Keihin Cr Special Carburetor Tuning Manual
On FCR carbs the main jet, slow jet, jet needle, air adjustment, slow jet air adjustment and gas valve are different and located elsewhere. Autodata Portugues Gratis there. If you need to adjust above or below this range then the slow jet will probably need to be replaced with one richer or leaner as required, consult your owners manual for the standard.
CRS General: CR Special Racing Carburetors Legendary carburetors for the high performance motorcycle world. CR carburetors are designed to offer a performance increase over stock production carburetors and have proven this by many Super Bike wins. In addition to performance, CRS carburetors are easy to tune because all jetting parts are available. CRS Features • Smooth bore for maximum air flow. • Easy installations with kits available for single, twin, and four cylinder motorcycles. • Easy jetting which can be done at track side.
• Sold with racing velocity stacks but can be used with air cleaners. Etka 7 4 Keygen. • Venturi size available - 26, 29, 31, 33, 35, 37 and 39 mm. Mapsource 6 16 3 Patched Works there. • Warning: CRS should be operated by push-pull cable.
Before changing any jetting parts, check the carburetor floats for correct height. Measure the height from the bottom of the float to the Throttle Opening. Carburetor-body gasket surface. Correct height can be found on the chart. When checking the float height, the float should be resting, but not depressing, the spring-loaded float valve pin.
This can be done by tilting the carburetor until the float tab just makes contact with the valve pin. If adjustment is needed, bend the metal tab on the float arm until correct height is obtained.--see example #1. Set idle speed to proper r.p.m, by adjusting the IDLE SPEED SCREW.
Turn the IDLE MIXTURE SCREW or the AIR SCREW to for correct procedure, achieve highest speed and best response. The IDLE MIXTURE SCREW (FCR) controls fuel delivery to the idle port and the SCREW is located on the engine side of the carburetor slide. Turning the IDLE MIXTURE SCREW out will make idle and off-idle richer. Turning IDLE MIXTURE SCREW (CR, PWK, PJ, PE) controls the amount of air to the IDLE and SLOW CIRCUIT. This SCREW is located on the air cleaner side of the throttle slide and turning the SCREW out will lean the mixture and turning the SCREW in (clockwise) will richen the mixture. The JET NEEDLE is the most effective component in the range. Changing the STRAIGHT DIAMETER (D) will change the calibration in the transition range from the SLOW circuit to the MAIN circuit (1/8 to 1/4) throttle.