Specifications

SPEC
R-19
DESCRIPTION SPECIFICATION
Cylinder head :
<Warp limit> <0.03 mm (0.0012 in)>
* Lines indicate straightedge
measurement.
Camshaft :
Drive method Chain Drive
Cam dimensions
Intake “ A ” 25.356 ~ 25.456 mm
<Limit> <25.326 mm>
“ B “ 20.989 ~ 21.089 mm
<Limit> <20.959 mm>
“ C “ 4.4055 mm
Exhaust “ A “ 21.360 ~ 21.460 mm
<Limit> <21.330 mm>
“ B “ 21.001 ~ 21.101 mm
<Limit> <20.971 mm>
“ C “ 4.4114 mm
Rocker Arm/ Rocker Arm Shaft :
Inside diameter (Rocker Arm) 10.000 ~ 10.015 mm
<Limit> <10.03 mm>
Outside diameter (Rocker Armshaft) 9.981 ~ 9.991 mm
<Limit> <9.95 mm>
Cam chain :
Cam chain type/No. of links BUSH CHAIN / 90
Cam chain adjustment method Automatic
Valve, Valve Seat, Valve Guide :
Valve clearance (cold) IN 0.08 ~ 0.12 mm
EX 0.10 ~ 0.14 mm
Valve dimensions :
Head Dia. Face Width Seat Width Margin Thickness
“A” head diameter IN 22.90 ~ 23.10 mm
EX 19.90 ~ 19.10 mm
“B” face width IN 1.98 mm
EX 2.26 mm
“C” seat width IN 0.9 ~ 1.1 mm
EX 0.9 ~ 1.1 mm
“D” margin thickness IN 0.60 mm
EX 1.00 mm
2-5
MAINTENANCE SPECIFICATIONS
B
B
C
A
B
C
D