A common reason for a motorcycle to run out of energy
1. The clutch slip and replace with the clutch;
2.Cleaning carburetor and air filter element;
3.Valve is too tight, adjust valve clearance to around 0.06mm;
4. the CAM rocker arm friction loss is too large, change the CAM rocker arm.
Motorcycle, driven by gasoline engine, two or three wheels or tricycles by hand to control the front wheel steering, light and flexible, fast, widely used for patrol, passenger and cargo transport, also used as sports equipment. From the big direction, the motorcycle is divided into streetcar, road race motorcycle, cross-country motorcycle, cruise car, station wagon and so on.
Motorcycle running no power maintenance knowledge
Check whether the air filter is clean, mainly to see whether the filter core (generally a piece of sponge) is clean, if covered with dust, can be washed with soap and dry before loading. If this is the case, the car will have a sound stuffy, when the refueling door, the exhaust pipe from a very thick smoke.
Check the cylinder pressure is normal, can put the spark plug screw down, digs the spark plug hole with your thumb, then step on to start the treadle, if you are by revealing how hard again, it is normal, if not after holding the gas jet, is the cylinder or combustion chamber blow-by, see you said check the reed valve, this car is two stroke, closely, can check whether the following cylinder head and cylinder gasket is damaged, whether the cylinder wear and make the piston and cylinder wall has a gap. If four-stroke cars to check whether the exhaust valve leakage, the main check valve clearance, has returned to the piston top dead center (marked on magneto, aligned with tag on a chassis it is ok, if not the spark plug unscrew backwards into the spark plug hole, light on starting lever slowly, when the spark plug is to the top, the piston is at top dead center).
Voice a fullness, if car air filter and clean, then check the exhaust spewing waste gas is strong, can use the palm of your hand in vent feelings, if there is no strength and temperature is very high, it may well be the exhaust pipe is blocked, can remove the unblock or change, also check the cylinder on the vent blockage (common) on the two stroke engine.
If there is a gear position of the car, see if the engine speed is very high and the speed does not come, if so, it is likely to be a clutch slip, should replace the clutch friction disc, if it is a variable speed car (basically a scooter), should check whether the centrifugal disc ball wear, whether the transmission belt wear and slip.
You said that you have changed the carburetor, but you should also check whether the carburetor is adjusted properly, mainly to check whether the air screw is screwed, the correct thing should be to screw the air screw until it dies around 1.5 turns back.
Last check valve clearance cold car should be 0.05-0.07mm, clearance is too small or no clearance valve leakage will occur, clearance is too big noise, valve and rocker arm will be damaged. In addition, if there is carbon accumulation on the valve, the valve will be closed loosely and leak, but this to remove the cylinder head for inspection, if they do not remove, can be checked by professional maintenance personnel.