2013 MOTORCYCLE VALVE CLEARENCE

MOTORCYCLE VALVE CLEARENCE

Hmmm ... after they finish discussing the position of the valve, the discussion this time I tried to discuss the estrangement standard valves for motorcycles .. come on lets see Compression pressure in the combustion chamber is strongly influenced by valve gap adjustment . If the gap is smaller than a standard valve means rapid valve opening and longer closing , opening morelonger make gas more entry . As a result, more extravagant gasoline and as a result of the delay in closing the valve is pressure compression become leaky due at the time of the compression stroke ( when the piston moving from the bottom up ) , the valve is not closing when it should at that time the valve should shut this resulted in power reduced engine . Machines can not stationary , and difficult to turn on, in addition to The result is too narrow slit valve explosion can occur at carburetor .Furthermore, if the gap is greater than the standard valve means late valve opening and fast closing . If this happens to entering the intake valve fuel-air mixture is rapid so that the amount of mix in a bit.Compression pressure to be low because of the blend of gasoline and little compressed air . If the compression pressure is low then will result in the motor power is reduced. The next result is a difficult machine is turned on . After the live sound engines noisy at all . Because revenues less gas , the engine will tersendatsendat at high speed . While the machine can not spin stationary . That is why the valve gap should be set appropriately. Usually big rift entrance slit valves and valve waste about 0.04 to 0.07 mm .

 

Figure 1 Cracks valve that is too small
and the gap is too large valve

Setting slit valve single-cylinder motorcycles1 . Ignition is OFF . Compression piston at top position . for ensure that the position of the piston at the top of compression , note that at this time the T mark on the rotor magnets right to mark a line on the motorcycle body , slit platinum second valve opens and closes .2 . If the position of the piston is not exactly at the top position rotary compression crank shaft with a key . In order for the light turning plugs off of the stand .3 . Set the valve gap with feeler in accordance with the provisions. To set the valve gap , loosen the nut and insert feeler thickness specifications. after that turn the adjusting bolt and locking nut harden so feeler that it can only be withdrawn with little prisoners ( rather heavy ) . After the lock nut hardened, enter the same foler as checking whether the tuning is correct .4 . After the second set of valves , replace parts removed and turn the motor to control . If it turns outslit valve is too loose it will arise from the noise toward the cylinder head . If the valve is too narrow slit usually turned on the motor is rather difficult.  

Setting slit valve two -cylinder motorcycle1 . Ignition is OFF . The first cylinder piston position at top compression . To ensure that the position of the piston cylinder The first on top of compression , note that at this time T mark on the rotor magnets in line with the dash the motor body , platinum slit open and the second valve The first cylinder shut .2 . If the position is not on the top compression piston , rotary shaft crank the key . In order to play it light , especially off first spark of the holder .3 . Set both the cylinder valve first as a way to set valve on one cylinder motorcycle . The cylinder valve can only be set after the crankshaft rotated one full rotation of the position .Note1 . If the adjusting bolt to the right rotated clockwise the valve becomes narrow slit . If the adjusting screw is rotated to the left , opposite to the direction of turn neddle hour , slit valve becomes loose .2 . At the time of the adjusting bolt lock nut braze should detained valve openings must not be changed .3 . Feeler worn once or bent should not used to set the valve gap .4 . Do not harden locking nut too hard because it will difficult to mengendorkannya back .5 . To facilitate adjustment valve , loose parts disturbing , such as the gas tank to the type of motorcycle particular .