Yamaha 200A Service Manual download pdf (Page 20)

SPEC

Specifications

60L3D1X

Oil ring

Dimension B mm (in) 2.40–2.47 (0.0945–0.0972)

Dimension T mm (in) 2.3–2.7 (0.091–0.106)

End gap mm (in) 0.15–0.60 (0.0059–0.0236)

Side clearance mm (in) 0.04–0.13 (0.0016–0.0051)

Camshafts

Intake (A) mm (in) 45.30–45.40 (1.7835–1.7874)

Exhaust (A) mm (in) 45.35–45.45 (1.7854–1.7894)

Intake and

exhaust (B)

mm (in) 35.95–36.05 (1.4154–1.4193)

Camshaft journal diameter mm (in) 24.96–24.98 (0.9827–0.9834)

Camshaft journal oil clearance mm (in) 0.02–0.06 (0.0008–0.0023)

Camshaft runout limit mm (in) 0.1 (0.004)

Valves

Valve clearance (cold)

Intake mm (in) 0.20

0.03 (0.008

0.001)

Exhaust mm (in) 0.34

0.03 (0.013

0.001)

Head diameter (A)

Intake mm (in) 34.85–35.15 (1.3720–1.3839)

Exhaust mm (in) 29.85–30.15 (1.1752–1.1870)

Face width (B)

Intake mm (in) 2.11 (0.0831)

Exhaust mm (in) 2.43 (0.0957)

Seat contact width (C)

Intake mm (in) 1.1–1.4 (0.043–0.055)

Exhaust mm (in) 1.4–1.7 (0.055–0.067)

Margin thickness (D)

Intake mm (in) 0.7 (0.028)

Exhaust mm (in) 1.0 (0.039)

Stem diameter

Intake mm (in) 5.477–5.492 (0.2156–0.2162)

Exhaust mm (in) 5.464–5.479 (0.2151–0.2157)

Guide inside diameter

Intake and exhaust mm (in) 5.51–5.52 (0.2169–0.2173)

Stem-to-guide clearance

Intake mm (in) 0.01–0.02 (0.0004–0.0008)

Exhaust mm (in) 0.01–0.02 (0.0004–0.0008)

Stem runout limit mm (in) 0.01 (0.0004)

Valve springs

Free length mm (in) 44.20 (1.740)

Minimum free length mm (in) 42.60 (1.677)

Tilt limit mm (in) 1.5 (0.06)

Item Unit

Model

F200AET FL200AET

1 2 ... 15 16 17 18 19 20 21 22 23 24 25 ... 55 56

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Yamaha 200A Service Manual Page 20

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