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Thread: Pro 785 CDI ?

  1. #1
    Canadian Beaver Inspector jkindt's Avatar
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    Pro 785 CDI ?

    What is the difference between the 1997 Pro 785 CDI and the 1998+ CDI's? Which one would be better to use in my Sleeper project? For those not familiar click the 'Current Plan' link in my sig. for an overview.


  2. #2
    I'D RATHER SWEAT THAN SHIVER hyoctane23's Avatar
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    Timing curve...32 degrees @ 3000 RPM with the '97 vs. 36 degrees @ 3000 RPM with the '98.

  3. #3
    Canadian Beaver Inspector jkindt's Avatar
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    This may open a big debate, but which one is better? There has to be such a thing as too much advance! I don't want to burn up my pistons, but I also want to utilize the advantages of my PSI cylinders and the high compression OP head. I was going to just use my '94 650 CDI but I am concerned that the rev limiter will be too low for real power.

  4. #4
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    The 97 is recommended for a 650/750/780 conversion because of your reasoning.

  5. #5
    Watcon's Avatar
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    CDI difference

    The big difference between the 1997 and 1998+ is the exhaust valves.. The 1998+ raise the exhaust valves 2mm higher. The 4º initial timing difference was added because the 1998 785 Pro weighs 40 lbs more thean the 1997.. haha!


    Randy

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