Technical Data; Engine; Engine Tolerance, Wear Limits - KTM 2013 690 SMC R EU Repair Manual

21

TECHNICAL DATA

21.1

Engine

Design
Displacement
Stroke
Bore
Compression ratio
Control
Valve diameter, intake
Valve diameter, exhaust
Valve play, cold
Crankshaft bearing
Conrod bearing
Piston pin bearing
Pistons
Piston rings
Engine lubrication
Primary transmission
Clutch
Gearbox
Transmission ratio
1st gear
2nd gear
3rd gear
4th gear
5th gear
6th gear
Mixture preparation
Ignition
Alternator
Spark plug
Spark plug electrode gap
Cooling
Idle speed
Coolant temperature: ≥ 70 °C (≥ 158 °F)
Starting aid
21.2

Engine tolerance, wear limits

Camshafts - diameter, bearing pin
Next to exhaust cam
Next to inlet cam
Valve spring
Minimum length (without valve spring cap)
Valve spring cap - thickness
Valve - valve stem diameter
Exhaust
Intake
Valve guide - diameter
New condition
Wear limit
Valve - sealing seat width
Intake
1-cylinder 4-stroke engine, water-cooled
690 cm³ (42.11 cu in)
84.5 mm (3.327 in)
102 mm (4.02 in)
12.5:1
OHC, 4 valves controlled via rocker arm, chain drive
40 mm (1.57 in)
34 mm (1.34 in)
0.07... 0.13 mm (0.0028... 0.0051 in)
2 roller bearings
Needle bearing
Piston pin with DLC coating
Forged light alloy
1 L-ring, 1 tapered compression piston ring, 1 oil scraper ring
Semi-dry sump lubrication with two rotor pumps
36:79
APTC™ antihopping clutch in oil bath/hydraulically operated
6-gears, claw-shifted
14:35
16:28
21:28
21:23
23:22
23:20
Electronic fuel injection
Contactless controlled fully electronic ignition with digital igni-
tion adjustment
12 V, 224 W
NGK LKAR 8AI - 9
0.9 mm (0.035 in)
Water cooling, permanent circulation of coolant by water pump
1,550... 1,650 rpm
Electric starter, automatic decompressor
≥ 39.95 mm (≥ 1.5728 in)
≥ 17.96 mm (≥ 0.7071 in)
42.3 mm (1.665 in)
2.4... 2.5 mm (0.094... 0.098 in)
≥ 5.93 mm (≥ 0.2335 in)
≥ 5.93 mm (≥ 0.2335 in)
6.004... 6.016 mm (0.23638... 0.23685 in)
6.050 mm (0.23819 in)
1.60 mm (0.063 in)
173