Yamaha XV17ASZ Service Manual download pdf (Page 9)

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SPEC

ENGINE SPECIFICATIONS

Item Standard Limit

Engine

Engine type Air-cooled, 4-stroke, OHV ----

Displacement 1,670 cm

----

Cylinder arrangement V-type 2-cylinder ----

Bore × stroke 97 × 113 mm (3.82 × 4.45 in) ----

Compression ratio 8.36 : 1 ----

Engine idling speed 850 ~ 950 r/min ----

Vacuum pressure at engine idling

speed

43.3 kPa (325 mm Hg, 12.8 in Hg) ----

Standard compression pressure

(at sea level)

1,200 kPa

(12.0 kgf/cm

, 171 psi) at 200 r/min

----

Camshafts

Drive system Gear drive ----

Crankcase hole inside diameter 25.000 ~ 25.021 mm (0.9843 ~ 0.9851 in) ----

Camshaft cover hole inside diameter 28.000 ~ 28.021 mm (1.1024 ~ 1.1032 in) ----

Camshaft journal diameter

(crankcase side)

24.937 ~ 24.950 mm (0.9818 ~ 0.9823 in) ----

Camshaft journal diameter

(camshaft cover side)

27.967 ~ 27.980 mm (1.1011 ~ 1.1016 in) ----

Camshaft to crankcase clearance 0.050 ~ 0.084 mm (0.0020 ~ 0.0033 in) ----

Camshaft to camshaft cover clear-

ance

0.020 ~ 0.054 mm (0.0008 ~ 0.0021 in) ----

Camshaft intake cam dimensions

Measurement A (front cylinder) 38.242 ~ 38.342 mm (1.5056 ~ 1.5095 in) 38.142 mm

(1.5017 in)

(rear cylinder) 38.241 ~ 38.341 mm (1.5055 ~ 1.5095 in) 38.141 mm

(1.5016 in)

Measurement B 31.977 ~ 32.077 mm (1.2589 ~ 1.2629 in) 31.877 mm

(1.2550 in)

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Yamaha XV17ASZ Service Manual Page 9