DRIVETRAIN
COMET 108 4-PRO
  • Added fourth load-bearing member increases roller and button life
  • These race clutches are for high-performance applications ONLY
  • Clutch uses four clutch weights to greatly enhance tuneability
  • To determine arm, add weight of three arms used in 108-EXP, add 14%, then divide by four;
  • this will be the new arm weight to use
  • Arms can be used in sets of two to better zero-in on desired weight
  • Uses same springs as 102-C and 108-EXP clutches
  • increased durability
    NOTE: For calibrations contact a high performance specialist or Certified Parts Corporation.
    SUG. RETAIL .......................... $499.95
    DESCRIPTION
    P ART  #
    DESCRIPTION
    P ART  #
    DESCRIPTION
    P ART  #
    1140-0090
    Flush, w/ Polaris gear bosses
    1140-0091
    7.5:1 taper w/ Ski-Doo gear bosses
    1140-0092
    COMET 108-EXP
    HIGH-PERFORMANCE CLUTCHES
  • Designed for more power, more endurance, more of everything you need for speed – and now
  • accept OEM starter rings for electric starters
  • Consistently smooth shifting even after hours of use
  • Wider rollers for increased bearing area (33% more)
  • 1997 and newer 108-EXP clutches include special recessed mounting bolt with special pilot washer
  • Each features a bushing in the movable face and redesigned fixed face for increased durability
  • NOTE: A flush bore depth indicates the taper begins exactly at the inner edge of the fixed face casting.
    Positive (+) numbers indicate the taper starts the specified distance into the casting; while negative (-)
    numbers indicate the taper begins in an extension out of the fixed face casting. See illustration on
    Parts Identification page. Belt width can be adjusted on clutch models that list more than one dimension.
    Std. = Clutch is pre-set to the belt width listed. Opt. = Clutch can be adjusted to the belt width listed.
    NOTE: Change any 108-EXP clutch to accept 1 7 / 16 ” belt width by installing one spacer washer under the spider
    washers from belt spacer kit PART #214393.
    BORE DEPTH
    DESCRIPTION
    BELT WIDTH
    P ART  #
    SUG. RETAIL
    30mm tapered flush
    Flush, w/ Arctic Cat gear bosses
    1 3 / 8 ” (std.)/ 1 7 / 16 ” (opt.)
    1140-0085 2
    $374.95
    Flush, w/ Yamaha gear bosses
    1 3 / 8 ” (std.)/ 1 1 / 4 ” (opt.)
    1140-0088 2
    374.95
    Flush, w/ Polaris gear bosses
    1 3 / 8 ” (std.)/ 1 1 / 4 ” (opt.)
    1140-0086 2, 3
    374.95
    30mm tapered +.200”
    +.200 Ski-Doo deep bore
    1 3 / 8 ” (std.)/ 1 1 / 4 ” (opt.)
    217504
    399.95
    Flush, w/ Ski-Doo gear bosses
    1 3 / 8 ” (std.)/ 1 1 / 4 ” (opt.)
    1140-0089 2
    374.95
    30mm tapered -.140”
    -.140 shallow bore
    1 1 / 4 ” (std.)/ 1 3 / 8 ” (opt.)
    217506
    399.95
    30mm tapered +1.02”
    7.5:1 taper w/ Ski-Doo gear bosses
    1 3 / 8 ” (std.)/ 1 1 / 4 ” (opt.)
    1140-0087 2, 4
    374.95
    1:10 taper w/ Arctic Cat gear bosses
    1 3 / 8 ” (std.)/ 1 1 / 4 ” (opt.)
    1140-0062 1, 2
    374.95
    1 For Arctic Cat models with 33mm crankshaft.
    3 Not for use on models with 33mm shaft.
    4 Not for any Ski-Doo 08-10 models with 90-tooth OEM ring gear.
    COMET 102-C
    HIGH-PERFORMANCE CLUTCHES
  • 102-C clutches are available for 1 1 / 4 ” and 1 5 / 16 ” belt widths
  • See Comet’s 108-EXP clutches for 1 3 / 8 ” belt widths and additional 1 1 / 4 ” widths
  • Especially suited for high-performance use
  • change cam arms and spring
  • Must purchase cam arms and spring separately
  • face casting. Positive (+) numbers indicate the taper starts the specified distance into the casting,
    while negative (-) numbers indicate the taper begins in an extension out of the fixed face casting.
    NOTE: All 102-C clutches can be set for 1 5 / 16 ” belt widths by adding one PART #207398A belt spacer.
    SUG. RETAIL .......................... $375.95
    BORE- DEPTH
    BELT WIDTH
    P ART  #
    BORE- DEPTH
    BELT WIDTH
    P ART  #
    30mm tapered--.245”
    1 1 / 4
    208300
    30mm tapered-flush
    1 1 / 4
    212600
    30mm tapered--.250”
    1 15 / 64 ”-1 1 / 4
    208301 1
    1 Application is limited to twin-cylinder Yamaha models with an oil pump gear
    1 5 / 16
    208302
    attached to the back side of the clutch. Will not fit GP433 1974-75 or GP440 1976.
    30mm tapered--.200”
    1 1 / 4
    208306
    2017 PARTS UNLIMITED SNOWMOBILE