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Thread: Mm600 to 700 info

  1. #1


    Default Mm600 to 700 info

    So long story short I sent the rod of my kids mm600 through the case. So motor is shot really made a mess of everything. Question is I've seen alot more redhead 700 motors than redhead 600s, what would all need to be changed to go to a 700 over the 600? Carbs? Pipe?cdi?

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  2. #2


    Default

    Quote Originally Posted by sdviper700 View Post
    So long story short I sent the rod of my kids mm600 through the case. So motor is shot really made a mess of everything. Question is I've seen alot more redhead 700 motors than redhead 600s, what would all need to be changed to go to a 700 over the 600? Carbs? Pipe?cdi?

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    do some looking at part numbers , when i was looking for carb parts for my 700 i believe i saw that they fit both the 700 and 600 with the only difference being the jetting. it would be cheaper to buy a carb kit containing all the jets and gaskets for a 700. the exhaust is the same between the 2 motors


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  3. #3


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    I did a 600 twin to 700 triple swap in mine.
    Easiest way to see what can stay, is go on a parts website and check part numbers to see whats the same.
    Some things that come to mind that may be different:
    Wiring harness/CDI
    Carbs - 600 get a 31mm and 700 get 33 ? cant recall..
    jetting
    clutching
    gearing
    -------------------------
    1997 Yamaha XTC
    700 Redhead, Mr. Viper ported, CPR pipes, SRX reeds, Heelclickers, Dual bulb, LT Ohlins

    1997 700 SX
    Thinned head gasket, Gutted Airbox, Reed Spacers, Bender Pipes, Viper Shocks, 51/43 helix 89L weights

    2004 Viper S
    SLP pipes, peak performance head,

    2001 SRX 700
    Power Inc. Pipes, Loaded 8DN20's, Hauck Y 51/45

    1997 Mountain Max 700
    Black XTC Hood, Thinned Head Gasket, Gutted Air Box, Reed Stopper Notch, SLP Pipes

  4. #4
    Senior Member Open Mod Vincent's Avatar
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    Default

    Wireing should be the same. Carbs are 31 vs 33mm . CDI have different part numbers but I've interchanged them without noticing any difference. Exhausts are the same, as are engine mounts. Clutch weights and spring will be different as will be chaincase gearing.

    Me and my brother own 600 and 700 triple long track Ventures and these have been my observations between them.
    Last edited by Vincent; 01-09-2020 at 04:35 PM.
    2000 Venture 700

    -Head gasket thinned
    -Stainless reed stoppers notched
    -Cobra 1.35 x 136" track
    -Home made transfer rod
    -Boss Seat
    -Apex helix, 8ch weights, +2.8g per tip, wpw spring, 8dn belt, green sec @ 70
    -22-39 gears with reverse
    -Rox 3" risers
    -Plastic skis
    -Drilled can
    -Electric start system and ring gear removed.
    -LED headlight and tale light

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