CARB - CARB SPARES - FITTINGS - FILTERS

 

For Information as to what is fitted/supplied in a carb as standard when purchased new.  Click Here

JETS - Quick guide
Amal main jet - part number 17 (376/100+size) - Fits mark 1 and 2 - Range from 140 to 400
Amal idle / power jet - part number 26 or 46 (124/126+size) - Fits mark 1 and 2 - Range from 20 to 90
Dellorto main jet part number 4576 - Fits SI etc.- push in type - Range from 80 to 135
Dellorto main jet part number 6413 - Fits PHB etc.- thread size 6mm - Range from 50 to 180
Dellorto idle jet part number 1488 - Fits PHBG - thread size 5mm - Range from 30 to 70
Dellorto main/idle jet part number 1486 - Fits PHB/SH etc.- thread size 5mm - Range from 40 to 140
Dellorto idle jet part number 12995 - Fits VHSB etc.- thread size 5mm - Same as 1486 but 4mm longer - 1486 can be used as a substitute - Range from 30 to 120
Dellorto idle jet part number 11600 - Fits PHVA and PHVB Carbs.- thread size 4mm - Range from 30 to 120
Dellorto long idle jet part number 3360 - Fits SH etc.- thread size 5mm - Range from 32 to 55
Dellorto long idle jet part number 8022 - Fits SH etc.- thread size 5mm - Same as 3360 but longer tip - 3360 can be used as a substitute - Range from 32 to 55
Dellorto long idle jet part number 9892 - Fits SI/H etc.- thread size 5mm - Shorter than 11868 to suite the shorter in height H type carb - Range from 48/100 to 55/160
Dellorto long idle jet part number 6935 - Fits SI early etc.- thread size 5mm - Range from 48 to 55 - no air correction hole as in later models
Dellorto long idle jet part number 11868 - Fits SI etc.- thread size 5mm - with air corrector hole - Range from 48/100 to 55/160
KN main jet - Thread size 4mm - Range from 74 to 100
TK main jet - Thread size 6mm - Range from 74 to 100
GURTNER main jet - Thread size 6mm metric fine .75mm pitch - Range from 56 to 120 in increments of 2
MIKUNI main jet 4/042 - Range from 50 to 500. 50 to 200 in increments of 5, 200 to 500 in increments of 10
MIKUNI idle jet for VM, TM, TMX - Range from 10 to 30.In increments of 2.5



GURTNER JET

COMMON DELLORTO JETS

Dellorto Carb Main Jet Type Idle Jet Type
MA 18mm + 19mm 1486 (5mm) 3360
MB 21mm + 23mm 1486 3360
PHBE 30mm - 38mm 6413 (6mm) 1486
PHBG 15mm - 21mm 1486 1488
PHBH 26mm - 30mm 6413 1486
PHBL 20mm - 26mm 6413 1486
PHBN 12mm - 17.5mm 6413 11600
PHF 30mm - 36mm 6413 1486
PHM 38mm - 41mm 6413 1486
PHVA 12mm - 17.5mm 6413 11600
PHVB 18mm - 22mm 6413 11600
SHA1 18 + 20mm 1486  3360
SHA2 22mm 1486  3360
SHA 9mm - 16mm 1486  -
SHB 10mm - 16mm 1486 3360
SHBC 19mm - 20mm 1486 3360
SHBC 19mm + 20mm PK 1486 8022
SI 17 to 21mm 4576 (push in) 6935
SI20 + SI24 DE+G 20mm+24mm 4576 11868
SI24H 4576 9892
VHSA 28mm + 32mm 6413 1486
VHSH 30mm + 32mm 6413 12995 or 1486
VHBT 27mm - 30mm 6413 1486
VHSB 34mm - 39mm 6413 12995 or 1486


MIKUNI TM24 JET KIT
Main jets - 180, 200, 210, 220.
idle jets - 12.5, 17.5.
Atomizer - 454 Q2.

 
MIKUNI TM24 Needle kit -
615 L08, 615 J20 + needle clip



Mikuni Idle Jet

FILTER FITMENT GUIDE

Amal Carb - Mark 2 Main Jet Type Idle Jet Type Air Filter Size
28mm to 34mm 376/100+size 124/026+size 57mm use 54mm
Dellorto Carb Main Jet Type Idle Jet Type Air Filter Size
MA 18mm + 19mm 1486 3360 32mm
MB 21mm + 23mm 1486 3360  
PHBE 30mm - 38mm 6413 (6mm) 1486 (5mm)  
PHBG 15mm - 21mm 1486 1488 32mm
PHBH 26mm - 30mm 6413 1486 42mm for threaded and unthreaded.
PHBL 20mm - 26mm 6413 1486 39mm
PHBN 12mm - 17.5mm 6413 11600 37mm use 35mm
PHF 30mm - 36mm 6413 1486  
PHM 38mm - 41mm 6413 1486  
PHVA 12mm - 17.5mm 6413 11600 37mm use 35mm
PHVB 18mm - 22mm 6413 11600 42mm
SHA1 18 + 20mm LAM Li 1486  3360  
SHA2 22mm  - LAM GP 1486  3360 45mm
SHA 9mm - 16mm 1486  - -
SHB 10mm - 16mm 1486 3360 62mm use 60mm
Not for studded version
SHBC 19mm - 20mm 1486 3360 62mm use 60mm
Not for studded version
SHBC 19mm + 20mm PK 1486 8022 62mm use 60mm
SI 17 to 21mm 4576 6935  
SI20 + SI24 DE+G 20mm+24mm  PX 4576 11868 Carb Box 57.5mm use 54mm
SI24H   T5 4576 9892 Carb Box 57.5mm use 54mm
VHB 28mm - 30mm 6413 1486 40mm use 39mm
VHBT 27mm - 30mm 6413 1486  
VHBZ 22mm 6413 1486 32mm
VHSA 28mm + 32mm Flat slide 6413 1486  
VHSH 30mm - 34mm Flat slide 6413 12995 or 1486 65mm
VHSB 34mm - 39mm Flat slide 6413 12995 or 1486 65mm
Dellorto Spaco Carb Main Jet Type Idle Jet Type Air Filter Size
PHBH 28mm and 30mm 6413 1486 38mm
Mikuni Carb Main Jet Type Idle Jet Type Air Filter Size
VM 20mm 4/042   41mm use 39mm
TM 24 mm 4/042   44mm use 42mm
TM 28 mm 4/042   44mm use 42mm
TMX 35 mm     60mm


 

REPLACING YOUR STANDARD AIR FILTER BOX WITH A CLAMP ON AIR FILTER MAY 
REQUIRE AN INCREASE IN CARBURETTOR MAIN JET BY 10 to 15%