Typical JDJetting Kit with Custom Machined Needles |
Carburetor Throttle Circuit Range Effects |
Carburetor Tuning Range Chart |
Keihin Needle Chart with Small Needle Tip Notation |
Suzuki DRZ400S BSR Carburetor |
FCR-MX Carburetor Parts |
Eploded View 1 |
Eploded View 2 |
Carburetor Clamps and Fittings |
FCR1 Single Carburetor Parts |
Accelerator Pump Diaphragm Spacer in Jet Kit JDK015, JDK013, and JDK002 |
Needle Clip Positions for FCR carburetor needles |
FCR-MX Float Level Setting |
Float Level PWK Short Body |
PWK Air Striker Float Level Setting- Yamaha & KTM, 2 screw cap |
Air Striker Float Level Setting- Screw Cap Version |
FCR1 Float Level Setting |
Vacuum Plate Seal Orientation |
Vacuum Plate Seal Orientation 4 |
Vacuum Plate Seal Orientation 2 |
Vacuum Plate Seal Orientation 5 |
1990 Keihin PWK Float Height and FUEL Level |
FUEL Level |
TPS Resistance Check #1 |
TPS Resistance Check #2 |
2011 YZ450F TPS Setting |
Jets and Needle Clip Positions |
Pilot screw (Fuel Screw) |
Accelerator Pump |
Accelerator Pump Linkages 1 |
Accelerator Pump Linkages 2 |
Carburetor Bottom with Pilot Screw, Spring, Washer, and O-ring |
Carburetor Slide and Plate (Square End is Down on Plate) |
Carburetor Cables, Hoses, and Clamps |
Setting the Pump Timing Start point |
FCR Single Taper Needles |
PWK/PJ Single Taper Needles |
Keihin PWK PJ Single Taper Needles |
FCR Needles list.gif |
Yamaha YZ426 Needle Info.jpg |
Power Bowl with Adjustable Pump |
FCR Carb disassembly for clearing pump nozzle |
FCR Carb disassembly for clearing pump nozzle |
FCR Carb disassembly for clearing pump nozzle |
FCR Carb disassembly for clearing pump nozzle |
FCR Carb disassembled |
Two small passages flow fuel from the pilot jet, however, only the lower opening is metered by the fuel screw |
IMG_3275.JPG |
IMG_3267.JPG |
IMG_3270.JPG |
IMG_3278.JPG |
Accel Pump Nozzle and Pilot Jet Passages.jpg |
Keihin FCR Gaskets at Middle of Carburetor.jpg |
FCR Mid-Body Gasket Set #JDKH17 |
Gaskets at Middle of Carburetor - JDJetting part JDKH33 |
Mid Body Gasket with Bubble Shape Included- JDKH33 |
Standard Nozzle with Single Passage |
Dual Spray nozzle #JDKH27 |
FCR Carb Disassembly for Pump Nozzle Access and Dual Spray Installation |
Dual Spray Nozzle Installed, #JDKH27 |
Standard Accelerator Pump Nozzle Compared to Dual Spray Nozzle from #JDKH27 |
Standard Accelerator Pump Nozzle |
Dual Spray Accelerator Pump Nozzle from #JDKH27 |
Mid Body All Gaskets FCR-MX, Upper gaskets are in #JDKH17, JDKH33, and Dual Spray Nozzle #JDKH27 |
Mid Body Gasket JDKH17 Cut to Fit FCR Carb with Removeable Flange |
JDKH17 vs JDKH33 -Use JDKH17 to Cut and Fit |
JDKH17 vs JDKH33 -Use JDKH17 to Cut and Fit |
3M Scotch Weld 847 KTM Recommended Product to Seal the Mid-Body Gasket |
3M_Adhesive_847 |
Keihin FCR Mid-Body Gasket Set #JDKH17 |
FCR Mid-Body Gasket Set #JDKH17 (1 of the 2 large gaskets included is shown) |
FCR Mid-Body Gasket Set #JDKH17 (1 of the 2 large gaskets included is shown) |
Gasket and Rebuild Kit #JDKH20 |
Slide Plate #JDKH22 and Seal #JDKH19 |
FCR Mid-Body Gasket Set #JDKH17 |
Dual Spray Accelerator Pump Kit #JDKH27 |
NOTE- THESE ARE PICTURED UPSIDE-DOWN: Pump Diaphrams- Standard #JDKH18 (on left), and Honda Diaphragm #JDKH04 (on right) |
Quickshot 3 Adjustable Pump Cover- Part #JDAP05 |
Replacement Float Needle and Seat for FCR-MX Select Models 2000-2005 |
The Float Needle Seat is Removable and Can Be Replaced with This Version FCR-MX |
Quickshot 3 Adjustable Pump Cover- Part #JDAP05 |
FCR Carb disassembly for clearing pump nozzle |
Cleaning Pump Nozzle- Location to Spray Carb Cleaner |
KTM Slide with Notch and JDJetting Modified Replacement Slide |
KTM Slide with Notch and JDJetting Modified Replacement Slide |
KTM Slide with Notch and JDJetting Modified Replacement Slide |
KTM Slide with Notch and JDJetting Modified Replacement Slide |
KTM Slide with Notch |
JDJetting Modified Replacement Slide for KTM |
KTM Slide with Notch and JDJetting Modified Replacement Slide |
JDJetting Modified Replacement Slide for KTM |
Adjustable Pump Cover No Longer Available |
CO Content vs AirFuel Mixture |
Needle_change_of_fuel_with_clip |
Needle_percent_change_of_fuel_with_clip |
Needle_change_of_fuel_with_clip_NOZI |
Needle_percent_change_of_fuel_with_clip_NOZI |
Needle_change_of_fuel_with_clip_N8RH |
N8RH VS N3EH 2 and 3 |
Needle_percent_change_of_fuel_with_clip_N8RH |
Keihin Needle Designs N3CA to N3CM |
Needle NOZH vs DDJ DEL CEL CCK |
Needle NOZH vs DDJ DEL CEL CCK |
Keihin PWK Needles NOZE NOZF NOZG NOZH |
Needle_and_pilot_jet_Change |
Needle_and_pilot_jet_Change Percent |
NAFG_vs_N8RG vs Single Taper R1471E |
NAFG_vs_N8RG vs Single Taper R1471E |
NAFG_vs_N8RG vs Single Taper R1371E |
NAFG_vs_N8RG vs Single Taper R1371E |
Textbook Richening with needle clip vs taper and main jet |
PWK 38mm vs 36mm Engine Side |
PWK 38mm vs 36mm Air Filter Side |
Jetting Guide Examples of Double and Triple Taper Needles Profiles |
Jetting Guide Examples of Double and Triple Taper Needles |
N3CW and Richer Needles by Half Clip |
N3CW and Richer Needles by Half Clip Percent Change in Fuel |
Keihin PWK Carb KTM |
Keihin PWK Carb KTM 2003 and Older |
PWK Covers 36 38mm Marking |
PWK 38 Cover Mark |
PWK Covers 36 and 38mm Difference |
Slide PWK 7 Marking.jpg |