1978-1982 Models 

MX4-MX6B, Qualifier  

Engine Parts

250 Piston 72mm (single ring), available in std bore, 1st, 2nd, 3rd oversizeFits: all 250 models except 1979 QualifierSprocket Lockwasher125-250 models$
250 Piston 72mm (double ring), available in std bore, 1st, 2nd, 3rd oversizeFits: all 250 models except 1979 QualifierCountershaft Sprocket Nut125-250 models$
250 Aftermarket Piston 72mm (double ring), available in std bore, 1st, 2nd, 3rd oversizeFits: all 250 models except 1979 Qualifier$89.95Kick start knuckle screwAll models$8.27
125 Piston PinFits:  1978-1982 125  1978-1982 125 models$18.00Countershaft SealAll models$17.98
Piston Pin Needle BearingFits: 1978-1982 all 2 stroke models$20.00Shift Drum WasherAll models
Piston Pin CirclipsFits: 1978-1982 all 2 stroke models$Kick start shaft1973-1977 models$140.72
125,175 Rod Kit (oil injection)Fits: 1979 Qualifier 175$Kick start return spring1973-1977 models$8.35
250 Rod Kit (oil injection)Fits: 1979 250 Qualifier$Kick start shaft pawl1973-1977 models$48.00
125,175,200 Cylinder Head Nuts (6pcs)Fits: all 125, 175, 200 models$Clutch Friction Plate1973-1977 models$
125,175,200 Cylinder Head WashersFits: all 125, 175, 200 models$125 Clutch Springs (6pcs)$34.80
125 Cylinder Head ShimFits:  1973-1982 125  1973-1982 125 models$175,250 Clutch Springs (6pcs)$34.80
175 Cylinder Head ShimFits:  1973-1984 175  1973-1984 175 models, 1985-1987 models$Clutch Spring Retaining Plate Screws (6pcs)$
250,350 Cylinder Head ShimFits: 1973-1987 air cooled models$6.40Clutch Spring Retaining Plate Lockwashers (6pcs)$
125,175,200 Cylinder Head StudFits: 1973-1987 air cooled models$Kick start Circlip$
125,175,200,250,350 Base GasketFits: 1973-1987 air cooled models$6.40Drain Screw Gasket$
125,175 Crank BearingsFits: 1978-1982 models$Oil Injection Filter$
125,175 Crank SealsFits: 1978-1982 models$370,400 Cylinder Head Nuts (6pcs)
125,175 Nylon Crank Ring Magneto Side$370,400 Cylinder Head Washers (6pcs)$
125,175, 250 Nylon Crank Ring Clutch Side$370,400 Cylinder Head Stud$
Oil Filler CapAll models$6.88370,400 Cylinder Head Shim
Magnetic Drain PlugAll models$19.58370,400 Cylinder Sleeve
Rotary Valve O-RingAll models$370,400 Base Gasket
Carburetor AdapterAll models$86.44370,400 Reed Pedals
125,175,200 Cylinder Studs$370,400 Piston Pin
125,175,200 Cylinder Nuts$370,400 Carburetor Mount
125 Gasket Set$59.10370,400 Piston (single ring) standard and oversize
175 Gasket Set$59.10370,400 Piston (double ring) standard and oversize
250 Gasket Set$59.10370,400 Nylon Crank Bearing Rings (pair)
125,175,200,250Crankcase Screw Set370,400 Crank Bearings
250 Crank Bearings370,400 Crank seals
TNT, Qualifier Rotary Valve$46.56370,400 Cylinder Stud
MX Rotary Valve$46.56370,400 Crankcase Screw Set
250 Cylinder Head Nuts (6pcs)370,400 Clutch Cover Screw Set
250 Cylinder Head Washers (6pcs)370,400 Clutch Friction Plate
250 Cylinder Stud370,400 Clutch Springs (6pcs)
250 Piston PinFits: all 2 stroke models except 1979 250 Qualifier370,400 Kick Start Shaft
250 Exhaust GasketFits: 250,370,400$6.40370,400 Kick Start Spring
Case PlugAll models$370,400 Shift Shaft
Clutch Cover Screw SetFits: 1978-1987 125-250 models except 1979 Qualifier 175,250 370,400 Gasket Kit$59.10
370,400 Clutch Cover Screw Set500 Sonic Gasket Kit
Kick start shaft sealAll models$11.45500 Sonic Timing Belt
Kick start knuckle$75.00
Kick start assembly$150.00

