ENGINE INSPECTION
5-1
EAS20041
ENGINE INSPECTION
EAS30249
MEASURE THE COMPRESSION PRESSURE
The following procedure applies to all of the cyl-
inders.
TIP
Insufficient compression pressure will result in a
loss of performance.
1. Measure:
•
Valve clearance
Out of specification
o
Adjust.
Refer to “ADJUSTING THE VALVE CLEAR-
ANCE” on page 3-5.
2. Start the engine, warm it up for several min-
utes, and then turn it off.
3. Remove:
•
Rider seat
Refer to “GENERAL CHASSIS (1)” on page
4-1.
•
Fuel tank cover
Refer to “GENERAL CHASSIS (2)” on page
4-7.
•
Fuel tank
Refer to “FUEL TANK” on page 7-1.
•
Air filter case
Refer to “AIR FILTER CASE” on page 7-4.
•
Air cut-off valve
Refer to “AIR INDUCTION SYSTEM” on
page 7-19.
•
Ignition coils
•
Spark plugs
Refer to “CAMSHAFTS” on page 5-9.
NOTICE
ECA13340
Before removing the spark plugs, use com-
pressed air to blow away any dirt accumulat-
ed in the spark plug wells to prevent it from
falling into the cylinders.
4. Install:
•
Compression gauge “1”
5. Measure:
•
Compression pressure
Out of specification
o
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 compression gauge
stabilizes.
WARNING
EWA17100
To prevent sparking the plug, remove all ig-
nition coil couplers and fuel injector cou-
plers before cranking the engine.
TIP
The difference in compression pressure be-
tween cylinders should not exceed 100 kPa (1
kgf/cm², 15 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
o
Eliminate.
d. If the compression pressure is below the min-
imum specification, pour a teaspoonful of en-
gine 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 pressure
(at sea level)
1450 kPa/250 r/min (14.5
kgf/cm²/250 r/min, 206.2 psi/250
r/min)
Minimum–maximum
1260–1630 kPa/250 r/min (12.6–
16.3 kgf/cm²/250 r/min, 179.2–
231.8 psi/250 r/min)
1
Summary of Contents for R1 Series 2015
Page 1: ...2015 SERVICE MANUAL YZF R1 YZF R1F YZF R1M YZF R1MF 2CR 28197 E0...
Page 2: ......
Page 8: ......
Page 74: ...SPECIAL TOOLS 1 65...
Page 105: ...LUBRICATION POINTS AND LUBRICANT TYPES 2 30...
Page 110: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 35 Crankcase and cylinder right side view...
Page 112: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 37 Timing chain cover and oil pipe right side view...
Page 114: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 39 Oil pump and oil cooler bottom view...
Page 116: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 41 Camshaft and balancer shaft top view...
Page 118: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 43 Crankshaft rear view...
Page 120: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 45 Crankshaft and transmission top view...
Page 122: ...COOLING SYSTEM DIAGRAMS 2 47 EAS20020 COOLING SYSTEM DIAGRAMS...
Page 124: ...COOLING SYSTEM DIAGRAMS 2 49...
Page 126: ...CABLE ROUTING 2 51 EAS20021 CABLE ROUTING Handlebar front view...
Page 128: ...CABLE ROUTING 2 53 Clutch cable right side view...
Page 130: ...CABLE ROUTING 2 55 O2 sensor lead right side view...
Page 132: ...CABLE ROUTING 2 57 Electrical components tray left side view...
Page 134: ...CABLE ROUTING 2 59 ECU Engine Control Unit left side view...
Page 136: ...CABLE ROUTING 2 61 Frame top view...
Page 138: ...CABLE ROUTING 2 63 Frame top view for YZF R1M...
Page 140: ...CABLE ROUTING 2 65 Frame top view...
Page 142: ...CABLE ROUTING 2 67 Frame top view...
Page 144: ...CABLE ROUTING 2 69 Rear fender top view...
Page 146: ...CABLE ROUTING 2 71 Rear fender left side view...
Page 148: ...CABLE ROUTING 2 73 Rear brake hose right side view...
Page 150: ...CABLE ROUTING 2 75 Front brake hose left side view...
Page 152: ...CABLE ROUTING 2 77 Front brake hose left side view...
Page 154: ...CABLE ROUTING 2 79 Hydraulic unit assembly top and left side view...
Page 156: ...CABLE ROUTING 2 81 Fuel tank top and left side view...
Page 158: ...CABLE ROUTING 2 83 Air filter case and throttle bodies top and left side view...
Page 160: ...CABLE ROUTING 2 85 Air cut off valve right side view...
Page 162: ...CABLE ROUTING 2 87 Air duct left and right side view...
Page 164: ...CABLE ROUTING 2 89 Radiator left side view...
Page 166: ...CABLE ROUTING 2 91 Radiator right side view...
Page 168: ...CABLE ROUTING 2 93 Muffler top and left side view...
Page 170: ...CABLE ROUTING 2 95 CCU top and right side view for YZF R1M...
Page 172: ...CABLE ROUTING 2 97...
Page 213: ...PERIODIC MAINTENANCE 3 39 1 1 c b c b...
Page 214: ...PERIODIC MAINTENANCE 3 40...
Page 306: ...FRONT FORK for YZF R1 4 89 Refer to ADJUSTING THE FRONT FORK LEGS for YZF R1 on page 3 23...
Page 472: ...AIR INDUCTION SYSTEM 7 19 EAS20071 AIR INDUCTION SYSTEM...
Page 478: ...AIR INDUCTION SYSTEM 7 25...
Page 489: ...IGNITION SYSTEM 8 8...
Page 497: ...ELECTRIC STARTING SYSTEM 8 16...
Page 503: ...CHARGING SYSTEM 8 22...
Page 509: ...LIGHTING SYSTEM 8 28...
Page 519: ...SIGNALING SYSTEM 8 38...
Page 525: ...COOLING SYSTEM 8 44...
Page 589: ...FUEL PUMP SYSTEM 8 108...
Page 604: ...ABS Anti lock Brake System 8 123 EAS30525 ABS COMPONENTS CHART 1 2 5 6 7 8 9 10 11 12 3 4 1...
Page 606: ...ABS Anti lock Brake System 8 125 EAS30844 ABS COUPLER LOCATION CHART 2 1 3 4 5...
Page 633: ...ABS Anti lock Brake System 8 152...
Page 653: ...COMMUNICATION CONTROL SYSTEM for YZF R1M 8 172...
Page 654: ...ELECTRICAL COMPONENTS 8 173 EAS20089 ELECTRICAL COMPONENTS...
Page 656: ...ELECTRICAL COMPONENTS 8 175 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25...
Page 658: ...ELECTRICAL COMPONENTS 8 177 EAS30549 CHECKING THE SWITCHES 2 1 3 4 6 5 7 8 9 12 13 14 10 11...
Page 694: ...EVENT CODE TABLE 9 15...
Page 698: ......
Page 699: ......
Page 700: ......