ENGINE (YP125R)
3-15
9. Start the engine, warm it up for several min-
utes, turn it off, and then check for oil leak-
age.
EAS37P1096
REPLACING THE AIR FILTER ELEMENT
TIP
Check hoses are located on the bottom of the air
filter case. If dust or water or both collects in a
hose, remove the clamp from the hose, and then
remove the plug to drain the hose.
1. Remove:
• Air filter case cover “1”
• Air filter element
2. Check:
• Air filter element
Damage
→
Replace.
TIP
• Replace the air filter element every 12000 km
of operation.
• The air filter needs more frequent service if you
are riding in unusually wet or dusty areas.
3. Install:
• Air filter element
• Air filter case cover
NOTICE
ECA37P1045
Never operate the engine without the air filter
element installed. Unfiltered air will cause
rapid wear of engine parts and may damage
the engine. Operating the engine without the
air filter element will also affect the throttle
body tuning, leading to poor engine perfor-
mance and possible overheating.
TIP
When installing the air filter element into the air
filter case cover, make sure that the sealing sur-
faces are aligned to prevent any air leaks.
EAS37P1097
CLEANING THE V-BELT CASE AIR FILTER
ELEMENT
1. Remove:
• V-belt case cover “1”
• V-belt case air duct “2”
• V-belt case air filter element
2. Clean:
• V-belt case air filter element
(with solvent)
WARNING
EWA37P1020
Never use low flash point solvents, such as
gasoline, to clean the V-belt case air filter el-
ement. Such solvents may cause a fire or an
explosion.
TIP
After cleaning, gently squeeze the V-belt case
air filter element to remove the excess solvent.
NOTICE
ECA37P1046
Do not twist the V-belt case air filter element
when squeezing it.
1
1
2
Summary of Contents for YP125R
Page 1: ...SERVICE MANUAL 2010 37P F8197 E0 YP125R YP250R...
Page 6: ......
Page 8: ......
Page 28: ...SPECIAL TOOLS 1 19...
Page 30: ...COOLING SYSTEM DIAGRAMS YP250R 2 73 CABLE ROUTING YP250R 2 75...
Page 31: ......
Page 55: ...LUBRICATION POINTS AND LUBRICANT TYPES YP125R 2 24...
Page 62: ...CABLE ROUTING YP125R 2 31 Front fork front view A 1 1 1 1 2 2 2 3 4 5 6 7...
Page 66: ...CABLE ROUTING YP125R 2 35 Engine right side view A 7 3 2 2 2 1 3 4 5 6 7...
Page 70: ...CABLE ROUTING YP125R 2 39 Engine left side view 2 1 3 4 A 3...
Page 72: ...CABLE ROUTING YP125R 2 41 Handlebar top view A 1 2 3 4 4 5 6 7 8 9 10 11 12 13 14 15 16 17...
Page 76: ...CABLE ROUTING YP125R 2 45 Tail brake light top view 2 1 3 4 B A 1 5 6...
Page 103: ...LUBRICATION POINTS AND LUBRICANT TYPES YP250R 2 72...
Page 108: ...CABLE ROUTING YP250R 2 77 Front fork front view 1 1 2 3 4 5 6 7 1 2 A 1 2...
Page 112: ...CABLE ROUTING YP250R 2 81 Engine right side view A 7 3 2 2 2 1 3 4 5 6 7 8 B...
Page 116: ...CABLE ROUTING YP250R 2 85 Engine left side view 2 1 3 4 5 6 B A 3 7...
Page 118: ...CABLE ROUTING YP250R 2 87 Handlebar top view A 1 2 3 4 4 5 6 7 8 8 9 10 11 12 13 14 15 16 17...
Page 122: ...CABLE ROUTING YP250R 2 91 Tail brake light top view 2 1 3 4 B A 1 5 6 8 7...
Page 124: ...CABLE ROUTING YP250R 2 93...
Page 127: ......
Page 172: ...ELECTRICAL SYSTEM 3 45...
Page 175: ......
Page 240: ...REAR SHOCK ABSORBER ASSEMBLIES AND SWINGARM 4 65...
Page 245: ......
Page 305: ...CRANKSHAFT YP125R 5 60 a 1...
Page 366: ...CRANKSHAFT YP250R 5 121...
Page 394: ...THROTTLE BODY 7 11...
Page 397: ......
Page 411: ...CHARGING SYSTEM 8 14...
Page 423: ...SIGNALING SYSTEM 8 26...
Page 427: ...COOLING SYSTEM 8 30...
Page 453: ...FUEL INJECTION SYSTEM 8 56...
Page 457: ...FUEL PUMP SYSTEM 8 60...
Page 466: ...IMMOBILIZER SYSTEM 8 69 a Light on b Light off...
Page 467: ...IMMOBILIZER SYSTEM 8 70...
Page 495: ......
Page 496: ...YAMAHA MOTOR ESPA A S A...