Suzuki GSXR-1100 1990 - Page 58

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3-25 ENGINE
CYLINDER HEAD DISTORTION
Oacilrbooize tha combust ion ch ambers .
Check che oaske,ed surface of the cyli,, der hetld fo r di s tor tion
with a s trai g htedge and thi ckm~ss gauge. taking a clearan ce
rea <f io 9 at SCVl)(3 1 ~la ce s i ndic au.:d. If IIW IO(fJ CS l ((l;)(hll!J a t 3 ny
position of the st raig ht edgP. exceedr. the limit, replA ce the
cylindo1 hood.
09900 - 20803 : Thickn(l:$ $ ga:uge
Sorvico Limit: 0.2 mm (0.008 i n)
VALVE STEM RUNOUT
Support the valv e w i th "V" b lo ck~, as shown. and c he ck its
runout with a diol gouge .
The valve most he repl ace d if the runou t excee ds the lirnit.
Service Limit: 0.05 mm iD.002 in]
VALVE HEAD RADIAL RUNOUT
Place the <lial gauge ;:n ri gh t Mg l es to th e valve he MI face. and
mo;;isuro tho va lv a heutf n'.ltlial runout
If it mea ~ .ur es mor e tha n th e li mit. rep l ace the va lv e.
Service lim it: 0.03 mm (0.001 in)
VALVE FACE WEAR
V is ually inspect each valve for wear of it s seat in g face . Re place
(ll'Y va lv e wi1h ao abnorma lly w o,n r -,cc: .
Tha thickn ess (D d ecrea s es as the wear of the face advances.
Mea sure the thi ck .ness aod , ir the thick:oess is fo~ •n d to have
b ee n reduced to th e limit, rep la ce it .
Servico l.hnh C): 0.6 mm (0. 02 int
VALVE GUIDE-VALVE STEM CLEARANCE
M ea!l ur e the cl e,:1 r ;,i, nc e In two cfoection s, ., X ,, and " Y"', perpen •
d
,cu l;;ir to oa ch O lh Ur, by µ o:.itio ning th u di al g.iuga .i:. show 11 .
If the cl earnnce mea surP.d P.x cee ct s the limit , ( see belowt then
deto rmioe wh o lh c r tll l: valve or tha g uid ~ sho uld IJa r 4.1 p laca d
to reduce th e clea r ance to the stAndi:ird ,ange :
Sorvico l.. hni l
Intak e valves : 0.35 mm (0 . 014 in)
Exhau ~t valves : 0.35 mm (0 . 014 in)
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