Suzuki GS500E - GS500 K5;UK5;FK5;FUK5 (05-Model) Service Data - Valve + Guide

21-4 GS500K5/UK5/FK5/FUK5 (’05-MODEL)
SERVICE DATA
VALVE + GUIDE
Unit: mm (in)
ITEM STANDARD LIMIT
Valve diam.
IN.
39
(1.5)
—
EX.
32
(1.3)
—
Valve lift
IN.
8.5
(0.33)
—
EX.
8.0
(0.31)
—
Tappet clearance (when cold)
IN. & EX.
0.03 – 0.08
(0.001 – 0.003)
—
Valve guide to valve stem
clearance
IN.
0.025 – 0.055
(0.0010 – 0.0022)
—
EX.
0.040 – 0.070
(0.0016 – 0.0028)
—
Valve stem deflection
IN. & EX. —
0.35
(0.014)
Valve guide I.D.
IN. & EX.
7.000 – 7.015
(0.2756 – 0.2762)
—
Valve stem O.D.
IN.
6.960 – 6.975
(0.2740 – 0.2746)
—
EX.
6.945 – 6.960
(0.2734 – 0.2740)
—
Valve stem runout
IN. & EX. —
0.05
(0.002)
Valve head thickness
IN. & EX. —
0.5
(0.02)
Valve seat width
IN. & EX.
1.0 – 1.2
(0.04 – 0.05)
—
Valve head radial runout
IN. & EX. —
0.03
(0.001)
Valve spring free length
(IN. & EX.)
INNER —
35.6
(1.40)
OUTER —
40.6
(1.60)
Valve spring tension
(IN. & EX.) INNER
107 – 123 N
(10.9 – 12.5 kgf, 24.0 – 27.6 lbs)
at length 31.0 mm (1.22 in)
—
OUTER
199 – 228 N
(20.3 – 23.3 kgf, 44.8 – 51.4 lbs)
at length 35.0 mm (1.38 in)
—