Electrical

$
Bosch CDI All 2 stroke models$
Spark Plug Wire$
Spark Plug Cap$
1982 Qualifier Headlight Lense$
1982 Qualifier Headlight Bulb$
Kill SwitchMX,Qualifier models$
Bosch 6 Pole Stator$
1979,1980 Qualifier Headlight Bulb$

Carburetor                                                            

Mikuni VM34 Jetted for 125 MX,TNT,Qualifier-needs replacement throttle cable&169.00Mikuni VM34 Needle Valve
Mikuni VM34Jetted for 175 MX,TNT,Qualifier-needs replacement throttle cable$Mikuni VM38 Floats
Mikuni VM34Jetted for 250 MX,TNT,Qualifier-needs replacement throttle cableMikuni VM34 Float Bowl Gasket
Inline Fuel FilterMikuni VM38 Needle Valve
Fuel PetcockFits: 1982 175-400 models$35.00Mikuni Jets
Gas Cap O-RingFits: 1973-1981 modelsMikuni Button Choke
Fuel Petcock and GrommetFits: 1978-1981 modelsCarburetor to airbox bootFits: Bing Carburetors
Fuel CapFits: 1982 Qualifier
Mikuni VM38Jetted for 370,400 MX and Qualifier Models
Mikuni VM34 Floats

  Tools

T

Bosch Flywheel Puller$52.00
Motoplat Flywheel Puller$49.00
Clutch Locking Tool

Suspension

Marzocchi 35mm Fork Seals (pair)Fits:125 models, 175,250,350 Qualifier models$18.00
Marzocchi 38mm Fork Seals (pair)Fits: 250,370,400 MX models,370,400 Qualifier models$18.00
Marzocchi Fork WipersFits: 35mm and 38mm forks$44.80
Steering Bearing KitFits: 1973-1978 all models$
Swingarm PivotAll models$24.00
Steering Bearing KitFits: 1979-1982 models$
Progressive Shocks (pair)$269.00
Hagon Shocks (pair)$269.00
Stadium Race Shocks$
Fork BootsFits: 1978-1982 models$19.95
Swingarm Needle Bearing KitFits: 1973-1980 steel swingarms
Aluminum Swingarm Needle Bearing KitFits: 1981-1982 aluminum swingarms
Chain Blocks (pair)Fits: 1979-1981 models
Swingarm ProtectorFits: 1978 models
Steering Stem O-Rings (pair)Fits: 1979-1982 models

Controls and Cables

$38.00Stock Throttle CableFits:  1978-1979 370  1978-1979 370 models
Renthal Vintage Bend Handlebars$82.00Sidepull Throttle CableFits:  1978-1979 370  1978-1979 370 models, uses Magura 314 throttle
Motion Pro Black Waffle Grips$Sidepull Throttle CableFits: 1980-1982 125-250 models, uses Magura 314 throttle
Motion Pro Vintage Style grips$Sidepull Throttle CableFits:  1980-1982 400  1980-1982 400 Models
Magura 314 Sidepull Throttle$34.95Decompressor LeverFits: Sonic models
Clutch Lever Assembly, Aftermarket$19.95
Front Brake Lever Assembly, Aftermarket$19.95
Qualifier Stock Throttle CableFits: 1979 Qualifiers$65.00
$65.00
Qualifier Sidepull Throttle CableFits: 1979 Qualifiers, Uses Magura 314 Sidepull Throttle$65.00
Clutch CableAll models$36.00
Rear Brake CableFits: MX6, 1980 Qualifiers$36.00
ShifterAll models$45.00
Kick Start Rubber$
$36.00
Odometer CableQualifier models$36.00
Stock Throttle CableFits: 1978,1979 125-250 MX models,1980 Qualifier 175-350
Sidepull throttle CableFits: 1978,1979 125-250 MX models, 1980 Qualifier 175-350 uses Magura 314 throttle
Stock Throttle CableFits: 1980-1982 125-250 models

