has anyone tried to decrease pulley size=more speed?

Discussion in 'Mechanic and Repair' started by SILVERSTREAK INC, May 27, 2008.

  1. SILVERSTREAK INC

    SILVERSTREAK INC LawnSite Senior Member
    Posts: 295

    im about ready to sell my mower cause its about 2mph slower than my TT walkbehind

    its a 1998 25hp 60" exmark

    has anyone ever made the pump pullies smaller to increase speeed?

    figure the pmp will turn faster

    not saying by much, obviously too much would make it overheat/blow something
     
  2. sawman65

    sawman65 LawnSite Senior Member
    Posts: 751

    what kind of exmark?
     
  3. SILVERSTREAK INC

    SILVERSTREAK INC LawnSite Senior Member
    Posts: 295

    oh, rider serial in the 170 k's i think

    [​IMG]
     
  4. sawman65

    sawman65 LawnSite Senior Member
    Posts: 751

    if your lazer is slower than your tt then some thing besides the pullys is wrong. check to see that the lock bolts that hold the crontroll bracket it tight.
     
  5. Mic_bug

    Mic_bug LawnSite Member
    from N.B. MI
    Posts: 201

    larger tires will increase your ground speed for same engine speed
     

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