What is the difference ? Do they still make the 250xs in the racing division like the 300xs ? I know the xs engines were built to run 6300 rpms and run 92 octane gas, is this still the case?
What is the difference ? Do they still make the 250xs in the racing division like the 300xs ? I know the xs engines were built to run 6300 rpms and run 92 octane gas, is this still the case?
The primary difference between the 250XS, 250 SportXS, and the 250 ProXS are the gearcase options.
250 ProXS: Verado Style (Production) Gearcase
250XS: Torquemaster Gearcase
250 SportXS: Sportmaster Gearcase
All three utilize an identical powerhead. All utilize 87 octane fuel.
There are also warranty differences (Racing engines carry shorter warranty periods).
There are additional models of the 250XS and 250 SportXS available with various midsection and trim system configurations (primarily for offshore use).
Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
Still consider myself a "Marine Apprentice" after 48 years (learn something new every day).
Mercury Parts, Mercury Outboards, Smartcraft & Accessories, Injector Service, TDR Reeds- BBC Sponsor
<table width="90%" cellspacing=0 cellpadding=0 align=center><tr><td>Quote, originally posted by EuropeanAM »</td></tr><tr><td class="quote">
All three utilize an identical powerhead. All utilize 87 octane fuel. </td></tr></table>
Do some of the older 250xs run on 91+ octane?
Mine has a sticker that says 91+ ( I know i probly already answered my own question) but just needed confirmation from a GURU
Noland
"Slower than a speeding Bullet, but faster than a Cookie Cutter."
The 2003 and 2004 250 xs had the low rev limit of 5850 and required premium minimum 91 octane fuel. The 2005 250 xs had the 6300 rev limit but still required the 91 octane. The 2006 and newer 250 pro xs have both the 6300 rev limit and the regular 87 octane fuel requirement...
<table width="90%" cellspacing=0 cellpadding=0 align=center><tr><td>Quote, originally posted by canadablazer »</td></tr><tr><td class="quote">The 2003 and 2004 250 xs had the low rev limit of 5850 and required premium minimum 91 octane fuel. The 2005 250 xs had the 6300 rev limit but still required the 91 octane. The 2006 and newer 250 pro xs have both the 6300 rev limit and the regular 87 octane fuel requirement...
+1
Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
Still consider myself a "Marine Apprentice" after 48 years (learn something new every day).
Mercury Parts, Mercury Outboards, Smartcraft & Accessories, Injector Service, TDR Reeds- BBC Sponsor
<table width="90%" cellspacing=0 cellpadding=0 align=center><tr><td>Quote, originally posted by canadablazer »</td></tr><tr><td class="quote">The 2006 and newer <u>250 pro xs </u>have both the 6300 rev limit and the regular 87 octane fuel requirement...
better check that on the proxs...i got a revision from mercury in the mail to put in my owners manual....it states that the 6300 rpm limit on the <u>250 PRO XS </u>is wrong and the max rpm for the motor is 6000 rpm..... some manuals was correct and some was printed wrong...........fyi
<table width="90%" cellspacing=0 cellpadding=0 align=center><tr><td>Quote, originally posted by Rollo331 »</td></tr><tr><td class="quote">
better check that on the proxs...i got a revision from mercury in the mail to put in my owners manual....it states that the 6300 rpm limit on the <u>250 PRO XS </u>is wrong and the max rpm for the motor is 6000 rpm..... some manuals was correct and some was printed wrong...........fyi</td></tr></table>
Recommended Maximum RPM and "Rev Limit Setpoint" are two different things.
The recommended RPM range is indeed 5500-6000 RPM.
Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
Still consider myself a "Marine Apprentice" after 48 years (learn something new every day).
Mercury Parts, Mercury Outboards, Smartcraft & Accessories, Injector Service, TDR Reeds- BBC Sponsor
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