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MZ Baghira 660

 

Technical Data and Service

Alternative Parts

 
 
Engine
 
  Type
  Bore x stroke
  Compression ratio
  Maximum power
  Maximum torque
  
Yamaha 4NN (YF) (LC 4S 1)
4-stroke, liquid-cooled, single cylinder 16° forward, SOHC 5 valve chain-driven, dry sump lubrication.
100 x 84 mm
9.2 +-0.4 : 1
37 kw (50 hp) at 6500 rpm
57 Nm at 5250 rpm
 
 
Dry weight
173/180 kg
Wheelbase
1530 mm (60.2 inches)
Rake / trail
26.8 degrees / 94 mm
 
 
Front suspension
Marzocchi Magnum 45mm telescopic fork
 
14 adjustments (Martzsoch, MP Racing)
 
Oil SAE 7.5 - SAE 10
Oil level: 135 mm (ca. 580 ml) (Street Moto)
           150 mm (ca. 700 ml) (Street Moto HR)
 
oil seals  : 45-58-11  (45x58x11 mm)
dust seals : 45 58.4 4.6 14 mm
             (45 ID, 58.4 OD, 4.6 seated depth, 14 height)
 
bushings : inner (stanchion) : 45x20x1 mm
           outer (slider)    : 45x25x2.5 mm
(As listed by Race Tech for both USD and conventional Marzocchi 45mm forks.)
spring spacers:  OD = 38, ID = 32, L = 50 mm
 
 
Rear suspension
WP monoshock 
 
mounting bolts, center to center
Baghira Enduro, Baghira Street Moto         : 425 mm
Baghira HR, Baghira Street Moto HR, Mastiff : 412 mm
 
spring length, spring rate
Baghira Enduro, Baghira Street Moto         : 260 mm    75 Nm
Baghira HR, Baghira Street Moto HR, Mastiff : 240 mm    85 Nm
 
 
Front brake
Rear brake
Grimeca 282mm single disc, Grimeca 2 piston floating caliper
Grimeca 245mm single disc, Grimeca 1 piston floating caliper
 
Front brake disc: 
Yamaha YZF-R1 (298 mm) 1999-2002 
              1999      part# 4SV-2581T-00-00
              2000      part# 5JJ-2581T-01-00
              2001-2003 part# 5JJ-2581T-11-00
              OD 298 mm  ID 132 mm  
              bolt PCD 150 mm
(Also YZF-R6, XJR1300, FJR1300.)
 
Brake pads:           front    rear
             Ferodo   FDB782   FDB828 
             EBC      FA177    FA173
             Vesrah   VD-982   VD-425
             SBS      681      684
             Braking  740      743
             Aprilia  8113456  8113595, 8113375
 
Rear brake light switch: KTM LC4 -98
Front brake light switch: BMW part# 61 31 1 244 070
 
 
 
Front tyre
Rear tyre
120/70-17  3.50
160/60-17  4.50
 
 
Fuel capacity
     reserve
12.5 litres
 2.5 litres
 
 
Valve clearance  (cold)
intake  : 0.10 - 0.15 mm  (0.004” - 0.006”)
exhaust : 0.15 – 0.20 mm  (0.006” – 0.008”)
 
 
Spark plug
NGK DPR8EA-9    gap 0.8 - 0.9mm
 
NGK DP  8 EA-9   (standard)
NGK DPR 8 EA-9   (standard, resistor) 
                         
NGK DP  8 EV-9   (fine)
NGK DP  8 EVX-9  (Platinum)
NGK DPR 8 EVX-9  (Platinum)
NGK DPR 8 EIX-9  (Iridium) 
 
DENSO X24EP-U9   (standard, resistor)
DENSO X24EPR-U9  (standard)
DENSO X24EP-ZU9  (Platinum, resistor)
DENSO X24EPR-ZU9 (Platinum)
DENSO IX24B      (Iridium)
DENSO IXU01-24   (Iridium, racing)
 
Autolite   4164  (standard)
Autolite MP4164  (Platinum)
 
Champion RA8HC   (standard)
Champion 8812    (fine wire)
 
http://www.sparkplugs.com/ for explanation of spark plug codes
 
Oil filter
Yamaha part# 4X7-13440-90
Perf-form J-511
Purolator PremiumPLUS ML16805
Twin Air 140010 
Fram CH6005
Air filter
Note: All cross-references based on Twin Air OEM filter being that used for the KTM models listed here under Twin Air.
 
