作者: Everlax (Ever Motard) 看板: OffRoad
標題: 【文件】XR600R 氣門間隙調整.
時間: 東吳機研站 Sat Apr 19 00:03:17 2003
from:http://www.4strokes.com
Ensure the motor is cold.
Remove the fuel tank, fuel line, seat and side covers.
Remove the four large valve inspection bolts
with a socket the same size as the rear axle nut.
Remove the spark plug, place a screwdriver through
the hole and rest it on the top of the piston.
Remove the timing inspection bolt on the LHS engine case.
You want to adjust the valve clearance on the compression stroke,
that is when the intake valve has opened and air has been sucked in,
then the piston rises up compressing the air. Rotate the motor with
the kick starter so that the exhaust valve has just open,
and then shut and the intake valve is just about to open.
You will feel with the screw driver that the piston is at TDC and the
?mark will show through the LHS inspection hole.
This is not the correct TDC. Rotate the motor a little further
and you will notice the intake valve open up. Keep rotating slowly
and you will feel the piston rise again to another TDC. This is the
correct TDC to adjust the valve clearance from. If you look through
the LHS inspection hole now, you should see the letter ? but it
might not be perfectly lined up the groove in the case cause the
kick-starter spring won let it sit perfectly.
I used a length of string to hold the kick-starter at the perfect
angle to line up the two marks. There should be play in all the valve
arms at this point. There are several marks, so be sure you have the ?
mark.. The key things to remember are the T mark must be lined up,
and there should be some play in all 4 of the rocker arms.
With your feeler gauge, (intake is .010mm and exhaust is .012mm),
use a smaller feeler gauge finger (ie .005mm) just to see
how the clearances are at the moment on the intake valve.
If you can get it in between the bottom of the adjusting
screw and the sub rocker arm, the clearances are to tight and
need adjusting. If the .005mm fits in and is quite loose,
try the 0.010mm. If you can get it in without struggling
and there is just a light grab on the finger it is perfect so don
adjust it. If it to tight or loose, adjust it. Check the exhaust
clearance using the relevant gauge fingers.
ADJUSTING THE VALVE CLEARANCE: using a 12mm ring spanner,
loosen the locking nut. Using a flat head screwdriver, screw
the adjustment screw out just enough for you to slide in the
correct gauge finger. Screw the adjustment screw back in so it
is just applying a small amount of pressure to the gauge finger.
You should be able to still slide the gauge finger around,
but it should feel like it is grabbing a little.
Screw the locking nut down to secure the adjustment screw.
When the locking nut is tightened, it appears to raise the
adjustment screw slightly and reduce the amount of grabbing
on the gauge finger,
so experiment and get it all tight but with the slight grab.
Continue this for the remaining three valve clearances.
Adjust the decompression system if required so it is not
affecting the rocker arm action and only touches the rocker
arm when you pull the decompression lever. The decompression
system cable mount on the cylinder head may cop a few hits and
could be bent, so check this, as it will affect the way the decompression
system works. Then recheck the clearances for peace of mind
Replace the four large valve inspection bolts and the timing
inspection bolt on the LHS.
Replace the tank, fuel line, side covers and the seat.
Fire her up.
--
T.C 澐密美人 (Touring Club) On-Road and Off-Road, Dual Purpose
OFF-ROAD配備: Honda XR600R
FOX forma2000, DAiNESE S.J, J-Force SV, KOMINE GK-389, NANKAI SDW-418
As I sit here alone, all my thoughts turn to you...
And my heart begins to race, at the thought of a rendezvous.
--
※From: 東吳機研 scumotor.com.tw Everlax From sw73-54-197.adsl.seed.ne� ...
一個玩車人的天地/各車系專屬區/GP SBK TIS賽事討論區/進口車討論區/