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SPEC
MAINTENANCE SPECIFICATIONS
Head Dia. Face Width Seat Width Margin Thickness
Model Standard Limit
Cam chain:
Cam chain type/No. of links
Cam chain adjustment method
79RH2015/156
Automatic
SSS
SSS
Valve, valve seat, valve guide:
Valve clearance (cold) IN
EX
Valve dimensions:
0.11 X 0.15 mm
0.16 X 0.20 mm
SSS
SSS
“A” head diameter IN
EX
“B” face width IN
EX
“C” seat width IN
EX
“D” margin thickness IN
EX
Stem outside diameter IN
EX
Guide inside diameter IN
EX
Stem-to-guide clearance IN
EX
Stem runout limit
28.9 X 29.1 mm
24.9 X 25.1 mm
1.98 X 2.55 mm
1.98 X 2.55 mm
0.9 X 1.1 mm
0.9 X 1.1 mm
0.8 X 1.2 mm
0.8 X 1.2 mm
5.475 X 5.490 mm
5.460 X 5.475 mm
5.500 X 5.512 mm
5.500 X 5.512 mm
0.010 X 0.037 mm
0.025 X 0.052 mm
SSS
SSS
SSS
SSS
SSS
SSS
SSS
SSS
SSS
5.445 mm
5.43 mm
5.552 mm
5.552 mm
0.08 mm
0.1 mm
0.01 mm
Valve seat width IN
EX
0.9 X 1.1 mm
0.9 X 1.1 mm
1.6 mm
1.6 mm