Twin Air (OEM)                                      http://www.twinair.com/
    154512 
    (KTM 400 LC4 93-99, 600 LC4 93-99, 620 LC4 94-99)
 
UniFlow / Unifilter Australia                    http://www.uniflow.com.au/
    NU 1405ST 
    (KTM 600 LC4 93; 400 LC4, 620 LC4, 640 LC4 93-01)
    (unconfirmed)
 
Moose                     http://www.mooseoffroad.com/
    M762-50-02            www.mooseoffroad.com/pdf/AirFilters05.pdf
    (KTM 400 LC4 93-99, KTM 620 LC4 94-96)
 
Carburetor
YDIS (Yamaha Dual Intake System) 
primary carburetor   : Teikei CV 23mm
secondary carburetor : Teikei CV 35mm (36mm ?)
 
Primary opens 7 mm before secondary begins opening.
Air screw 2.5 turns out
Float height 25 - 27 mm
Kraftstoffstand 6.0 - 8.0 mm to float chamber interface
 
               Primary      Secondary
main jet       #130         #165
needle         5D93-3/5     5x7c-3/5
needle jet     V-00         Ø 2.7
pilot jet      #48          --
 
Yamaha SZR 660 (1995) 
carburetor identification initials 4SU-00 
               Primary      Secondary
main jet       #140          #165
main air jet   Ø 1.0        Ø 1.0
needle         5D96-3/5     5x7c-4/5
needle jet     V-00         Ø 2.7
pilot air jet  Ø 0.6
pilot jet      #50
pilot output   0.8
bypass         Ø 1.0
pilot screw    ca. 3 turns open
valve seat     Ø 2.5
starter jet    #76
fuel level     6.0 - 8.0 mm to float chamber interface
float height   25.0 – 27.0 mm
suction pressure at engine idle speed 26.6 – 34.6 kPa (200-260 mmHg)
 
Yamaha XT 600 (1995-)
Same carbs; some very minor differences noticed in parts diagrams.
 
Yamaha XT600 1995 part numbers:
 
primary main jet #120 : 288-14343-60-00
                 #130 : 288-14343-65-00 (STOCK)
                 #140 : 288-14343-70-00
 
primary pilot jet #48 : 43F-14342-24-00
 
plunger, starter: 2KF-14371-01-00
  (to replace cable operation with plunger/knob operation)
 
Keihin 99101-393-xxx main jet for primary carb:
  small round slotted main jets, 5 x 0.75 mm thread
  Have been used in the primary carb but are not exactly the same 
  dimensions as the stock hex jets.
 
Ignition
CDI
Yamaha XTZ 660, Yamaha SZR 660.
Yamaha SZR 660 (1995): NIPPONDENSO TNDF19 
     maximum ignition advance (BTDC) 38° at 6500 rpm
     minimum ignition advance (BTDC) 12° at 1300 rpm
Yamaha TDM 850 (3VD, not 4TX.) 
(rev limiter set to 8400, 
ignition advance earlier at 38° to 42°)
 
ignition coil
NIPPONDENSO JO268

primary winding resistance: 3.4~4.6Ω at 20°C

secondary winding resistance: 10.4~15.6kΩ at 20°C

resistance: 10kΩ at 20°C
 
Alternator
NIPPONDENSO TLMZ551
nominal output: 14V 24.5A at 5000 rpm
stator coil resistance: 0.20~0.30Ω at 20°C
Regulator/Rectifier 
SHINDENGEN SH569  
voltage regulator: 
    type: short circuit semiconductor
    not charged adjusted voltage: 14.2~15.2V
rectifier: 
    capacity: 25V
    resistance voltage: 240V
Battery
12V 9Ah  
dimensions:  ? mm x ? mm
Starter
starter motor
MITSUBA SM-13
output: 0.8kW
 
starter relay
HITACHI MS5D-1911  100A
 
Clutch
Clutch friction plates
 
Yamaha XTZ660, XT600 >= 1999, XT660 R, XT660 X.
 
