![Yamaha YZ450FF 1SL-28199-11 Owner'S Service Manual Download Page 45](http://html1.mh-extra.com/html/yamaha/yz450ff-1sl-28199-11/yz450ff-1sl-28199-11_owners-service-manual_4771065045.webp)
ENGINE SPECIFICATIONS
2-6
End gap (installed)
0.35–0.50 mm (0.0138–0.0197 in)
Limit
0.85 mm (0.0335 in)
Ring side clearance
0.020–0.060 mm (0.0008–0.0024 in)
Limit
0.120 mm (0.0047 in)
Oil ring
Dimensions (B
T)
1.50
2.55 mm (0.06
0.10 in)
End gap (installed)
0.20–0.50 mm (0.0079–0.0197 in)
Crankshaft
Width A
61.95–62.00 mm (2.439–2.441 in)
Runout limit C
0.030 mm (0.0012 in)
Big end side clearance D
0.150–0.450 mm (0.0059–0.0177 in)
Balancer
Balancer drive method
Gear
Clutch
Clutch type
Wet, multiple-disc
Clutch release method
Inner push, cam push
Clutch lever free play
7.0–12.0 mm (0.28–0.47 in)
Friction plate thickness
2.92–3.08 mm (0.115–0.121 in)
Wear limit
2.85 mm (0.112 in)
Plate quantity
8 pcs
Clutch plate thickness
1.10–1.30 mm (0.043–0.051 in)
Plate quantity
7 pcs
Warpage limit
0.10 mm (0.0039 in)
Clutch spring free length
48.00 mm (1.89 in)
Minimum length
47.00 mm (1.85 in)
Spring quantity
6 pcs
Push rod bending limit
0.10 mm (0.0039 in)
Transmission
Transmission type
Constant mesh 5-speed
Primary reduction system
Spur gear
Primary reduction ratio
2.609 (60/23)
Final drive
Chain
Secondary reduction ratio
3.692 (48/13) (USA) (CAN) (AUS) (NZL) (ZAF)
3.769 (49/13) (EUR) (JPN)
Operation
Left foot operation
Gear ratio
1st
1.929 (27/14)
2nd
1.533 (23/15)
3rd
1.300 (26/20)
4th
1.091 (24/22)
5th
0.952 (20/21)
B
T
C
C
D
A
Summary of Contents for YZ450FF 1SL-28199-11
Page 6: ...EAS1SL5006 YAMAHA MOTOR CORPORATION U S A YZ MOTORCYCLE LIMITED WARRANTY...
Page 10: ......
Page 38: ...CLEANING AND STORAGE 1 26...
Page 66: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 27...
Page 68: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 29...
Page 70: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 31...
Page 72: ...CABLE ROUTING DIAGRAM 2 33 EAS1SL5066 CABLE ROUTING DIAGRAM...
Page 74: ...CABLE ROUTING DIAGRAM 2 35...
Page 76: ...CABLE ROUTING DIAGRAM 2 37...
Page 78: ...CABLE ROUTING DIAGRAM 2 39...
Page 80: ...CABLE ROUTING DIAGRAM 2 41...
Page 82: ...CABLE ROUTING DIAGRAM 2 43...
Page 122: ...ELECTRICAL SYSTEM 3 38...
Page 135: ...REAR WHEEL 4 11 1 2...
Page 192: ...CHAIN DRIVE 4 68...
Page 278: ...WATER PUMP 6 7...
Page 290: ......
Page 297: ...CHARGING SYSTEM 8 7 2 AC magneto 3 Rectifier regulator 4 Joint connector 5 Condenser...
Page 299: ...CHARGING SYSTEM 8 9...
Page 325: ...FUEL PUMP SYSTEM 8 35...
Page 326: ...ELECTRICAL COMPONENTS 8 36 EAS1SL5334 ELECTRICAL COMPONENTS EAS1SL5335 9 10 1 2 3 4 5 6 7 8...
Page 328: ...ELECTRICAL COMPONENTS 8 38 EAS1SL5336 CHECKING THE SWITCHES B Y P Sb 2 1...
Page 329: ...ELECTRICAL COMPONENTS 8 39 1 Engine stop switch 2 Neutral switch...
Page 344: ...LIST OF SELF DIAGNOSTIC AND FAIL SAFE ACTIONS 9 7...