Technical data of engine motorcycle (БМВ F 650 GS, 2000-2007) [Engine and systems: Engine repair]

Engine, general
Type	Single-cylinder four-stroke, double overhead camshafts driven by roller chain, 4 valves operated by bucket tappets, balancing shaft, liquid-cooled cylinder and cylinder head, integral water pump, 5-speed gearbox and dry sump lubrication.
Cylinder bore	mm (in)	100 (3.94)
Stroke	mm (in)	83.0 (3.27)
Displacement	cc	652
Compression ratio		11.5 : 1
Power output	kW (hp)	37 (50) at 6500 rpm
Max. torque	Nm	60 at 5000 rpm
Idle speed	rpm	1400
Max. continuous engine speed	rpm	7000
Max. engine speed	rpm	7500
Crankshaft (main) bearings		Plain bearing
Engine lubrication		Dry sump, with oil pump
Cylinder		Light alloy, "Nikasil" coated
Piston		Cast aluminium with 3 rings
Oil filter		Full-flow type
Oil pump		2 trochoid pumps, driven from primary output
Oil capacity	l (Imp.pints/ US quarts)	2.3 (4.05/2.43)
Oil pressure (idle speed)	bar (psi)	≥0.5 (7.11) (oil temperature 80°C/176°F)
Permissible oil consumption	l/100km (miles per Imp.pint/ miles per US quart)	0.1 (350/590)
Crank gear
Crankshaft - main bearing play
On installation	mm (in)	0.030...0.070 (0.0012...0.0028)
Wear limit	mm (in)	0.10 (0.004)
Wear limit, main bearing bore diameter	mm (in)	46.08 (1.814)
Wear limit
Main bearing journal diameter	mm (in)	47.97 (1.888)
Bearing play	mm (in)	0.10 (0.004)
Runout at crankpin
Clutch end	mm (in)	0.03 (0.001)
Magnet end	mm (in)	0.05 (0.002)
Connecting rod
Wear limit, connecting rod
Radial play
Big end bore	mm (in)	0.08 (0.003)
Small end bore	mm (in)	0.05 (0.002)
Connecting rod - axial play
On installation	mm (in)	0.30...0.65 (0.012...0.026)
Wear limit	mm (in)	0.80 (0.031)
Small-end bearing - axial play
On installation	mm (in)	22.015...22.025 (0.8668...0.8671)
Wear limit	mm (in)	22.04 (0.868)
Compensating shaft
Bearing journals
Wear limit		19.96 (0.786)
Cylinder head
Camshaft journals I/E	mm (in)	21.967...21.980 (0.8649...0.8654)
Wear limit	mm (in)	21.950 (0.8642)
Camshaft bearing play I/E	mm (in)	0.020...0.060 (0.0008...0.0023)
Wear limit	mm (in)	0.090 (0.0035)
Valves
Valve clearances with engine cold (max. 35°C/95°F)
Inlet valves	mm (in)	0.05...0.10 (0.002...0.004)
Exhaust valves	mm (in)	0.25...0.30 (0.010...0.012)
Valve timing (at 3 mm/0.12 in valve clearance)
Inlet opens		13° after TDC
Inlet closes		25° after BDC
Exhaust opens		25° before BDC
Exhaust closes		13° before TDC
Valve head dia.
Inlet	mm (in)	36 (1.41)
Exhaust	mm (in)	31 (1.22)
Stem dia.
