3 - 22
CHK
ADJ
CHECKING THE IGNITION TIM ING/
M EASURING THE COM PRESSION PRESSURE
b. Check that the m ark
a
is w ithin the
required firing range
b
on the pickup
coil rotor.
Incorrect firing range
→
Check the
ignition system .
NOTE:
The ignition tim ing is not adjustable.
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EB303060
M EASURING THE COM PRESSION
PRESSURE
The follow ing procedure applies to all of
the cylinders.
NOTE:
Insufficient com pression pressure w ill
result in a loss of perform ance.
1. M easure:
• valve clearance
Out of specification
→
Adjust.
Refer to “ ADJUSTING THE VALVE
CLEARANCE” .
2. Start the engine, w arm it up for several
m inutes, and then stop it.
3. Rem ove:
• rider seat
• fuel tank
Refer to “ SEATS” and “ FUEL TANK” .
• air filter case
• ignition coil plate
(along w ith the ignition coils)
• rubber baffle
Refer to “ AIR FILTER CASE AND IGNI-
TION COIL PLATE” .
4. Rem ove:
• spark plug
ACHTUNG:
CAUTION:
Before removing the spark plugs, use
compressed air to blow aw ay any dirt
accumulated in the spark plug w ells to
prevent it from falling into the cylinders.
Summary of Contents for YZF-R1 98
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 ...