Exhaust

$
Exhaust Mount6mm
Exhaust Springs (2pcs)
Aluminum Silencer125,175 models$155.00
Aluminum Silencer250-500 models$155.00
Exhaust Mount8mm
1982 Silencer AdapterFor mounting aftermarket silencer

Body

Front Fender1978-1982 all models$54.00Air Filter1982 175 and 250 Qualifier$26.00
Front Number Plate1978-1981 models$19.95Bolt Kit-zinc plated1978-1981models
Front Number Plate DecalMX modelsBolt Kit-Stainless1978-1981models
$Bolt Kit1982 models
Gas Tank Decals1978-1979 models$
Gas Tank Decals1980-1981 models
Gas Tank Decals1982 Qualifier
Front Fork DecalsMX4
Front Fork DecalsMX5Gas Tank Mounts1978-1982 all models$
Sidepanels1978 MX4, 1979 Qualifier models
SidepanelsMX5 models
Sidepanels1980,1981 models
Rear Numberplate Fender1982 175-400 Qualifier
Seat CoverMX4,MX5,1979 Qualifiers,1980 175-350 Qualifiers
Seat CoverMX6,1980 Qualifier 400
Seat FoamMX6,1980 Qualifier 400
MX5 Rear Fender
MX6 Rear fenderAlso fits 1980 Qualifier 400
Air Filter1978-1981 models, 1982 125 and 400 Qualifier$26.00

Wheels and Brakes

Front Wheel Bearing Kit
Front Brake Barrel
Front Brake Adjuster
Rear Wheel Bearing Kit1978-1979 models
Rear Brake Barrel
Rear Brake Adjuster
Snail Cam Chain Adjusters (aluminum)
Snail Cam Chain Adjusters (anodized aluminum)
Rear Wheel Bearing Kit1980-1982 models
Rear Brake Pedal Bushing1980-1982 Models
Rear Axle Washer
Rear Axle Nut
Front Axle Washer
Front Axle Nut
Rear Sprocket Tab Locks (3pcs)
Rear Hub Circlip1980-1982 models
Rear Sprocket Bolt Kit1978-1979 models
Rear Sprocket Bolt Kit1980-1982 models

Chain and Sprockets

13t Countershaft SprocketFits:125-250 models$26.0050t Rear Sprocket (gold anodized)Fits: 1978-1979 models
14t Countershaft SprocketFits:125-250 models$26.0013t Countershaft SprocketFits: 370,400 models
15t Countershaft SprocketFits:125-250 models14t Countershaft SprocketFits: 370,400 models
42t Rear Sprocket (aluminum)Fits: 1978-1979 models15t Countershaft SprocketFits: 370,400 models

44t Rear Sprocket (aluminum)

Fits: 1978-1979 models

44t Rear Sprocket (aluminum)

Fits: 1980-1982 models
47t Rear Sprocket (aluminum)Fits: 1978-1979 models

44t Rear Sprocket (gold anodized)

Fits: 1980-1982 models
50t Rear Sprocket (aluminum)Fits: 1978-1979 models

46t Rear Sprocket (aluminum)

Fits: 1980-1982 models

42t Rear Sprocket (gold anodized)

Fits: 1978-1979 models

46t Rear Sprocket (gold anodized)

Fits: 1980-1982 models
44t Rear Sprocket (gold anodized)Fits: 1978-1979 models

50t Rear Sprocket (aluminum)

Fits: 1980-1982 models
47t Rear Sprocket (gold anodized)Fits: 1978-1979 models

50t Rear Sprocket (gold anodized)

Fits: 1980-1982 models
 Brake                                       

   Snail Cam Chain Adjusters (aluminum)