Suzuki GSXR-1100 1990 Service Manual page 62

•
3·29 ENGINE
VALVE STEM ENO CONDITION
CAUTION ,
• Refacing the valve stem end face is permissible where
lhe
length
:'1; will not b<i reduced 10
loss
than 2.5 mm,
I f this. le ngth becomes shorter than 2.5 mm, then the
v alve must be replaced.
• After installing the valve whose s tem end has been
9ro,.md off as (tbovo. cho-ck 1hat tho face
~f:
of valve stem
end is a bove the valve cotter
,3i.
VALVE SPRINGS
The force of the two c oil springs keeps the valve seat tight
We<1kuned springs rusult ,n rcducod
cmo1r,c
power
011tp111,
F,in<I
often acco~•nt for the chauering noise coming h a m t he valve
mechanism.
ChE!Ck. the valve springs for proper ,trength by measuring th air
free le ng ths and also by the force required to compross them,
If the s1 >,in9 leni:ith is less than 1he servic:P. limit. o r if t he force
raqu,,ed to compre~s thu sp,mo docs uot fall wilhin the rt'lnge
sriecified, replace both thr. inne r and outer springs as u suL
CAUTION:
Roplaeo both the valve springs. Inner and outf)r, at a time,
if a ny one of these is found to be beyond tho limll.
Valve spring free length
. . . INNER ,
35.0 mm (1 .38 Int
Service Limit OUTER: 37 .8 mm (1.49
in•
Valve spring tension
INNER : 5,3 - 6,5 k\)/ 28
lllr'll
Standard n1.7 - 14.3 lbs/1.10 in)
OUTER 13.1 - 16.1 k 9/31.S
mm
i28.9 - 33.3 lbs/1 .24 in)