Suzuki GSXR-1100 1990 - Compression Check

3,1 ENGINE
COMPRESSION CHECK
Th e compression of ;:i cylinder is a good indi c ator
of its i n1 er nal condition . The d1.1 cision 10 ovorh.'.\t•I
1h e cy lin dEHS is of1en based on th e rnsults of a
co mpre ss ion t es t. Periodic matnlEHmt1ce r ucords
k.O PI a, yC>~ ll de .at c,sh ip should in<,:luc1P. <: Olnf)rP.~·
sion r ead ing s for each main te rwn ca :..t11vi cu .
COMPRESSION
Standard Limit Difference
12 00 - 1400 kPa
IO00 kPa 200 kPo
( 1 2 - 14 k~ /c en)
,1 70 - 199 psi
(10 kgicm)
14 2 psi
(2 kgicm ll )
28 psi
Low compressio,l pres s ur e ca n indica1e any of
the following conditions :
* Excess iv ely worn cy li nder wall
* Worn -d own pi s ton or pi ston ring s
* f•isto,, fing s s tu c k in gr o ov e:..
* Poor se.Jtint~ ol ,; J l\ •es
• Ruptur ed (Ir o th e rw ise rl efec ti ve cylinct P. r he;id
gask et
Ovorhuul tho engine in tho following casos:
• Co mpre ssion press~•re in one of th e cy li nders
is lass than 1 000 kPa (10 kg / c m>, 14 2. p1oit.
• Diff ere nce in compress i on f)ressure be tween
any two cvl inders is more th;m 2.00 kP.:, (2
k g/cm
7
,
28 psi).
* All cornpress io11 p • <.: SS u1 c. 1 An; h !;! l r>w I 200 kP ..1
( 12 kg / cm li' , 170 ps i) (stc mU.itdl u vt1 11 wh cu lh <: y
111 1} 0$ \u·e nlore thM'I 10 00 kPa (10 k g/cm' . 14 2
psi).
COMPRESS I ON TEST PROCEDURE
NO TE :
* Before re st ln{J th e v, r9,ire fo r c ompr es .,;ion
p,·esswe , mnk" s urP. th at th e cyli nder heiJd 1mt s
and bolt are tiyht &m.:d to th e s pec;t ied torque
vt iloe s t md valves nre properly adJusted.
* Warm up th e tm{Jino be(O r'C testing ,
• Re mov e th e SOO l, faidngs. an d fuel ti.Ink.
• Remove
all th ~ spa rk plugs.
•
Fit th e compr ess ion gau90 0 in o ne of the pl ug
holes , wh ite u1king care that the co nn a ctioo Is
tight.
• Twist the thrott le g rip full -open.
•
Crank the angina a few SBconcts with the starter ,
ond r<i cord the m ax imum 91mge read in g as the
compress ion of that cvl i nd Etr .
• RopC;)at 1hls 1 >rocedure with the ot her cylinders.
09915 • 645 10: Compre-ssion gougo
09915-63210 ; Ad•p to,