40
Specifications (500)
Specifications subject to change without notice.
Specifications
(550/700/1000)
Specifications subject to change without notice.
VALVES AND GUIDES
Valve Face Diameter (max)
(intake)
(exhaust)
35.0 mm
30.5 mm
Valve/Tappet Clearance (cold engine)
(intake)
(exhaust)
0.08-0.12 mm
0.15-0.20 mm
Valve Guide/Stem Clearance (max)
(intake)
(exhaust)
0.1 mm
0.3 mm
Valve Guide Inside Diameter
5.000-5.012 mm
Valve Stem Outside Diameter
(intake)
(exhaust)
4.975-4.990 mm
4.955-4.970 mm
Valve Stem Runout (max)
0.10 mm
Valve Margin (min) (intake)
1.1 mm
Valve Face/Seat Width (min)
0.99 mm
Valve Seat Angle
45° +30’
Valve Face Radial Runout (max)
0.15 mm
Valve Spring Free Length (min)
44.73 mm
Valve Spring Tension @ 32.5 mm
(outer)
17.23 kg (37.98 lb)
CAMSHAFT AND CYLINDER HEAD
Cam Lobe Height (min)
(intake)
(exhaust)
34.71 mm
34.48 mm
Camshaft Journal/Cylinder Head Clearance
(max)
0.074 mm
Camshaft Journal Holder
(right & center)
Inside Diameter
(left)
22.01-22.04 mm
17.51-17.54 mm
Camshaft Journal Outside
Diameter (left)
(right & center)
17.466-17.480 mm
21.966- 21.980 mm
Camshaft Runout (max)
0.03 mm
Rocker Arm Inside Diameter
10.00-10.15 mm
Rocker Arm Shaft Outside Diameter
9.972-9.987 mm
Cylinder Head/Cover Distortion
(max)
0.05 mm
CYLINDER, PISTON, AND RINGS
Piston Skirt/Cylinder Clearance
0.025-0.055 mm
Piston Diameter 8 mm from Skirt End
88.96-88.98 mm
Cylinder Bore
89.005-89.015 mm
Piston Ring Free End Gap (min)
(1st)
(2nd)
8.0 mm
8.3 mm
Bore x Stroke
89.0 x 71.2 mm
Cylinder Trueness (max)
0.01 mm
Piston Ring End Gap - Installed (min)
0.3 8 mm
Piston Ring to Groove Clearance (max)(1st/2nd) 0.06 mm
Piston Ring Groove Width
(1st)
(2nd)
(oil)
1.01-1.03 mm
1.21-1.23 mm
2.01-2.03 mm
Piston Ring Thickness
(1st)
(2nd)
0.97-0.99 mm
1.17-1.19 mm
Piston Pin Bore (max)
20.008 mm
Piston Pin (min)
19.994 mm
CRANKSHAFT
Connecting Rod (small end inside diameter)
(max)
20.021 mm
Connecting Rod (big end side-to-side)
0.7 mm
Connecting Rod (small end deflection)
(max)
3.0 mm
Crankshaft (web-to-web)
60.8-60.9 mm
Crankshaft Runout (max)
0.03 mm
VALVES AND GUIDES
Valve Face Diameter (max)
(intake)
(exhaust)
31.6 mm
27.9 mm
Valve/Tappet Clearance
(intake)
(cold engine) (max)
(exhaust)
0.1016 mm
0.1524 mm
Valve Guide/Stem Clearance (max)
0.013 mm
Valve Guide/Valve Stem Deflection
(wobble method) (max)
0.35 mm
Valve Guide Inside Diameter
5.000-5.012 mm
Valve Stem Outside Diameter
4.972-4.987 mm
Valve Stem Runout (max)
0.1 mm
Valve Head Thickness (min)
2.3 mm
Valve Face/Seat Width (max)
(intake)
(exhaust)
2.25 mm
2.60 mm
Valve Seat Angle
45° +15’/+30’
Valve Face Radial Runout (max)
0.2 mm
Valve Spring Free Length (min)
38.7 mm
Valve Spring Tension @ 31.5 mm
19.0 kg (42 lb)
CAMSHAFT AND CYLINDER HEAD
Cam Lobe Height (min)
33.53 mm
Camshaft Journal/Cylinder Head
Clearance (max)
0.04 mm
Camshaft Journal Holder (right & center)
Inside Diameter
(left)
21.98-22.04 mm
17.48-17.53 mm
Camshaft Journal Outside (right & center)
Diameter
(left)
21.96-21.98 mm
17.48-17.53 mm
Camshaft Runout (max)
0.05 mm
Rocker Arm Inside Diameter (max)
12.018 mm
Rocker Arm Shaft Outside Diameter (min) 11.97 mm
Cylinder Head/Cover Distortion (max)
0.05 mm
CYLINDER, PISTON, AND RINGS
Piston Skirt/Cylinder Clearance (max)
0.025 - 0.075 mm
Cylinder Bore
91.995-92.005 mm (550)
101.992-102.008 mm (700)
91.992-92.008 mm (1000)
Piston Diameter 15 mm from Skirt End
91.940-92.975 mm
(550/1000)
101.940-101.985 mm (700)
Piston Ring Free End Gap
(1st/2nd) 12.5 mm
Bore x Stroke
92 x 82 mm (550)
102 x 85 mm (700)
92 x 71.5 mm (1000)
Cylinder Trueness (max)
0.02 mm
Piston Ring End Gap - Installed (min)
0.38 mm
Piston Ring to Groove
(1st/2nd)
Clearance (max)
0.035 mm
Piston Ring Groove Width
(1st/2nd) 0.035 mm
Piston Ring Thickness
(1st/2nd) 1.970-1.990 mm (550/700)
1.170-1.195 mm (1000)
Piston Pin Bore (max)
20.012 mm
Piston Pin Outside Diameter (min)
22.99 mm (550/700)
19.995 mm (1000)
CRANKSHAFT
Connecting Rod
(max)
(small end inside diameter)
23.021 mm (550/700)
20.021 mm (1000)
Connecting Rod (big end side-to-side)
(max)
0.6 mm (550/700)
0.95 mm (1000)
Connecting Rod (small end deflection)
(max)
0.3 mm
Crankshaft (web-to-web)
(max)
71 mm (550/700)
98 mm (1000)
Crankshaft Runout
(max)
0.03 mm
Oil Pump Gerotor Clearance (1000)(max) 0.15 mm
