Content .. 20 21 22 23 ..

KTM (690 Enduro EU, 690 Enduro AUS/UK, 690 Enduro USA). Manual - part 22

TECHNICAL DATA - ENGINE

173

Design

1-cylinder 4-stroke engine, water-cooled

Displacement

654 cm³ (39.91 cu in)

Stroke

80 mm (3.15 in)

Bore

102 mm (4.02 in)

Compression ratio

11.8:1

Control

OHC, 4 valves controlled via rocker arm, chain drive

Valve diameter, intake

40 mm (1.57 in)

Valve diameter, exhaust

34 mm (1.34 in)

Valve play, cold

0.07… 0.13 mm (0.0028… 0.0051 in)

Crankshaft bearing

2 roller bearings

Conrod bearing

Needle bearing

Piston pin bearing

Bronze bush

Pistons

Forged light alloy

Piston rings

1 L-ring, 1 tapered compression piston ring, 1 oil scraper ring

Engine lubrication

Semi-dry sump lubrication with two rotor pumps

Primary transmission

36:79

Clutch

APTC™ Antihopping clutch in oil bath / hydraulically operated

Gearbox

6-gears, claw-shifted

Transmission ratio

1st gear

14:35

2nd gear

16:28

3rd gear

21:28

4th gear

21:23

5th gear

23:22

6th gear

23:20

Mixture preparation

Electronic fuel injection

Ignition

Contactless controlled fully electronic ignition with digital igni-
tion adjustment

Alternator

12 V, 224 W

Spark plug

NGK LKAR 8AI - 9

Spark plug electrode gap

0.9 mm (0.035 in)

Cooling

Water cooling, permanent circulation of coolant by water pump

Idle speed

Coolant temperature: ≥ 70 °C (≥ 158 °F)

1,550… 1,650 rpm

Starting aid

Electric starter, automatic decompressor

26.1

Capacity - engine oil

Engine oil

1.70 l (1.8 qt.)

Engine oil (SAE 10W/60) (00062010035) (

p. 208)

Alternative engine oil

Engine oil (SAE 10W/50)

(

p. 208)

26.2

Capacity - coolant

Coolant

1.20 l (1.27 qt.)

Coolant (

p. 208)

Coolant (mixed ready to use) (

p. 208)

TECHNICAL DATA - TOLERANCE, WEAR LIMITS OF ENGINE

174

Camshafts - diameter, bearing pin

Next to exhaust cam

≥ 39.95 mm (≥ 1.5728 in)

Next to inlet cam

≥ 17.96 mm (≥ 0.7071 in)

Valve spring

Minimum length (without valve spring cap)

42.3 mm (1.665 in)

Valve spring cap - thickness

2.4… 2.5 mm (0.094… 0.098 in)

Valve - valve stem diameter

Exhaust

≥ 5.93 mm (≥ 0.2335 in)

Intake

≥ 5.93 mm (≥ 0.2335 in)

Valve guide - diameter

New condition

6.004… 6.016 mm (0.23638… 0.23685 in)

Wear limit

6.050 mm (0.23819 in)

Valve - sealing seat width

Intake

1.60 mm (0.063 in)

Exhaust

2.00 mm (0.0787 in)

Valve - run-out

On the valve plate

≤ 0.05 mm (≤ 0.002 in)

On the valve stem

≤ 0.05 mm (≤ 0.002 in)

Cylinder/cylinder head - sealing area distortion

≤ 0.10 mm (≤ 0.0039 in)

Cylinder - bore diameter

Size I

102.000… 102.012 mm (4.01574… 4.01621 in)

Size II

102.013… 102.025 mm (4.01625… 4.01672 in)

Piston - diameter

Size I

101.955… 101.965 mm (4.01397… 4.01436 in)

Size II

101.965… 101.975 mm (4.01436… 4.01476 in)

Piston/cylinder - mounting clearance

New condition

0.035… 0.060 mm (0.00138… 0.00236 in)

Wear limit

0.10 mm (0.0039 in)

Piston ring - groove clearance

≤ 0.08 mm (≤ 0.0031 in)

