Click Here for Mikuni Carburetors Diagram with TEC Part Numbers
Mikuni HSR42/45/48 Carburetors

Mikuni Carburetors
All kits are supplied with Plain Finished Carburetors. Kits may also be ordered with Polished carburetors, ask TEC for details. Carb’s are designed to be used with CV cables.

Total Kit includes: manifold, rubber flange, chrome cover K&N filter, breather kit and manual. Uses stock cables.

EZ Kits: Uses stock cables, manifold and chrome covers. 1984-89 Bikes Must change to CV cables
TEC # Description Mikuni 42mm    
85899 42mm Carb    Body only Plain
85900 42mm Carb    Body only Polished
85901 42mm Total Kit Twin Cam 88 Plain
85915 42mm EZ Kit Twin Cam 88 Plain
85905 42mm Total Kit Big Twin ‘84-99 Plain
85898 42mm EZ Kit Big Twin ‘90-99 Plain
85891 42mm EZ Kit Sportster ‘94+ Plain
85892 42mm EZ Kit Buell ‘94+ Plain
33720 42mm Total Kit Shovelhead Kit made by Rivera Plain
33721 42mm Total Kit Iron Head  Kit made by Rivera Plain
   
TEC # Description Mikuni 48mm  
85902 48mm Carb Body Only  Plain
85904 48mm Polished Carburetor Kit   Includes  48mm carburetor,
rubber flange and various jets for tuning.		 Polished
 
TEC # Description Mikuni 45mm  
85894 45mm Carb    Body only Polished
85895 45mm Carb    Body only Plain
85893 45mm Total Kit  Twin Cam 88 Plain
85896 45mm Total Kit  Big Twin ‘84-99 Plain
   

Hi-Flo Carb Back for Mikuni

Adapts Mikuni Carb to S&S Manifolds. Precision machined bore, tapers from Mikuni outlet diameter to S&S manifold inlet size.

Includes O-Rings & metric hardware.

TEC # Description
29310 Adapts Mikuni 42mm Carb to S&S Super ‘B’ & ‘E’
29311 Adapts Mikuni 45mm Carb to S&S Super ‘B’ & ‘E’
29312 Adapts Mikuni 45mm Carb to S&S Super ‘G’
29313 Adapts Mikuni 48mm Carb to S&S Super ‘G’
 

Billet Aluminum Carb Adaptors

 
TEC # Description
29315 Adapts HRS-42 & OEM CV Carb To 2-Bolt OEM Manifold
29316 Adapts HRS-42 & OEM CV Carb To S&S Super ‘E’ Manifold
 

1" Thick Manifold Spacer for S & S E Billet Aluminum

TEC # Description
29319 For S&S Super ‘B’ & ‘E’ Carbs, O-Ringed grooved
 
TEC # Easy Tool Kit for Mikuni 42/45/48

85914 Mikuni Easy Tool Kit

Includes, Easy 17mm x 11/16 open end wrench, Mini T Jet Wrench, 2.5mm ball end allen bit, & Flathead/Phillips hex bit
 
TEC # Chrome Brackets for Mikuni 42/45/48
86105 Mikuni Chrome Brackets fits Evo Motors
 
TEC # Adaptors for Mikuni  
86106 Mikuni Adapts Carb to backing plate Chrome
86086 Mikuni Adapts Carb to backing plate Plain
85908 Mikuni Adapts Carb to S & S Chrome
33444 Doherty Clamp on style Adapts Mikuni carb to S & S E&G, CV Billet
86087 Screw for adaptor plate (uses 3) 42/45/48

86088 O’ring for adaptor plate 42/45/48
 
TEC # Air Cleaner Covers for Mikuni
86081 Chrome Fits Mikuni 42/45/48 Cut Out
86082 Chrome Fits Mikuni 42/45/48 Full Round
99990 Black Fits Mikuni 42/45/48 Full Round
85907 Chrome Fits Mikuni 40mm only
 
TEC # Mikuni Hi Flow Manifolds & Hi Flow Flanges      
86027 Hi-Flo Manifold   Evo 42/45
86028 Hi-Flo Manifold  (w/ MAP sensor) Twin Cam 42/45
86029 Rubber Flange     Evo & Twin Cam
Hi-Flo 42mm
86030 Rubber Flange   Hi-Flo 45mm Evo & Twin Cam
 
TEC # Mikuni Rubber Flanges
85983   Standard 40mm 40mm only
86084   Standard 42mm Evo & Twin Cam
86085  Standard 45mm Evo & Twin Cam
85903   48mm to S&S "G" Manifold Evo & Twin Cam
85998   Screamin Eagle Carburetor 27020-85
 

Jet Needles for Mikuni

TEC #   Mikuni #
86075 42mm Needle Richest 95 J8-88DDYO1-95
86076 42mm Needle 1 Rich 96 J8-88DDYO1-96
86077 42mm Needle Stock 97 J8-88DDYO1-97
86078 42mm Needle 1 Lean 98 J8-88DDYO1-98
 
86015 45/48mm Needle Richest 95 J8-8CFYO2-95
86016 45/48mm Needle 1 Rich 96 J8-8CFYO2-96
86017 45/48mm Needle Stock 97 J8-8CFYO2-97
86018 45/48mm Needle 1 Lean 98 J8-8CFYO2-98
 

Accelerator Pump Nozzles for Mikuni

TEC #   Mikuni #
86012 A/P Nozzle Spray Tube Standard TM42/11-70
86011 A/P Nozzle Spray Tube Medium TM42/11-60
86010 A/P Nozzle Spray Tube Small TM42/11-50
 

