying my sx230 so far so good. Top speed is a little lower than it should be, but that can wait until the end of the season. I suspect the pumps need to be re siliconed.


Anyway, how often and how long do you run WOT? I average 30to 60 seconds for every hour of operation, or less.... A bit of a chicken wanting to baby the boat and make it last all i can

Is this justified and helpful?

What's everyone else doing, conciously or not?

Thanks!!!
 
WOT as often and as long as I can... until finally my wife smacks me upside the head and yells "SLOW DOWN".... (holding her chest).... ;)
 
I run very limited time at 10K, only because
1. it gets to bouncy/rough
2. burns to much fuel

I'm not worried at all about the internals of the engine being able to maintain it for any sustained amount of time.
 
I can't take what the boat would do to me wot on lake Michigan.
 
I agree with @Scottintexas . No worries about the engine handling 10k rpm for extended periods but it burns A LOT of fuel up there.
 
So, enjoying my sx230 so far so good. Top speed is a little lower than it should be, but that can wait until the end of the season. I suspect the pumps need to be re siliconed.


Anyway, how often and how long do you run WOT? I average 30to 60 seconds for every hour of operation, or less.... A bit of a chicken wanting to baby the boat and make it last all i can

Is this justified and helpful?

What's everyone else doing, conciously or not?

Thanks!!!
I wouldn't worry about this at all. I know I don't. These are continuous duty rated engines - in other words, the engine was designed and rated for uninterrupted service at 100% full rated power for an unlimited number of hours per year.

EDIT: different story, but kind of the same - we have some NE fishermen friends who run commercially, many like two-stroker o/b - run those WOT for about 2,000 hours and then swap.

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