Piston ring end gap

Compression rings

≤ 0.80 mm (≤ 0.0315 in)

Oil scraper ring

≤ 1.00 mm (≤ 0.0394 in)

Piston - piston pin hole diameter

20.010… 20.020 mm (0.78779… 0.78819 in)

Piston pin - diameter

19.995… 20.004 mm (0.7872… 0.78756 in)

Connecting rod - axial clearance of lower conrod bearing

0.40… 0.60 mm (0.0157… 0.0236 in)

Connecting rod - radial clearance of lower conrod bearing

0.05 mm (0.002 in)

Crankshaft - axial clearance

0.15… 0.25 mm (0.0059… 0.0098 in)

Crankshaft run-out at bearing pin

≤ 0.10 mm (≤ 0.0039 in)

Balancer shaft axial clearance

0.05… 0.20 mm (0.002… 0.0079 in)

Clutch facing disc - thickness

≥ 2.5 mm (≥ 0.098 in)

Intermediate disk - thickness

≥ 1.35 mm (≥ 0.0531 in)

Clutch spring - length

31.5… 33.5 mm (1.24… 1.319 in)

Clutch cage - contact surface of clutch facing discs

≤ 0.5 mm (≤ 0.02 in)

Oil pressure regulator valve - minimum spring length

27.5 mm (1.083 in)

Oil pump

Clearance between external rotor and engine case

≤ 0.20 mm (≤ 0.0079 in)

Clearance between external rotor and internal rotor

≤ 0.20 mm (≤ 0.0079 in)

Axial clearance

0.04… 0.08 mm (0.0016… 0.0031 in)

Engine oil pressure

Coolant temperature: ≥ 70 °C (≥ 158 °F)
Engine speed: 1,500 rpm

≥ 0.4 bar (≥ 6 psi)

Coolant temperature: ≥ 70 °C (≥ 158 °F)
Engine speed: 5,000 rpm

≥ 1.5 bar (≥ 22 psi)

TECHNICAL DATA - TOLERANCE, WEAR LIMITS OF ENGINE

175

Main shaft axial clearance

0.10… 0.40 mm (0.0039… 0.0157 in)

Transmission shaft run-out

≤ 0.025 mm (≤ 0.00098 in)

Shift shaft - play in sliding plate/shift quadrant

0.40… 0.80 mm (0.0157… 0.0315 in)

Fuel pressure

Under every load condition

3.3… 3.7 bar (48… 54 psi)

TECHNICAL DATA - ENGINE TIGHTENING TORQUES

176

Oil hole plug

self-tapping

9 Nm (6.6 lbf ft)

Loctite

243™

Screw, membrane fixation

2.5 Nm (1.84 lbf ft)

Loctite

243™

Hose clamp, intake flange

1.5 Nm (1.11 lbf ft)

–

Oil jet, conrod lubrication

2 Nm (1.5 lbf ft)

Loctite

243™

Locking screw for bearing

6 Nm (4.4 lbf ft)

Loctite

243™

Screw, breather cover on valve cover

3 Nm (2.2 lbf ft)

Loctite

243™

Screw, clutch spring

6 Nm (4.4 lbf ft)

–

Screw, cover plate for oil return line

6 Nm (4.4 lbf ft)

–

Screw, gear sensor

5 Nm (3.7 lbf ft)

Loctite

243™

Screw, oil filter cover

6 Nm (4.4 lbf ft)

–

Screw, oil pump cover

6 Nm (4.4 lbf ft)

Loctite

243™

Plug, vacuum connection

10 Nm (7.4 lbf ft)

Loctite

243™

Screw in alternator cover

10 Nm (7.4 lbf ft)

–

Screw, alternator cover (chain shaft
through-hole)

10 Nm (7.4 lbf ft)

Loctite

243™

Screw, autodecompression

3… 4 Nm (2.2… 3 lbf ft)