Instrument cluster
Husqvarna TE 610-E, SM 610-S 200-2001 
speedometer part# 8000-92346
tachometer  part# 8000-92344
Ignition switch
ZADI Q933
KTM LC4 640, BMW F650 1999, Aprilia Pegaso.
Neutral switch
Yamaha part# 4KM-82540-00-00
Headlight
various KTM 640 LC4, Husqvarna, Husaberg models.
Indicators
Ducati 748, 916, 996, 998, Monster.
Triumph sportbikes 1994-2004.
various KTM 640 LC4, Husqvarna, Husaberg models.
Fuel tank cap
Acerbis Universal Large cap, part# 2070749999
Radiator guards
 
 
 
 
 
Radiator cap
KTM 640 LC4 Adventure models: 
part# 58035034000 L/S Radiator SC 
part# 58035134000 R/S Radiator SC
part# 50235033300 Snap Nut (4)
part# 0014060153 HH Collar Screw M6x1? (4)
 
1.40
Sprockets, chain

chain size 520

 
Street Moto: stock front 15 tooth, rear 43 tooth, 110 links.
Enduro     : stock front 15 tooth, rear 45 tooth, 114 links.
 
rear OEM part# 9014285000 = 45 tooth 
         part# 9014286000 = 43 tooth
 
front sprocket: Yamaha XT 600, XTZ 660, SZR 660, SRX 400.
rear sprocket : Yamaha XT 550, XT 600, XTZ 660, XV 250, XV 125.
 
JT Sprockets                                    http://www.jtsprockets.com/
JT front sprocket # JTF577.14
JT rear  sprocket # JTR857.45
JT rear  sprocket # JTA857.45 (aluminium alloy)
(last 2 digits specify number of teeth)
 
          
 
 
Renthal sprockets                                   http://www.renthal.com/
front: 342U-520-xx  14-16 tooth
    (Yamaha XT 600 1987-2003, XTZ 660 1991-1998, SZR 660)
rear: 200U-520-xx  36-50 tooth
    (Yamaha XT 600 1987-2003, XTZ 660 1991-1998, TTR 600 2004)
 
Handlebar
mount, rubber cones
Honda CRF part# 53133-KA3-832 (much firmer)
Crankshaft main bearings
6307 C3
alternative on drive side NU 307 ECJ
valve cover o-rings
intake
exhaust
 
Yamaha XTZ 660 part# 93210-71360-00
Yamaha XTZ 660 part# 93210-32172-00
 
 
 
 
 
 

 

 

 

Various Sizes and Dimensions

 
 
Grimeca brake caliper bleeder size
Grimeca brake caliper banjo bolt
front brake pad pins

 

M10*1 x 20

M8 x 45 (8mm threaded) Allen

Grimeca front brake disc hole ID for speedo magnet
7mm
Front brake disc carrier mount on wheel hub 
Distance between bolts / lochabstand
ID / innendurchmesser
 
150mm
132mm
Front brake caliper mount on fork slider 
Distance between bolts
 
40mm
ID of fork triple clamp tube for front stand pin
18mm
ID of fork sliders bottom for front wheel stand pin
17mm
Handlebar mounts M10 center to center
95mm
Clutch cable adjuster
M8x1 (fine) cable sheath OD ?mm
 

Crankcase breather hose ID

Crankcase breather airbox fitting OD

12mm
15.5mm
Carburetor vent tube ID
3/16” (4.8mm)
 
 
Exhaust header copper gasket
OD 42mm ID 32mm  3mm thick
Exhaust header tube OD
32mm
Exhaust connector pipe OD 
50mm
Exhaust gap between collector inlet tubes at slits
4.0–4.5mm
 
 
Engine oil drain plug
M14 (13.8mm) x 1.5 x 15mm
Lower oil pipe (frame downtube) sealing ring
16x20x1.5 A (2)
Lower oil pipe o-ring
11x2-WS 12.097RR  (1) 
Upper oil pipe banjo bolt sealing rings
14x18 Cu  (2)
Upper oil pipe banjo bolt
M14x1.5x30
Upper oil pipe o-ring
15x2-WS 12.097RR  (1)
Oil filler cap o-ring
20x3-WS 1.957RR  (1)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
lift stand width to fit lower frame tubes
 

 

 

Appendix 1

Document History

 

2010-07-01

Added specs of Yamaha SZR 660 (1995) carburetor

Added details of Yamaha SZR 660 (1995) CDI unit and ignition coil

Changed document to html with subfolder instead of .mht so it can be opened with browsers other than IE.

 

2010-07-10

Added Grimeca brake caliper banjo size

 

2010-07-21

Added wheel rim width

Updated brake pad part numbers

 

2012-09-08

Added valve cover o-ring Yamaha part numbers

 

2012-10-20

Added regulator/rectifier

Added radiator cap

Added front brake light switch

 

2012-10-25

Added starter motor, starter relay, alternator.

Corrected regulator/rectifier from Yamaha SZR 660 to MZ 660