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  1. #1
    Click avatar for tech links/info, donation request K447's Avatar
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    Arrow Original domestic ignitions, CDI differences between 4060170 & 4060137? Usable 1200?

    I am attempting to get a borrowed SL900 on the water for this coming Friday. I am swapping in a 1200 engine from another project ski, the three cylinder Hurricane. That Hurricane has not seen water since I bought it.

    I am in the process of stealing the 1200 engine from the Hurricane and just discovered the CDI was not what I had expected to find on a 1200 red engine. This particular Polaris engine is actually from a Sugar Sands power boat, but as far as I know it is the same as the 1200 engines used in Genesis and other Polaris models.

    The SL900 engine still has the original non-updated ignition system (CDI 4060170), which I suspect was causing one of the problems I encountered over the past weekend. Even if it wasn't, an ignition update kit is now on its way. Eventually this 900 will be sorted out and have a new ignition. But not right now.

    That SBT 900 engine currently has a blown/torn rear crank seal despite being water tested only once by the owner since the engine was installed. In my hands the SBT 900 engine ran a total of maybe four minutes, tops. Apparent seizure at 5000 RPM, difficult to crank, then inconsistent no start and uneven cylinder temperatures when run without water on the trailer.

    Right now, that 900 engine is not usable and I need a working watercraft. Hence the 1200 engine got lifted out of the Hurricane.

    However, the CDI I found in the 1200 Hurricane (which was assembled from various parts by another owner before me) is 4060137, which Polaris parts search tells me is also for a 1997 SL900! Were there TWO different original CDI for the SL900 back in the day?

    Can I run this old 900 CDI with the 1200 engine and not hurt the engine?


  2. #2
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    I would think you could run it if it was all the non updated ignition parts. I am running a 4010447 in my Pro 1200, which came directly out of my updated ignition system on my SL 900. I was told by several very knowledgeable people that the 447 box was ok to run in a 1200. I would assume the timing curves between the 2 boxes would be similar. If I am wrong and there is something about the non updated ignition that I am missing, please chime in and correct me.

  3. #3
    Found this in my service manual the other day very useful!


    CDl Box Identification
    Refer to wiring diagrams in this section for more information and stator resistance specifications.
    Model CDl Box 10 # Ignition Timing @ 3000 RPM Ignition
    Timing*
    ± 1.5°
    Degrees BTDC Inches MM Deg I RPM
    1992 SL650 F8T16271 (Used with large 24° ±1.5 .139 3.54 18° / 6000
    harmonic balancer)
    1992 SL650 F8T16272 (Beginning serial 24° ± 1.5 .139 3.54 18° / 6000
    number PLE04039F292)
    1993 SL650 F8T16273 18° ± 1.5 .079 2.01 12° / 6000
    1993 SL750 F8T16273 16° ± 1.5 .063 1.59 10° / 6000
    1994/95 SL650/STD F8T16274 (65VV95) 18° ± 2 .079 2.01 12° / 6000
    1994/95 SL750, F8T32071 (75VV95) 24° ± 2 .139 3.54 16° /6000
    SLT750
    1995 SLX780 78VV95 28° ± 2 .188 4.77 18° / 6250
    1996 SLT780
    (EC78PVVE02 Engine) F8T33071 (PN 3240271) 28° ± 2 .188 4.78 18° / 6250
    (EC78PVVE03 Engine) F8T33074 (PN 3240289) 24° ± 2 ([email protected]) .139" 3.54** 18° / 6250
    (EC78PVVE05 Engine) F8T33074 (PN 3240289) 24° ± 2 ([email protected]) .139'· 3.54** 18° / 6250
    1996 SLX780 F8T33073 (PN 3240290) 28° ± 2 .188 4.78 18° / 6250 ._-
    1996 SL780
    (EC78PVVE02 Engine) F8T33071 (PN 3240271) 28° ± 2 .188 4.78 18° / 6250
    (EC78PVVE03 Engine) F8T33074 (PN 3240289) 24° ± 2 ([email protected]) .139** 3.54** 18° / 6250
    ._-
    1996 SUSLT 700 105-552.02 (4060117) 18° ± 2 ,0815 2.07 18° / 6250
    1996 Hurricane 4060117 20° ± 2 .1003 2.55 15° / 6250
    1996 SL900 4060137 18° ± 2 .0815 2.07 11 ° / 6250
    1996 SLTX 4060137 18° ± 2 .0815 2.07 11 ° / 6250
    1997 SL700 4060169 18° ± 2 .0815 2.07 18° / 6250
    1997 SL 700 Deluxe 105-552.02 18° ± 2 .0815 2.07 18° /6250
    1997 SLT 700
    1997 Hurricane 4060148 20° ± 2 .1003 2.55 15° / 6250
    1997 SL780/SLT780 F008T33074 24° ± 2 .1394 3.54 18° / 6250
    1997 SL900 4060137 18° ± 2 .0815 2.07 1P / 6250
    1997 SL1050 4060137 18° ± 2 .0815 2.07 11 ° / 6250
    1997 SLTX 4060137 18° ± 2 .0815 2.07 11 ° / 6250
    1998 SLH 4060148 18° ± 2 .0815 2.07 13°± 2/6250
    1998 SLTH 4060148 18° ± 2 .0815 2.07 13°± 2/6250
    1998 SLXH 4060180 18°+0,-2 .0815 2.07 11 °+0..2/6250
    1998 SLTX 4060180 18°+0,-2 .0815 2.07 11 °+0,-2/6250
    *Ignition timing specification for high RPM - Check at specified RPM (6000 or 6250) not operating RPM.
    **780 03 or 05 Engines - Timing should be checked at 1500 RPM on 780 03 and 05 engines for best accuracy.
    The 03/05 ignition timing specification is 26.5° at 1500 RPM (.163/1 or 4.14mm).