Loctite

243™

Screw, axial lock of camshaft

10 Nm (7.4 lbf ft)

Loctite

243™

Screw, camshaft support plate

10 Nm (7.4 lbf ft)

Loctite

243™

Screw, clutch cover

10 Nm (7.4 lbf ft)

–

Screw, clutch slave cylinder

M6x20

10 Nm (7.4 lbf ft)

Loctite

243™

Screw, clutch slave cylinder

M6x35

10 Nm (7.4 lbf ft)

–

Screw, cylinder

10 Nm (7.4 lbf ft)

Loctite

243™

Screw, cylinder head

10 Nm (7.4 lbf ft)

Loctite

243™

Screw, engine case

10 Nm (7.4 lbf ft)

–

Screw, ignition pulse generator

10 Nm (7.4 lbf ft)

Loctite

243™

Screw, locking lever

10 Nm (7.4 lbf ft)

Loctite

243™

Screw, rocker arm shaft

12 Nm (8.9 lbf ft)

–

Screw, shift drum locating

10 Nm (7.4 lbf ft)

Loctite

243™

Screw, shift lever

10 Nm (7.4 lbf ft)

Loctite

222

Screw, starter motor

10 Nm (7.4 lbf ft)

Loctite

243™

Screw, stator bracket

10 Nm (7.4 lbf ft)

Loctite

243™

Screw, thermostat housing

10 Nm (7.4 lbf ft)

Loctite

243™

Screw, timing chain guide rail

10 Nm (7.4 lbf ft)

Loctite

243™

Screw, timing chain tensioning rail

10 Nm (7.4 lbf ft)

Loctite

243™

Screw, valve cover

10 Nm (7.4 lbf ft)

–

Screw, water pump cover

10 Nm (7.4 lbf ft)

–

Screw, water pump wheel

10 Nm (7.4 lbf ft)

Loctite

243™

Oil jet, piston cooling

M6x0.75

4 Nm (3 lbf ft)

Loctite

243™

Plug, crankshaft location

20 Nm (14.8 lbf ft)

–

Stud, exhaust flange

10 Nm (7.4 lbf ft)

Loctite

243™

Cylinder head screw

M10

Tightening sequence:
Tighten diagonally, begin-
ning with the rear screw on
the chain shaft.
Step 1
15 Nm (11.1 lbf ft)
Step 2
30 Nm (22.1 lbf ft)
Step 3
45 Nm (33.2 lbf ft)
Step 4
60 Nm (44.3 lbf ft)

Lubricated with engine oil

Oil hole plug

M10x1

15 Nm (11.1 lbf ft)

Loctite

243™

Plug, drain hole of water pump

M10x1

15 Nm (11.1 lbf ft)

–

TECHNICAL DATA - ENGINE TIGHTENING TORQUES

177

Plug, oil bore for oil radiator

M10x1

15 Nm (11.1 lbf ft)

–

Screw, unlocking of timing chain ten-
sioner

M10x1

10 Nm (7.4 lbf ft)

–

Spark plug

M12x1.25

17 Nm (12.5 lbf ft)

–

Coolant temperature sensor on cylinder
head

M12x1.5

12 Nm (8.9 lbf ft)

–

Oil drain plug with magnet

M12x1.5

20 Nm (14.8 lbf ft)

–

Oil pressure regulator valve plug

M12x1.5

20 Nm (14.8 lbf ft)

–

Plug, oil bore

M14x1.5

15 Nm (11.1 lbf ft)

Loctite

243™

Engine case stud

M16x1.5

25 Nm (18.4 lbf ft)

Loctite

243™

Rotor nut

M18x1.5

100 Nm (73.8 lbf ft)

–

Nut, engine sprocket

M20x1.5

60 Nm (44.3 lbf ft)

Loctite

243™

Nut, inner clutch hub

M20x1.5

100 Nm (73.8 lbf ft)

Loctite

243™

Nut, primary gear

M20LHx1.5

90 Nm (66.4 lbf ft)

Loctite

243™

Plug, oil screen

M20x1.5

15 Nm (11.1 lbf ft)

–

Plug, timing chain tensioner

M20x1.5

25 Nm (18.4 lbf ft)

–

Plug, oil thermostat

M24x1.5

15 Nm (11.1 lbf ft)

–

Screw in alternator cover

M24x1.5

8 Nm (5.9 lbf ft)

–

TECHNICAL DATA - CHASSIS

178

Frame

Lattice frame made of chrome molybdenum steel tubing,
powder-coated

Fork

WP Suspension 4860 MXMA

Shock absorber

WP Suspension 4618 with Pro‑Lever deflector

Suspension travel

Front

250 mm (9.84 in)

