CHAIN DRIVE
4-59
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
3. Check:
• O-rings “1”
Damage
→
Replace the drive chain.
• Drive chain rollers “2”
Damage/wear
→
Replace the drive
chain.
• Drive chain side plates “3”
Damage/wear
→
Replace the drive
chain.
Cracks
→
Replace the drive chain.
4. Lubricate:
• Drive chain
EAS23460
CHECKING THE DRIVE SPROCKET
1. Check:
• Drive sprocket
More than 1/4 tooth “a” wear
→
Replace
the drive chain sprockets as a set.
Bent teeth
→
Replace the drive chain
sprockets as a set.
EAS23470
CHECKING THE REAR WHEEL SPROCKET
Refer to “CHECKING THE DRIVE
SPROCKET” on page 4-59.
EAS4D3F030
CHECKING THE SPROCKET BRACKET
Refer to “CHECKING THE SPROCKET
BRACKET” on page 4-14.
EAS23500
INSTALLING THE DRIVE CHAIN
1. Lubricate:
• Drive chain
• Master link
2. Install:
• Drive chain
• Drive sprocket “1”
• Lock washer “2”
• Drive sprocket nut “3”
TIP
While applying the rear brake, tighten the drive
sprocket nut.
Recommended lubricant
Engine oil or chain lubricant
suitable for O-ring chains
b. Correct
1. Drive chain roller
2. Drive chain sprocket
Recommended lubricant
Engine oil or chain lubricant
suitable for O-ring chains
Drive sprocket nut
110 Nm (11.0 m·kg, 81 ft·lb)
New
New
Summary of Contents for 2009 YFM25RY
Page 1: ...SERVICE MANUAL YFM25RY YFM25RSEY YFM25RSE2Y 4D3 28197 11 LIT 11616 22 09 2009 ...
Page 8: ......
Page 39: ...LUBRICATION POINTS AND LUBRICANT TYPES 2 20 ...
Page 42: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 23 EAS20410 LUBRICATION DIAGRAMS ...
Page 44: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 25 ...
Page 46: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 27 ...
Page 47: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 28 1 Oil cooler 2 Oil hose 1 3 Oil hose 2 ...
Page 48: ...CABLE ROUTING 2 29 EAS20430 CABLE ROUTING ...
Page 50: ...CABLE ROUTING 2 31 ...
Page 52: ...CABLE ROUTING 2 33 ...
Page 54: ...CABLE ROUTING 2 35 ...
Page 56: ...CABLE ROUTING 2 37 ...
Page 58: ...CABLE ROUTING 2 39 ...
Page 60: ...CABLE ROUTING 2 41 ...
Page 62: ...CABLE ROUTING 2 43 ...
Page 65: ......
Page 143: ...HANDLEBAR 4 42 Throttle cable free play 2 0 4 0 mm 0 08 0 16 in ...
Page 162: ...CHAIN DRIVE 4 61 ...
Page 165: ......
Page 240: ...CARBURETOR 6 9 ...
Page 242: ...IGNITION SYSTEM 7 1 EAS27090 IGNITION SYSTEM EAS27100 CIRCUIT DIAGRAM ...
Page 246: ...ELECTRIC STARTING SYSTEM 7 5 EAS27160 ELECTRIC STARTING SYSTEM EAS27170 CIRCUIT DIAGRAM ...
Page 252: ...CHARGING SYSTEM 7 11 EAS27200 CHARGING SYSTEM EAS27210 CIRCUIT DIAGRAM ...
Page 255: ...CHARGING SYSTEM 7 14 ...
Page 256: ...LIGHTING SYSTEM 7 15 EAS27240 LIGHTING SYSTEM EAS27250 CIRCUIT DIAGRAM ...
Page 260: ...SIGNALING SYSTEM 7 19 EAS27270 SIGNALING SYSTEM EAS27280 CIRCUIT DIAGRAM ...
Page 264: ...CARBURETOR HEATING SYSTEM 7 23 EAS27490 CARBURETOR HEATING SYSTEM EAS27500 CIRCUIT DIAGRAM ...
Page 267: ...CARBURETOR HEATING SYSTEM 7 26 ...
Page 268: ...ELECTRICAL COMPONENTS 7 27 EAS27972 ELECTRICAL COMPONENTS ...
Page 270: ...ELECTRICAL COMPONENTS 7 29 EAS27980 CHECKING THE SWITCHES ...
Page 284: ...ELECTRICAL COMPONENTS 7 43 ...
Page 291: ......
Page 292: ...YAMAHA MOTOR CO LTD 2500 SHINGAI IWATA SHIZUOKA JAPAN ...
Page 293: ...WIRING DIAGRAM YFM25RY YFM25RSEY YFM25RSE2Y ...