Needle & Seat Valve Assemblies for Mikuni

TEC #   Mikuni #
86080 HSR42/45  Standard 786-27001-4.2
86079 HSR42/45   786-27001-3.5
85989 HSR42/45  786-27001-2.3
85912 HSR48  Standard 786-27002-1A-4.5
85913 HSR48  O' Ring Only 616-33003
 

Mikuni Carburetor Rebuild Kits
TEC #   Mikuni #
85919 HSR42/45  KHS-016
85995 HS 40   KHS-001
 
  Mikuni Carb Parts Mikuni #   TEC #

Main Jet Size

   TEC #

Pilot Jet Size

86013 (Kit)

 Screw, Top Cover          C5=0414-B    Screw, Top Cover (2)    CW2=0416-B 86042 105 85930 15
86044 110 85931 17
86014 Top Cover 111-776-001 86046 115 85932 20
86071 Gasket, Top Cover TM42/04 86048 120 85933 22.5
85980(Kit) E-Ring, Jet Needle BS32/126 86050 125 85934 25

Washer, Needle Clip

 826-03002 86052 130 85935 27.5
86015 Jet Needle (HSR45/48) J8-8CFY02 86053 132.5 86058 30
  Lever, T.V. TM42/03 86054 135 86059 32.5
86001 E-Ring B40I/56 86055 137.5 86060 35
86002 Packing, Link Lever B40I/10 86056 140 86061 37.5
86000

Pin, Link Lever

 834-23041 86057 142.5 86062 40
 

Throttle Valve

 TM42/08-1A 85936 145 86063 42.5
  Screw, Needle Retainer 739-13002 85937 147.5 86064 45
  Clip, Needle Retainer TM42/16 85938 150 86065 47.5
  Sealing Ring, T.V. TM48/04 85939 152.5 86066 50
86073 Seal, Throttle Valve TM42/10 85940 155 86067 52.5
86021 Pulley, Cable Bracket 925-98006 85941 157.5 86068 55
86022 E-Ring, Cable Bracket 53974 85942 160 86069 57.5
85986 Bracket Assy., Cable TM42/51 85943 162.5    
  Bolt B3=0520-B 85944 165    
  Spacer VM28/204 85945 167.5    
  Plate, Lock Tab TM42/38 85946 170    
  Screw C2=0514-B 85947 172.5    
85992 Guide Holder (Starter)  640-12001 85948 175    
86096 Spring, Starter Plunger VM14/241 85949 177.5    
86093 Starter Plunger N189.192 85950 180    
86072 Seal, Spigot Body 616-94029 85951 182.5    
85982 Lever, Accel. Pump TM42/43 85952 185    
85990 Pin, Throttle Lever N138.019 85953 187.5    
86003 Lever, Throttle TM42/48 85954 190    
85960 Spring, Accel. Pump M12F/46-BB 85955 192.5    
86037 Screw, Accel. Adjust MC-0316-B 85956 195    
86024 Spring, Accel. Pump TM42/47 85957 200    
  Packing, Shaft (Plastic) B36/95 85958 202.5    
  Adjusting Screw, A/P TM42/36 85959 205    
  O-Ring, A/P Screw B30/205      
  Bolt TM40/89
85922 Pin, A/P Lever BN38/43
86025 Lever, Return Spring TM42/46
  Screw, Throttle Stop N140.409
  Nut, Throttle Stop N3=04
86023 Spring, Throttle Return TM42/19
  Shaft, Throttle 700-15012-1A
86039 Plate, Fuel Joint Retainer TM42/15
86038 Screw, Fuel Joint Retainer C2=0410-B
85929 (Kit) Screw, Pilot Air Adjusting 604-26014
Spring, Pilot Air Screw N133.206
Washer, Pilot Air Screw VM12/205
O-Ring, Pilot Air Screw N133.037
     
  Fuel Joint TM40/27
85981 O-ring, Fuel Joint (2) KV/10
86100 (Kit)

Packing, Idle Adjuster

 B30/398
Washer, Idle Adjuster (steel) VM22/138
Spring, Idle Adjuster 730-09018

Ring, Idle Adjuster (Brass)

 925-15001
86099

Idle Adjuster Ass'y (Long)

 TM42/32
86098 Idle Adjuster Screw (Short) 990-605-065
85966 Needle Jet (723 Series) 784-430000-Y-6
86010 Nozzle, Accelerator Pump TM42/11
  O-Ring, A/P Nozzle N124.063
85970 Extender, Main Jet TM42/12-1A
  O-Ring, N.V 616-33003
85974 Screw w/Washer, N.V. Retainer VM13/216
86074 Float Ass'y 859-32027
  Pin, Float BV26/22
86038 Screw, Float Pin C2=0410
86070 Packing, Float Bowl 616-94028
86008 Float Chamber Body TM42/05
85996 Hose, Overflow N122.028
85979 O-Ring, Drain Plug VM28/254
86009 Drain Plug TM32/41-1D
85978 Screw, Float Bowl (4) C2=0412-B
86040

Rod, A/P

 TM36/44-1B
86041

Boot, A/P Rod

 TM36/64
86020 Plunger, A/P TM36/60
86019 Spring, A/P VM14SC13/89

 

 HSR 42/45 Rebuild Kits include:
86071 Gasket, Top Cover TM42/04
85980(Kit) E-Ring, Jet Needle BS32/126
Washer, Needle Clip 826-03002
85929 O-Ring, Pilot Air Screw N133.037
85981 O-ring, Fuel Joint (2) KV/10
  O-Ring, A/P Nozzle N124.063
  O-Ring, N.V 616-33003
85974 Screw w/Washer, N.V. Retainer VM13/216
85996 Hose, Overflow N122.028
85979 O-Ring, Drain Plug VM28/254
85978 Screw, Float Bowl (4) C2=0412-B
86041 Boot, A/P Rod TM36/64