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Suzuki df30a wont idle or run above 3k RPM

1376 Views 18 Replies 11 Participants Last post by  Rene L. Vila III
My 2016 Suzuki df30a wont idle and wont run above 3k rpm at around 2500-3k the boat sounds perfectly smooth (7 mph speed). I drained the fuel water separator and it was full of a clear white sand like sediment, I replaced the separator filter and inline fuel filter. I also notice the motor gets extremely hot but pees a solid fast stream of water.

I also pulled the spark plugs and noticed a lot of black carbon build up and they were just changed in January. My fuel consumption was also really bad when I traveled home 8 miles at 2500 rpms.

I tried emptying the tank and putting fresh new gas with some seafoam with no luck.

Should I try cleaning the fuel injector next or what do you guys recommend?
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6,011 Posts
Get to a Suzuki tech and find out what's actually going on... This is from a guy who has to have a motor working properly at all times... Seriously, sounds like your motor is in "SAFE" mode (or whatever the Suzuki equivalent is...) since something is seriously wrong... and needs repair...
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