  4. #4
    and from the genesis manual I found this info. Don't see any thing here that can help you, but I wanted to post both for the search engine.

    2002 Ignition Timing / CDI Specifications
    Model
    Ignition Timing
    CDI Box
    Degrees BTDC Inches MM
    Freedom 20° @ 3000 RPM .100 2.55 4010568
    Virage 20° @ 3000 RPM .100 2.55 4010568
    Virage TX 23° @ 3000 RPM .137 3.47 4010567**
    Virage i
    Virage TXi
    Genesis 23° @ 3000 RPM .137 3.47 4010567**
    Genesis i
    **PHASED CDI Ignition System.

  5. #5
    Click avatar for tech links/info, donation request K447's Avatar
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    Quote Originally Posted by dswelch View Post
    Found this in my service manual the other day very useful!


    CDl Box Identification
    ...
    Model CDl Box 10 # Ignition Timing @ 3000 RPM Ignition
    Timing*
    ± 1.5°
    Degrees BTDC Inches MM Deg I RPM
    ...
    1997 SL900 4060137 18° ± 2 .0815 2.07 1P / 6250
    1997 SL1050 4060137 18° ± 2 .0815 2.07 11 ° / 6250
    ...
    *Ignition timing specification for high RPM - Check at specified RPM (6000 or 6250) not operating RPM.
    ....
    I do not have my manuals handy.

    What are the comparable specs for the 1200 red engine, say 1999 or 2000 year?

  6. #6
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    1999 specs for the genesis and X45 are 18°±2 @3000 13°±2 @6250

  7. #7
    Click avatar for tech links/info, donation request K447's Avatar
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    Quote Originally Posted by BryanP View Post
    1999 specs for the genesis and X45 are 18°±2 @3000 13°±2 @6250
    So the stock CDI for the 1200 engine has slightly more advance at top end than the 900/1950 engines.

    Sounds like the original style 900 CDI will be safe to run on this 1200 then

  8. #8
    Rasta Mon Condoms We Be Jammin!!!!! TxVirageTx's Avatar
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    keep in mind your talKing about different stroke crankshafts, and these cdis are triggered at around 40 degrees advanced and RETARD the ignition down to the specs you see.

    stock trigger setting for my 2 2000 1200 motors was at .350" btdc

  9. #9
    Click avatar for tech links/info, donation request K447's Avatar
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    These engines are indeed different strokes, but degrees are degrees.

    If the 1200 CDI was stock with more degrees of advance than the 900 CDI then the 1200 engine with 900 CDI will run slightly 'retarded' relative to a genuine 1200 CDI. Sub optimal for peak power but safe for general operation.

    All I need for now is a CDI and timing curve that will not hurt the motor for the time being. Later on I will install proper Gen III ignitions.

  10. #10
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    I was told by a few people that you wouldn't even notice a difference running a 900/1050 CDI as opposed to the 1200 CDI. My Pro runs great with the 900 CDI in it.

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