YAMAHA PW50 (X) OWNER'S MANUAL

0

Filed Under (Yamaha) by admin on 25-11-2010

download
Before operating the motorcycle: * Check the fuel tank breather hose connection. * Check the fuel tank breather hose for cracks or damage, and replace it if damaged. * Make sure that the fuel tank breather hose is not blocked, and clean it if necessary. EAU13452 2-stroke engine oil Make sure that there is sufficient 2-stroke engine oil in the oil tank. Add the recommended 2-stroke engine oil as necessary. NOTE: Make sure that the 2-stroke engine oil tank cap is properly installed. EAU40701 Fuel cock The fuel cock supplies fuel from the tank to the carburetor while filtering it al- so. The fuel cock has two positions: S (stop) With the lever in this position, fuel will not flow. Always return the lever to this position when the engine is not running. 1. Fuel tank breather hose 1 1. 2-stroke engine oil tank cap 2. Minimum level mark Recommended oil: See page 8-1. Oil quantity: 0.30 L (0.32 US qt) (0.26 Imp.qt) 2 1 1. Arrow mark pointing to “S” (stop) 1
INSTRUMENT AND CONTROL FUNCTIONS 3-6 1 2 3 4 5 6 7 8 9 O (on) With the lever in this position, fuel flows to the carburetor. Normal riding is done with the lever in this position. EAU13590 Starter (choke) lever “” Starting a cold engine requires a richer air-fuel mixture, which is supplied by the starter (choke). Move the lever in direction (a) to turn on the starter (choke). Move the lever in direction (b) to turn off the starter (choke). EAU13680 Kickstarter To start the engine, fold out the kick- starter lever, move it down lightly with your foot until the gears engage, and then push it down smoothly but force- fully

Incoming search terms:

MIKUNI VM CARBURETOR SUPER TUNING

0

Filed Under (Mikuni) by admin on 31-10-2010

download
This manual is intended as a guide for users of Mikuni carburetors who want to learn the adjusting method to the best performance from our products. In motorcycles, special tuning of the engine is now considereda routine practice. The arrows that appear in the drawings in this text show the direction in which air, fuel and an air-fuel mixture flows, respectively. ┬óJAir Fuel “Mixture Mounting angle fore and aft inclination of the carb should not exceed approx Function of a carburetor The function of a carburetor is to produce combustible air-fuel mixture, by breaking fuel into tiny particles (in the form of vapor) and by mixing the fuel with air in a proper ratio, and to deliver the mixture to the engine. A proper ratio (mixture ratio or air-fuel ratio) means an ideal air-fuel mixture that can burn without leaving an excess of fuel or air, Whether the proper mixture ratio is maintained or not holds the key to the efficient engine operation, 2. Air-fuel mixture required by the engine (Fig. 1) The ratio of a mixture of fuel and air is called the mixture ratio or the air-fuel ratio and is generally expressed by the weight proportion. Theoretically, the amount of air required for complete combustion of 1 gram of fuel under normal conditions is

Incoming search terms: