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  1. K

    200 hpdi compression. Good or no good

    Thanks for the insight fellas. Going to run ring free at 2 ounces per gallon for a few gallons then run it at the normal rate thereafter. I’m seeing a lot about these being fuel sensitive, is that an octane sensitivity? What’s the best fuel to run to try and keep away from fuel related issues?
  2. K

    200 hpdi compression. Good or no good

    Oh boy…can I run some of the tuner while she’s on muffs a few minutes at a time a couple times and recheck? Or is that something I’m going to be WOT here and there for? Only worry is if rings are stuck and I’m out blasting around and one of the rings break, I’m really screwed.
  3. K

    200 hpdi compression. Good or no good

    Picked up a scarab powered by a 200 hpdi. Believe it’s a 2007-2008. Had it ran to assure there were no knocks, leaks, and tell tail works. All were fine. Bought the handy compression tester due to the fact that the boat had been sitting for about 2 1/2 years. These were the results. Low at close...
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