Inlet	mm (in)	4.90...4.94 (0.193...0.194)
Wear limit	mm (in)	4.89 (0.193)
Exhaust	mm (in)	4.90...4.94 (0.193...0.194)
Wear limit	mm (in)	4.89 (0.193)
Valve stem play - installed clearance
Inlet	mm (in)	0.016...0.058 (0.0006...0.0023)
Wear limit	mm (in)	0.130 (0.0051)
Exhaust	mm (in)	0.031...0.073 (0.0012...0.0029)
Wear limit	mm (in)	0.145 (0.0057)
Valve seat angle
Inlet	°	45
Exhaust	°	45
Included valve angle
Inlet	°	15
Exhaust	°	18
Valve seat width
Inlet	mm (in)	1.05...1.35 (0.041...0.053)
Wear limit	mm (in)	1.60 (0.063)
Exhaust	mm (in)	1.25...1.55 (0.049...0.061)
Wear limit	mm (in)	2.2 (0.09)
Valve guide
Inlet Intl. dia.	mm (in)	5.006...5.018 (0.1971...0.1976)
Wear limit	mm (in)	5.080 (0.2000)
Exhaust Intl. dia.	mm (in)	5.006...5.018 (0.1971...0.1976)
Wear limit	mm (in)	5.080 (0.2000)
Bucket tappets (wear limit)
Extl. dia.	mm (in)	33.400 (1.3150)
Radial clearance in cylinder head	mm (in)	0.200 (0.0079)
Guide dia. in cylinder head	mm (in)	33.600 (1.3229)
Valve spring
On installation (free length)	mm (in)	min. 40.5 (1.60)
Wear limit	mm (in)	39.0 (1.54)
Camshafts
Wear limit
Inlet and exhaust
Bearing journal diameter	mm (in)	21.95 (0.864)
Cam height I	mm (in)	39.35...39.45 (1.545...1.553)
Cam height E	mm (in)	39.15...39.25 (1.541...1.545)
Wear limit I	mm (in)	39.25 (1.545)
Wear limit E	mm (in)	39.05 (1.537)
Bearing bore dia. in camshaft mount	mm (in)	22.040 (0.8677)
Oil pressure control valve
Coil spring length, relaxed	mm (in)	min. 14.0 (0.55)
Oil retaining valve
Coil spring length, relaxed	mm (in)	min. 14.5 (0.57)
Pistons
Piston diameter
"A"
On installation	mm (in)	99.975...99.985 (3.9361 ...3.9365)
Wear limit	mm (in)	99.940 (3.9347)
Installed clearance	mm (in)	0.015...0.040 (0.0006...0.0016)
Wear limit	mm (in)	0.090 (0.0035)
"B"
On installation	mm (in)	99.985...99.995 (3.9365...3.9369)
Wear limit	mm (in)	99.950 (3.9351)
Installed clearance	mm (in)	0.015...0.040 (0.0006...0.0016)
Wear limit	mm (in)	0.090 (0.0035)
Piston rings
1st groove Rectangular-section ring
Ring thickness	mm (in)	1.2 (0.05)
Ring thickness wear limit	mm (in)	1.15 (0.045)
End gap	mm (in)	0.2...0.4 (0.008...0.016)
End-gap wear limit	mm (in)	1.0 (0.04)
Groove-height wear limit	mm (in)	1.30 (0.051)
Ring float	mm (in)	0.03...0.065 (0.0012...0.0026)
Ring float, wear limit	mm (in)	0.15 (0.045)
2nd groove Micro-taper ring
Ring thickness	mm (in)	1.5 (0.06)
Ring thickness wear limit	mm (in)	1.45 (0.057)
End gap	mm (in)	0.2...0.4 (0.008...0.016)
End-gap wear limit	mm (in)	1.0 (0.04)
Groove-height wear limit	mm (in)	1.6 (0.06)
Ring float	mm (in)	0.03...0.065 (0.0012...0.0026)
Ring float, wear limit	mm (in)	0.15 (0.045)
3rd groove Spring-steel oil control ring
End gap	mm (in)	0.2...0.4 (0.008...0.016)
End-gap wear limit	mm (in)	1.0 (0.04)
Groove-height wear limit	mm (in)	2.6 (0.10)
Ring float	mm (in)	0.03...0.065 (0.0012...0.0026)
Ring float, wear limit	mm (in)	0.15 (0.045)
Piston pin
Piston pin dia.
Wear limit	mm (in)	21.98 (0.865)
Piston-pin play
in small end bore	mm (in)	0.015...0.029 (0.0006...0.0011)
Wear limit	mm (in)	0.050 (0.0020)
in bore in piston	mm (in)	0.012...0.021 (0.0005...0.0008)
Wear limit	mm (in)	0.050 (0.0020)
Cylinder
Bore
Cylinder "A"	mm (in)	100.000...100.012 (3.9371...3.9376)
Wear limit	mm (in)	100.03 (3.9382)
Bore
Cylinder "B"	mm (in)	100.012...100.024 (3.9376...3.9380)
Wear limit	mm (in)	100.04 (3.9387)
Timing chain
Wear limit
Distance from sealing face of plug to pis-
ton of chain tensioner	mm (in)	9.0 (0.35)
Clutch and gearbox
Clutch friction plates (8 plates)
Size per plate on installation	mm (in)	3.45...3.55 (0.136...0.140)
Wear limit for thickness of plate assembly (total)	mm (in)	27.5 (1.082)
Copper springs
Wear limit at 190 N	mm (in)	27.4 (1.079)
Oil pump
Oil pumps		primary/secondary
Housing depth (primary)	mm (in)	14 (0.6)
Housing depth (secondary)	mm (in)	19 (0.7)
Wear limit, installed clearance (radial)	mm (in)	0.25 (0.010)
Wear limit, installed clearance (axial)	mm (in)	0.25 (0.010)

Technical data of engine motorcycle (BMW F650GS)