CAMSHAFTS
5-23
EAS30256
REMOVING THE CAMSHAFTS
1. Remove:
• Timing mark accessing bolt
• Crankshaft end cover
Refer to “GENERATOR” on page 5-43.
2. Align:
• Mark “a” on the generator rotor
(with the generator rotor cover slot “b”)
a. Turn the crankshaft counterclockwise.
b. When piston #1 is at BTDC105° on the
compression stroke, align the BTDC105°
mark “a” on the generator rotor with the
generator rotor cover slot “b”.
TIP
BTDC105° on the compression stroke can be
found when the camshaft lobes are turned away
from each other.
3. Remove:
• Timing chain tensioner
• Timing chain tensioner gasket
4. Remove:
• Camshaft cap
NOTICE
ECA13720
To prevent damage to the cylinder head,
camshafts or camshaft caps, loosen the
camshaft cap bolts in stages and in a criss-
cross pattern, working from the outside in.
5. Remove:
• Intake camshaft
• Exhaust camshaft
TIP
To prevent the timing chain from falling into the
crankcase, fasten it with a wire “1”.
EAS31655
REMOVING THE ROCKER ARMS AND
ROCKER ARM SHAFTS
1. Remove:
• Rocker arm shaft bolt
• Straight plug
• Rocker arm shaft
• Rocker arm
EAS30257
CHECKING THE CAMSHAFTS
1. Check:
• Camshaft lobes
Blue discoloration/pitting/scratches
→
Re-
place the camshaft.
2. Measure:
• Camshaft lobe dimensions “a”
Out of specification
→
Replace the camshaft.
3. Measure:
• Camshaft runout
Out of specification
→
Replace.
a
b
Camshaft lobe dimensions
Lobe height (Intake)
35.291–35.391 mm (1.3894–
1.3933 in)
Limit
35.191 mm (1.3855 in)
Lobe height (Exhaust)
34.745–34.845 mm (1.3679–
1.3718 in)
Limit
34.645 mm (1.3640 in)
1
G0
88
946
Summary of Contents for YZF-R1 2020
Page 1: ...2020 SERVICE MANUAL YZF R1 YZF R1M YZF1000L YZF1000 YZF1000DL YZF1000D B3L 28197 20 ...
Page 2: ......
Page 6: ......
Page 8: ......
Page 38: ...SPECIAL TOOLS 1 29 ...
Page 55: ...TIGHTENING TORQUES 2 16 ...
Page 60: ...CABLE ROUTING 2 21 Frame rear right side view B A C D 2 1 2 3 4 5 6 7 ...
Page 82: ...CABLE ROUTING 2 43 Front brake hose left side view A 1 1 1 1 2 2 2 3 3 3 4 4 4 3 4 ...
Page 86: ...CABLE ROUTING 2 47 Fuel tank top and left side view A B 1 2 3 4 5 2 5 ...
Page 88: ...CABLE ROUTING 2 49 Canister A E 1 2 3 4 5 6 B B B C D 7 8 9 10 E F G H E 7 10 11 ...
Page 92: ...CABLE ROUTING 2 53 Air cut off valve right side view A B C C D E 1 2 2 3 3 3 4 4 5 5 5 6 7 ...
Page 100: ...CABLE ROUTING 2 61 Muffler top and left side view 1 1 2 3 3 4 5 5 6 6 4 4 5 6 5 6 A ...
Page 104: ...CABLE ROUTING 2 65 ...
Page 107: ......
Page 149: ......
Page 171: ...GENERAL CHASSIS 5 4 22 T R Front muffler protector bolt 7 N m 0 7 kgf m 5 2 lb ft b b a a 1 ...
Page 280: ...CHAIN DRIVE 4 131 ...
Page 335: ...ELECTRIC STARTER 5 52 1 2 3 a b ...
Page 388: ...TRANSMISSION 5 105 ...
Page 406: ...WATER PUMP 6 17 ...
Page 433: ......
Page 439: ...IGNITION SYSTEM 8 6 ...
Page 447: ...CHARGING SYSTEM 8 14 ...
Page 451: ...LIGHTING SYSTEM 8 18 ...
Page 486: ...ELECTRICAL COMPONENTS 8 53 ...
Page 495: ......
Page 505: ...SYSTEM DIAGRAM 9 10 ...
Page 531: ...STEERING DAMPER SYSTEM 9 36 ...
Page 815: ...91_ABS 9 320 4 Defective hydraulic unit assembly Replace the hydraulic unit assembly ...
Page 818: ......
Page 819: ......
Page 820: ......