11-73F
Repair manual KTM LC4
Art.-Nr
. 3.206.024 -E
TECHNICAL SPECIFICATIONS – ENGINE 660 SMC 2005
ENGINE
660 SMC
Design
Liquid-cooled single cylinder 4-stroke engine with balancer shaft
Displacement
654 ccm
Bore / Stroke
102 / 80 mm
Ratio
11,7 : 1
Fuel
unleaded premium gasoline with a least RON 95 (USA = Premium RON 91)
Valve timing
4 valves over rocker arm and 1 overhead camshaft, camshaft drive through single chain
Camshaft
586V39
Valve diameter
Intake: 36 mm Exhaust: 32 mm
Valve clearence cold
0,12 - 0,15 mm
Crank shaft bearing
2 cylinder roller bearing
Connecting rod bearing
needle bearing
Top end bearing
bronze bushing
Piston
forged aluminium alloy
Piston rings
1 compression ring, 1 taper face ring, 1 oil scraper ring
Engine lubrication
two Eaton-oilpumps
Engine oil quantity
appr. 2.1 liters including frame (0.55 US gallons)
Primary ratio
straight geared spur wheels 31 : 79 teeth
Clutch
multi disc clutch in oil bath
Transmission
5-speed claw shifted
Gear ratio
1st gear 14:35
2nd gear 15:24
3rd gear 18:21
4th gear 20:19
5th gear 22:18
Ignition system
contactless DC-CDI ignition with digital advanced system type KOKUSAN
Ignition timing
adjustment to max. 34 ° BTDC at 6000 rpm
Generator
12V 110/40W
Spark plug
NGK DCPR 8 E
Spark plug gap
0,9 mm
Cooling system
liquid cooled, permanent rotation of cooling liquid through mechanic driven water pump
Cooling liquid
1 liter, 50% antifreeze, 50% destilled water, at least –25 ° C (–13 ° F)
Starting equipment
kickstarter
BASIC CARBURATOR SETTING
660 SMC
Type
Keihin FCR-MX 41
Carburator-setting number
4138A
Main jet
165
Jet needle
OBDVT (OBEKR)
Idling jet
42 (45)
Main air jet
200
Idling air jet
100
Needle position
5th from top (4th from top)
Starting jet
85
Mixture control screw open
2
Slide
15
Performance restrictor
Slide stop (–)
Stop pump membrane
858 / 2,15 mm
Hot start device
3,8 mm
Summary of Contents for 400-660 LC4 1998-2005
Page 2: ......
Page 3: ...REPAIRMANUAL1998 2005 400 660 LC4 KTM Group Partner...
Page 4: ......
Page 6: ......
Page 8: ......
Page 10: ......
Page 12: ......
Page 14: ......
Page 16: ......
Page 32: ......
Page 34: ......
Page 42: ......
Page 86: ......
Page 88: ......
Page 110: ......
Page 112: ......
Page 114: ......
Page 154: ...1 2 5 s g s g 3 6 7 43E...
Page 156: ...7 8 9 s g s g 3 7 45E...
Page 158: ...1 2 3 4 5 7 47E...
Page 160: ...6 9 10 11 7 49E...
Page 164: ......
Page 166: ......
Page 167: ...Repair manual KTM LC4 Art Nr 3 206 014 E 8 3E CARBURETOR MIKUNI BST 40...
Page 175: ...Repair manual KTM LC4 Art Nr 3 206 014 E 8 11E CARBURETOR DELL ORTO PHM 40 SD...
Page 179: ...Repair manual KTM LC4 Art Nr 3 206 014 E 8 15E CARBURETOR DELL ORTO PHM 38 ND...
Page 184: ...8 20E CARBURETOR DELL ORTO VHSB 38 QS...
Page 191: ...Repair manual KTM LC4 Art Nr 3 206 014 E 8 27E CARBURATOR KEIHIN FCR 41...
Page 203: ...8 39E Repair manual KTM LC4 Art Nr 3 206 014 E CARBURETOR KEIHIN FCR MX 41...
Page 214: ......
Page 216: ......
Page 226: ......
Page 236: ......
Page 314: ......
Page 324: ......
