4 - 19
ENG
CYLINDER HEAD
EB402102
REMOVING THE CYLINDER HEAD
1. Remove:
• cylinder head bolts
• cylinder head nuts
NOTE:
Loosen each bolt and nut 1/2 of a turn at
a time, in stages and in a crisscross pat-
tern. After all of the bolts and nuts are
fully loosened, remove them.
EB402402
CHECKING THE CYLINDER HEAD
1. Eliminate:
• combustion chamber carbon deposits
(with a rounded scraper)
NOTE:
Do not use a sharp instrument to avoid
damaging or scratching:
• spark plug bore threads
• valve seats
2. Check:
• cylinder head
Damage/scratches
→
Replace.
• cylinder head water jacket
Mineral deposits/rust
→
Eliminate.
3. Measure:
• cylinder head warpage
Out of specification
→
Resurface the
cylinder head.
▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼
a. Place a straightedge
1
and a thick-
ness gauge
2
across the cylinder
head.
b. Measure the warpage.
c. If the limited is exceeded, resurface
the cylinder head as follows.
Max. cylinder head warpage
0.1 mm
Summary of Contents for YZF-R1 1998
Page 1: ...SERVICEMANUAL YZF R1 4XV1 AE1 98 ...
Page 7: ...GEN INFO 1 ...
Page 9: ...GEN INFO ...
Page 18: ...SPEC 2 ...
Page 20: ...SPEC ...
Page 41: ...2 21 SPEC Crankcase tightening sequence TIGHTENING TORQUES ...
Page 46: ...2 26 SPEC 1 Exhaust camshaft 2 Intake camshaft 3 Oil filter OIL FLOW DIAGRAMS ...
Page 47: ...2 27 SPEC 1 Cylinder head 2 Crankshaft OIL FLOW DIAGRAMS ...
Page 48: ...2 28 SPEC 1 Main axle 2 Oil delivery pipe 3 Drive axle OIL FLOW DIAGRAMS ...
Page 50: ...2 30 SPEC 1 Thermostat housing 2 Water pump 3 Radiator 4 Radiator fan OIL FLOW DIAGRAMS ...
Page 51: ...2 31 SPEC 1 Radiator cap 2 Thermostat 3 Thermostat housing 4 Water pump OIL FLOW DIAGRAMS ...
Page 52: ...2 32 SPEC 1 Radiator 2 Thermo switch 3 Temperature sender OIL FLOW DIAGRAMS ...
Page 64: ...2 44 SPEC ...
Page 65: ...CHK ADJ 3 ...
Page 134: ...ENG 4 ...
Page 224: ...4 88 ENG ...
Page 225: ...COOL 5 ...
Page 227: ...COOL ...
Page 245: ...5 18 COOL ...
Page 246: ...CARB 6 ...
Page 248: ...CARB ...
Page 264: ...6 16 CARB ...
Page 265: ...CHAS 7 ...
Page 344: ...ELEC 8 ...
Page 408: ...8 62 ELEC ...
Page 409: ...TRBL SHTG 9 ...
Page 417: ...9 6 TRBL SHTG ...