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  1. #1
    jajardas's Avatar
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    What is the max RPM's for a 2003 MSX?

    I think I saw it on here somewhere but cannot find it. What is the max RPM's on a 2003. Have been running at 6600 to 6650 for the pass few days. GPS says max speed of 53 MPH but wish o meter hits 65. Just wondering if this is the top RPM?


  2. #2
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    Quote Originally Posted by jajardas View Post
    I think I saw it on here somewhere but cannot find it. What is the max RPM's on a 2003. Have been running at 6600 to 6650 for the pass few days. GPS says max speed of 53 MPH but wish o meter hits 65. Just wondering if this is the top RPM?
    Thats all mine runs most of the time. I can get to 56-58 on GPS if I stay in the throttle long enough.

  3. #3
    Click avatar for tech links/info, donation request K447's Avatar
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    MSX 140 with a fresh engine and good impeller should run about 6800-6900 depending on air temperature, water conditions, etc.

    Right around 6700 is common the rest of the time.

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    jajardas's Avatar
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    Thanks guys. I was just wondering because it is new to me.

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    My 2004 will hit 6900 on relatively calm water, and eventually 'bounce' off it down to about 6700, then go back up again. When getting air off of waves, I see it shoot up to about 7200 because there is no resistance on the impeller.

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    jajardas's Avatar
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    UPDATE... Had my blue 2003 MSX out last night running up and down the river with my little lady on the back we ran 6750 for about 1/4 mile the rest of the time we were right at 6600 =/- 50. We were sitting as far back on the seat as we could. I only had my right index finger on the handle bars holding the throttle down.

  7. #7
    Click avatar for tech links/info, donation request K447's Avatar
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    Quote Originally Posted by jajardas View Post
    ... Had my blue 2003 MSX out last night running up and down the river with my little lady on the back we ran 6750 for about 1/4 mile the rest of the time we were right at 6600 =/- 50...
    Sounds like it is running just fine

  8. #8
    jajardas's Avatar
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    Yes, it is running great. Need to get the hull repair on my red 2003 MSX and the SLX I just add to the Polaris fleet back together so I can try it.

  9. #9
    pro12,txi,msx140 SMOKEWAGON's Avatar
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    I have a msx 03 and a 04, I removed the front storage can from up front and put the fire ext in the rear on top of the resonator this lightens the bow a bit, just remember to add some more gasket up front to seal out the water. Do some testing yourself see if it helps.

    smoke wagon,

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