Rear

250 mm (9.84 in)

Brake system

Front

Disc brake with dual-piston brake caliper, floating

Rear

Disc brake with single-piston brake caliper, floating

Brake discs - diameter

Front

300 mm (11.81 in)

Rear

240 mm (9.45 in)

Brake discs - wear limit

Front

4.5 mm (0.177 in)

Rear

3.5 mm (0.138 in)

Tire air pressure, road, solo

Front

1.8 bar (26 psi)

Rear

1.8 bar (26 psi)

Tire air pressure with passenger / fully loaded

Front

2.0 bar (29 psi)

Rear

2.2 bar (32 psi)

Tire air pressure, offroad, single rider

Front

1.5 bar (22 psi)

Rear

1.5 bar (22 psi)

Secondary drive ratio

15:45

Chain

5/8 x 1/4” X‑ring

Steering head angle

63°

Wheelbase

1,498±15 mm (58.98±0.59 in)

Seat height unloaded

910 mm (35.83 in)

Ground clearance unloaded

300 mm (11.81 in)

Weight without fuel approx.

138.5 kg (305.3 lb.)

Maximum permissible front axle load

150 kg (331 lb.)

Maximum permissible rear axle load

200 kg (441 lb.)

Maximum permissible overall weight

350 kg (772 lb.)

Battery

YTZ10S

Battery voltage: 12 V
Nominal capacity: 8.6 Ah
maintenance-free

Fuse

58011109130

30 A

Fuse

75011088015

15 A

Fuse

75011088010

10 A

29.1

Lighting equipment

Headlight

H4 / socket P43t

12 V
60/55 W

Parking light

W5W / socket W2.1x9.5d

12 V
5 W

Instrument lights and indicator lamps

LED

Turn signal

R10W / socket BA15s

12 V
10 W

Brake/tail light (690 Enduro EU,
690 Enduro AUS/UK)

LED

TECHNICAL DATA - CHASSIS

179

Brake/tail light (690 Enduro USA)

P21/5W / socket BAY15d

12 V
21/5 W

License plate lamp

W5W / socket W2.1x9.5d

12 V
5 W

Validity

Front tire

Rear tire

(690 Enduro EU, 690 Enduro AUS/UK)

90/90 - 21 M/C 54H TL
Metzeler Enduro 3 Sahara

140/80 - 18 M/C 70H TL
Metzeler Enduro 3 Sahara

(690 Enduro USA)

90/90 - 21 M/C 54R TT
Pirelli MT 21 RALLYCROSS

130/90 - 18 M/C 69R TT
Pirelli MT 21 RALLYCROSS

Additional information is available in the Service section under:
http://www.ktm.com

29.2

Capacity - fuel

Total fuel tank capacity,
approx.

12 l (3.2 US gal)

Super unleaded (ROZ 95 / RON 95 / PON 91) (

p. 209)

Fuel reserve, approx.

2.5 l (2.6 qt.)

TECHNICAL DATA - FORK

180

Fork part number

14.18.7D.11

Fork

WP Suspension 4860 MXMA

Compression damping

Comfort

20 clicks

Standard

15 clicks

Sport

10 clicks

Full payload

10 clicks

Rebound damping

Comfort

20 clicks

Standard

15 clicks

Sport

10 clicks

Full payload

10 clicks

Spring length with preload spacer(s)

472 mm (18.58 in)

Spring rate

Soft

5.2 N/mm (29.7 lb/in)

Medium (standard)

5.4 N/mm (30.8 lb/in)

Hard

5.6 N/mm (32 lb/in)

Fork length

890 mm (35.04 in)

Air chamber length

100

+30

−10

mm (3.94

+1.18

−0.39

in)

Fork oil per fork leg

645 ml (21.81 fl. oz.)

Fork oil (SAE 5) (

p. 209)

Content .. 20 21 22 23 ..