Front Axle

Schematic: F-10 Front Wheel
Affected/related parts: front fork


Variation 1: Early style different diameter axle

  • Distinguishing features:
    • There is a thicker 17mm section on the right side of the axle
  • Part number(s):
    • 44311-028-000: frame number 111,565 to 640,254
  • Early or Late: Early
  • Matching/required parts:
    • Early front fork (with removable axle holders)
    • Front wheel side collar (17mm OD, at left of the picture below)
    • 17x37x7 oil seal [part 90755-028-000]
  • Notes:
    • This style axle matches the early front forks with the detachable axle holders
    • This axle requires a 10x1.25 (fine thread) nut which is a discontinued Honda part and a bit harder to find.  [part 90305-001-000]








Variation 1: Late style single diameter axle

  • Distinguishing features:
  • Part number(s):
    • 44301-229-000: superceded
    • 44301-229-010: frame number 639,755 to 930,010 (has thru-hole end)
    • 44301-107-000: frame numer 930,011 onward (has captured nut end)
  • Early or Late: Late
  • Matching/required parts:
    • Late front fork (single piece)
    • 21x37x7 oil seal [part number 90755-229-000]
    • Side collar (spacer) with 21mm OD [part 44311-028-000]  
  • Notes:
    • This style axle matches with the late style single-piece front fork
    • This axle requires the more common 12mm axle nut.  [part 90305-028-000]



Rear Fork (Swingarm)

Schematic: F-26 Rear Fork
Affected/related parts:


Variation 1: Early Style with Straight Bar
  • Distinguishing features:
    • The bar connecting the two arms looks like a straight tube
  • Part number(s):
    • 52100-028-601Z 
    • 52100-028-602Z
  • Early or Late: Early
    • Frame number 111,565 to 142,498 and 424,487 to 499,220
  • Matching/required parts:
  • Notes:
    • Luckily, either version of the Chain Case fits on either version of the swingarm





Variation 2: Late Style with Curved Bar

  • Distinguishing features:
    • The bar connecting the two arms has a curve to it
  • Part number(s):
    • 52100-028-603Z
  • Early or Late: Early
    • Frame number 499,221 onward
  • Matching/required parts:
  • Notes:
    • Luckily, either version of the Chain Case fits on either version of the swingarm


Transmission

Schematic: E-12 Transmission



Variation 1: Early Style with 10 Narrow Splines

  • Distinguishing features:
    • There are 10 splines on the shaft and gears, and they are narrower than those on the Late style
  • Part number(s):
  • Early or Late: Early








Variation 2: Late Style with 6 Wide Splines

  • Distinguishing features:
    • There are 6 splines on the shaft and gears, and they are wider than those on the Early style
  • Part number(s):
  • Early or Late: Late








Side by Side (Early=Left, Late=Right)






Clutch Outer Cover Gasket (or O-ring)

Schematic: E-7 Clutch
Affected/related parts: Clutch outer cover


Variation 1: Early style O-ring

  • Distinguishing features:
    • A perfectly circular o-ring (as opposed to the Late gasket with holes for the fastener)
  • Part number(s):
    • 91302-030-000
  • Early or Late: Early
    • Frame number 111,565 to 142,498 and 424,487 to 527,510








Variation 2: Late style Gasket

  • Distinguishing features:
    • A gasket that includes holes for the 2 cover fasteners
  • Part number(s):
    • 22112-028-000
  • Early or Late: Late
    • Frame number 527,511 onward



Gear Shift Fork

Schematic: E-9 Gear Shift Fork
Affected/related parts: Shift drum


Variation 1: Early style with Bolt

  • Distinguishing features:
    • The forks are secured to the drum using a bolt and locking washer
  • Part number(s):
    • 24221-028-010 (Left)
    • 24211-028-010 (Right)
  • Early or Late: Early
    • Frame number 111,565 to 142,498 and 424,487 to 527,510






Variation 2: Late style with Pin and Clip

  • Distinguishing features:
    • The forks are secured to the drum using a pin and clip
  • Part number(s):
    • 24221-028-335 (Left): frame number 527,511 onward
    • 24211-028-030 (Right): frame number 527,511 to 583,760
    • 24211-028-345 (Right): frame number 583,761 onward
  • Early or Late: Late


Inline airbox cover

Schematic: F-14 Air Cleaner
Affected/related parts:



Variation 1: "Pearl Gray" plastic version

  • Part numbers:
    • 17251-028-020XM (left side)
    • 17231-028-050XM (right side)
  • Frame number 527,511 to 679,640





Version 2: Chrome version

  • Part numbers: 
    • 17251-028-670XW (left side)
    • 17231-028-670XW (right side)
  • Frame number 679,641 onward

Left Crankcase Cover Gasket (Dynamo)

Schematic: E-4 Left Crankcase Cover - Dynamo
Affected/related parts: Left crankcase cover, left crankcase


Variation 1: Early style squared off corner at bottom right
  • Part number(s):
    • 11394-028-010, frame #111,565 to 142,498 and 424,487 to 527,510
    • 11394-028-020, frame 527,510 to 646,093





Variation 2: Late style with extra hole at bottom right
  • Part number(s):
    • 11394-028-030
  • Early or Late: Very late
    • Frame number 646,094 onward