ENGINE INSPECTION
5-1
EAS14B1052
ENGINE INSPECTION
EAS14B1053
MEASURING THE COMPRESSION PRES-
SURE
The following procedure applies to all of the
cylinders.
TIP
Insufficient compression pressure will result in
a loss of performance.
1. Measure:
• Valve clearance
Out of specification
→
Adjust.
Refer to “ADJUSTING THE VALVE
CLEARANCE” on page 3-5.
2. Start the engine, warm it up for several
minutes, and then turn it off.
3. Remove:
• Fuel tank
Refer to “FUEL TANK” on page 7-1.
• Air filter case
Refer to “AIR FILTER CASE” on page 7-
5.
• Air filter case duct
Refer to “AIR INDUCTION SYSTEM” on
page 7-21.
4. Remove:
• Ignition coils
• Spark plugs
ECA13340
Before removing the spark plugs, use com-
pressed air to blow away any dirt accumu-
lated in the spark plug wells to prevent it
from falling into the cylinders.
5. Install:
• Compression gauge “1”
6. Measure:
• Compression pressure
Out of specification
→
Refer to steps (c)
and (d).
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
a. Set the main switch to “ON”.
b. With the throttle wide open, crank the
engine until the reading on the compres-
sion gauge stabilizes.
WARNING
EWA14B1017
To prevent sparking the plug, remove all
ignition coil couplers before cranking the
engine.
TIP
The difference in compression pressure
between cylinders should not exceed 100 kPa
(1 kgf/cm², 14 psi).
c. If the compression pressure is above the
maximum specification, check the cylinder
head, valve surfaces and piston crown for
carbon deposits.
Carbon deposits
→
Eliminate.
d. If the compression pressure is below the
minimum specification, pour a teaspoonful
of engine oil into the spark plug bore and
measure again.
Refer to the following table.
Compression gauge
90890-03081
Engine compression tester
YU-33223
Standard compression pres-
sure (at sea level)
1480 kPa/350 r/min (14.8 kgf/
cm²/350 r/min, 210.5 psi/350 r/
min)
Minimum–Maximum
1290–1660 kPa/350 r/min
(12.9–16.6 kgf/cm²/350 r/min,
183.5–236.1 psi/350 r/min)
Содержание YZF-R1 2012
Страница 1: ...SERVICE MANUAL YZF R1 B 2012 1KB 28197 E0 ...
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Страница 70: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 29 EAS20410 LUBRICATION DIAGRAMS ...
Страница 72: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 31 ...
Страница 74: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 33 ...
Страница 76: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 35 ...
Страница 77: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 36 1 Main axle 2 Oil water pump assembly ...
Страница 78: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 37 ...
Страница 79: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 38 1 Main axle 2 Oil delivery pipe 2 3 Drive axle ...
Страница 80: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 39 ...
Страница 82: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 41 ...
Страница 84: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 43 ...
Страница 85: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 44 1 Balancer shaft 2 Crankshaft ...
Страница 86: ...COOLING SYSTEM DIAGRAMS 2 45 EAS20420 COOLING SYSTEM DIAGRAMS ...
Страница 87: ...COOLING SYSTEM DIAGRAMS 2 46 1 Oil water pump assembly 2 Radiator 3 Radiator fan 4 Thermostat 5 Oil cooler ...
Страница 88: ...COOLING SYSTEM DIAGRAMS 2 47 ...
Страница 89: ...COOLING SYSTEM DIAGRAMS 2 48 1 Radiator cap 2 Radiator 3 Radiator fan 4 Oil cooler ...
Страница 90: ...CABLE ROUTING 2 49 EAS20430 CABLE ROUTING ...
Страница 92: ...CABLE ROUTING 2 51 ...
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Страница 156: ...PERIODIC MAINTENANCE 3 37 ...
Страница 248: ...CHAIN DRIVE 4 89 ...
Страница 263: ...ENGINE REMOVAL 5 12 Installed depth of gasket c 3 5 mm 0 14 in ...
Страница 289: ...GENERATOR 5 38 4 Apply Sealant onto the stator coil lead grommet 1 Yamaha bond No 1215 Three Bond No 1215 90890 85505 ...
Страница 295: ...PICKUP ROTOR 5 44 Yamaha bond No 1215 Three Bond No 1215 90890 85505 ...
Страница 350: ...TRANSMISSION 5 99 ...
Страница 366: ...WATER PUMP 6 15 ...
Страница 388: ...AIR INDUCTION SYSTEM 7 21 EAS27040 AIR INDUCTION SYSTEM ...
Страница 394: ...AIR INDUCTION SYSTEM 7 27 ...
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Страница 398: ...IGNITION SYSTEM 8 1 EAS27090 IGNITION SYSTEM EAS27110 CIRCUIT DIAGRAM ...
Страница 404: ...ELECTRIC STARTING SYSTEM 8 7 EAS27160 ELECTRIC STARTING SYSTEM EAS27170 CIRCUIT DIAGRAM ...
Страница 410: ...CHARGING SYSTEM 8 13 EAS27200 CHARGING SYSTEM EAS27210 CIRCUIT DIAGRAM ...
Страница 411: ...CHARGING SYSTEM 8 14 2 AC magneto 3 Rectifier regulator 4 Joint 5 Main fuse 9 Battery 10 Engine ground 74 Engine ground ...
Страница 413: ...CHARGING SYSTEM 8 16 ...
Страница 414: ...LIGHTING SYSTEM 8 17 EAS27240 LIGHTING SYSTEM EAS27250 CIRCUIT DIAGRAM ...
Страница 418: ...SIGNALING SYSTEM 8 21 EAS27270 SIGNALING SYSTEM EAS27280 CIRCUIT DIAGRAM ...
Страница 425: ...SIGNALING SYSTEM 8 28 ...
Страница 426: ...COOLING SYSTEM 8 29 EAS27300 COOLING SYSTEM EAS27310 CIRCUIT DIAGRAM ...
Страница 429: ...COOLING SYSTEM 8 32 ...
Страница 430: ...FUEL INJECTION SYSTEM 8 33 EAS27330 FUEL INJECTION SYSTEM EAS27340 CIRCUIT DIAGRAM ...
Страница 503: ...FUEL INJECTION SYSTEM 8 106 ...
Страница 504: ...FUEL PUMP SYSTEM 8 107 EAS27550 FUEL PUMP SYSTEM EAS27560 CIRCUIT DIAGRAM ...
Страница 508: ...IMMOBILIZER SYSTEM 8 111 EAS27640 IMMOBILIZER SYSTEM EAS27650 CIRCUIT DIAGRAM ...
Страница 517: ...IMMOBILIZER SYSTEM 8 120 ...
Страница 518: ...ELECTRICAL COMPONENTS 8 121 EAS27972 ELECTRICAL COMPONENTS ...
Страница 520: ...ELECTRICAL COMPONENTS 8 123 ...
Страница 522: ...ELECTRICAL COMPONENTS 8 125 EAS27980 CHECKING THE SWITCHES ...
Страница 546: ...ELECTRICAL COMPONENTS 8 149 ...
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