Yamaha 5HN-28199-13 User Manual

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Item

Standard

Limit

Cylinder head:

Warp limit

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0.03 mm 
(0.0012 in)

Cylinder:

Bore size

47.000 ~ 47.005 mm
(1.8504 ~ 1.8506 in)

47.05 mm
(1.8524 in)

Out of round limit

----

0.05 mm
(0.0020 in)

Camshaft:

Drive method

Chain drive (left)

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Cam dimensions

Intake

“A”

25.428 ~ 25.528 mm
(1.0011 ~ 1.0050 in)

25.398 mm
(0.9999 in)

“B”

21.034 ~ 21.134 mm
(0.8281 ~ 0.8320 in)

21.004 mm
(0.8269 in)

Exhaust

“A”

25.286 ~ 25.386 mm
(0.9955 ~ 0.9994 in)

25.256 mm
(0.9943 in)

“B”

21.047 ~ 21.147 mm
(0.8286 ~ 0.8326 in)

21.017 mm
(0.8274 in)

Camshaft runout limit

----

0.03 mm
(0.0012 in)