Page 364: ......
Page 370: ...13 3E...
Page 371: ...Repair manual KTM LC4 Art Nr 3 206 014 E 13 4E...
Page 372: ...13 5E...
Page 373: ...Repair manual KTM LC4 Art Nr 3 206 014 E 13 6E...
Page 374: ...13 7E...
Page 375: ...Repair manual KTM LC4 Art Nr 3 206 014 E 13 8E...
Page 376: ...13 9E...
Page 377: ...Repair manual KTM LC4 Art Nr 3 206 014 E 13 10E KTM 400 640 SC 1998...
Page 378: ...13 11E...
Page 379: ...Repair manual KTM LC4 Art Nr 3 206 014 E 13 12E...
Page 380: ...13 13E...
Page 381: ...Repair manual KTM LC4 Art Nr 3 206 014 E 13 14E...
Page 382: ...13 15E...
Page 383: ...Repair manual KTM LC4 Art Nr 3 206 014 E 13 16E...
Page 384: ...13 17E...
Page 385: ...Repair manual KTM LC4 Art Nr 3 206 014 E 13 18E...
Page 386: ...13 19E...
Page 387: ...Repair manual KTM LC4 Art Nr 3 206 014 E 13 20E...
Page 388: ...13 21E...
Page 389: ...Repair manual KTM LC4 Art Nr 3 206 014 E 13 22E...
Page 390: ...13 23E...
Page 391: ...Repair manual KTM LC4 Art Nr 3 206 014 E 13 24E...
Page 392: ...13 25E...
Page 393: ...Repair manual KTM LC4 Art Nr 3 206 014 E 13 26E...
Page 394: ...13 27E...
Page 395: ...Repair manual KTM LC4 Art Nr 3 206 014 E 13 28E...
Page 396: ...13 29E...
Page 397: ...Repair manual KTM LC4 Art Nr 3 206 014 E 13 30E...
Page 398: ...13 31E...
Page 399: ...Repair manual KTM LC4 Art Nr 3 206 014 E 13 32E...
Page 400: ...13 33E...
Page 401: ...Repair manual KTM LC4 Art Nr 3 206 014 E 13 34E...
Page 402: ...13 35E 400 640 LC4 USA...
Page 403: ...Repair manual KTM LC4 Art Nr 3 206 014 E 13 36E 400 640 LC4 USA 2000...
Page 404: ...13 37E...
Page 405: ...Repair manual KTM LC4 Art Nr 3 206 014 E 13 38E KTM 620 SC 2001...
Page 406: ...13 39E...
Page 407: ...Repair manual KTM LC4 Art Nr 3 206 014 E 13 40E...
Page 408: ...13 41E...
Page 409: ...Repair manual KTM LC4 Art Nr 3 206 014 E 13 42E...
Page 410: ...13 43E...
Page 411: ...Repair manual KTM LC4 Art Nr 3 206 014 E 13 44E...
Page 412: ...13 45E...
Page 413: ...Repair manual KTM LC4 Art Nr 3 206 014 E 13 46E KTM 640 LC4 E 2001...
Page 414: ...13 47E 625 SuperComp 2002 SERVICE...
Page 415: ...Repair manual KTM LC4 Art Nr 3 206 014 E 13 48E KTM 625 SUPER COMPETITION 2002...
Page 416: ...13 49E SERVICE 640 LC4 ADVENTURE...
Page 417: ...Repair manual KTM LC4 Art Nr 3 206 014 E 13 50E KTM 640 LC4 ADVENTURE 2002...
Page 418: ...13 51E SERVICE DUKE 2002...
Page 419: ...Repair manual KTM LC4 Art Nr 3 206 014 E 13 52E KTM DUKE 2002...
Page 424: ...13 57E 660 SMC 2003...
Page 425: ...13 58E Repair manual KTM LC4 Art Nr 3 206 014 E KTM 660 SMC 2003...
Page 426: ...13 59E...
Page 427: ...13 60E Repair manual KTM LC4 Art Nr 3 206 014 E...
Page 428: ...13 61E...
Page 429: ...13 62E Repair manual KTM LC4 Art Nr 3 206 014 E...