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Thread: 250xs owners review
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04-27-2009, 11:57 AM #16Member
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I've been advised running 89 octane in a 2006 and later Racing Opti will help it idle smoother. There is also some advice out there that opening up the plug gap to .040" will help idle quality. My 08 idles very nicely with 89 octane and no change to the gap.
Most of what I've read indicates reduced horsepower with 91 and above octane.
BTW, there is some good reading and factory supported info over on the Bassboat Central forum (BBC) in the "Mercury 3 Liter Hi Performance" section. The mod is Don Weed, the GM of European Marine in South Carolina.
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04-27-2009, 12:29 PM #17
Thanks for the info and the tip about BBC
22' Activator w/ 250xs Merc Opti, back home again
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04-27-2009, 04:21 PM #18Banned
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blkmtrfan, are you planning on taking advantage of the Merc Smartcraft capability? The gauges are quite reasonable and have some killer color and trim combos....Dealers these days will really hook you up with New products, anything to keep the staff and lights going......Trust me, work'em good..
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04-27-2009, 06:00 PM #1922' Activator w/ 250xs Merc Opti, back home again
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04-27-2009, 09:37 PM #20
I have 2 of them on my center console, you will not believe the saving on the fuel consumption.
You will think your gas gauge is broken!!!!BLAZER BAY 2400 SUZUKI 250 4 STROKE
18FT ASTRO BASS BOAT 200 MERC
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04-28-2009, 10:55 AM #21Member
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05-27-2009, 12:53 PM #22
just repowered with a 2005 250 xs and only plan on running 91+
it has 166 hrs and will update soon.
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05-27-2009, 03:01 PM #235000 RPM
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250xs
I really like my 2006 250ProXS,quiet and sips 89 octane!!