Yamaha MX360 - Engine Speed Adjustment

4-5
SPEC
MAINTENANCE SPECIFICATIONS
Model name:
MX360
Model code number:
7HCJ
Valve: mm (in)
Head diameter “A” IN
31.9–32.1 (1.2559–1.2638)
EX
27.9–28.1 (1.0984–1.1063)
Stem diameter “B” IN
5.948–5.963 (0.2342–0.2348)
EX
5.940–5.955 (0.2339–0.2344)
<Limit> IN
5.918 (0.2330)
EX
5.910 (0.2327)
Stem length “C” IN
88.1 (3.4685)
EX
88.1 (3.4685)
Valve face contact width “D”
IN
0.7–0.9 (0.0276–0.0354)
EX
0.7–0.9 (0.0276–0.0354)
<Limit> IN
1.6 (0.063)
EX
1.6 (0.063)
Valve seat contact width IN
0.7–0.9 (0.0276–0.0354)
EX
0.7–0.9 (0.0276–0.0354)
<Limit> IN
1.6 (0.063)
EX
1.6 (0.063)
Valve seat width IN
0.7–0.9 (0.0276–0.0354)
EX
0.7–0.9 (0.0276–0.0354)
Valve margin thickness IN
***
EX
***
Valve stem runout limit
***
“θ”
***
Valve guide
Guide inside diameter IN
6.000–6.012 (0.2362–0.2367)
EX
6.000–6.012 (0.2362–0.2367)
Stem to guide clearance IN
0.037–0.064 (0.0015–0.0025)
EX
0.045–0.072 (0.0018–0.0028)
Valve clearance (cold) IN
0.05–0.09 (0.0020–0.0035)
EX
0.05–0.09 (0.0020–0.0035)
Push rod: mm (in)
Runout limit
0.15 (0.0059)
7HC-F8197-11.indb 5 2015/09/01 14:08:22