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    1977 Blizzard ss

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    • Member since
      March 2012
    1977 Blizzard ss
    Posted by Clyde on Wednesday, March 21, 2012 8:31 AM

    I have bought a 1977 ss blizzard  and need some input. Could someone help with the clutches on this machine? Not sure what to put  on it for primary or secondary clutches. All factory stock.

    Tags: Skidoo
    • Member since
      July 2005
    • From: centeral N.Y.
    Posted by 77srx on Thursday, March 22, 2012 2:04 PM

    I'm putting a micro belmont three pole reactor for the drive and a polaris secondary on my 77 blizzard grass mod 440.

    • Member since
      July 2005
    • From: Lower Michigan
    Posted by MiModRacer on Friday, March 23, 2012 10:51 PM

    Best guess would be polaris drive & driven.   Polaris blue sp in drive with polaris 38 to 40 g race curve wts... In driven HRP Grey sp in Ctr hole & 38 strait cut polaris Helix in a button driven  to start with.  If you can't pull the rpms , grind on the wts. Gear it for 100 mph at full shift as your probably only going to be going 87-90 mph in 660 on ice.  I say that cause a Modern 440 Mod in Heavy Mod is about a 97 to 101 mph sled & Those rotax motors have at least 10 hp on you if not more as the 77 motor is not as good as the 78-79 versions .MMR

    • Member since
      July 2005
    Posted by Dick from Wellston on Saturday, March 24, 2012 9:06 AM

    77Blizzard's have single exhause, where the 78 & 79's have thripple exhause, yes 10 more hp

    Craig is right on the clutches, but I think 40 to 42 grams on the weights. I like stiff springs, and heavy weights.

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