2004 YAMAHA TTR125 Timing marks

4 - 12
ENGCYLINDER HEAD
CYLINDER HEAD
CYLINDER HEAD SIDE COVER AND TAPPET COVER
Extent of removal:1 Cylinder head side cover and tappet cover removal
Extent of removal Order Part name Q’ty Remarks
CYLINDER HEAD SIDE COVER
AND TAPPET COVER
REMOVAL
Preparation for removal Seat and fuel tank Refer to “SEAT, FUEL TANK AND SIDE
COVERS” section.
Muffler Refer to “MUFFLER” section.
Carburetor Refer to “CARBURETOR” section.
CDI unit Remove from the frame.
1 Engine bracket 1
2 Spark plug 1
3 Cylinder head side cover 1
4 Tappet cover 2
5 Crankshaft end accessing screw 1
6Timing mark accessing screw
1
1

4 - 13
ENGCYLINDER HEAD
CYLINDER HEAD
Extent of removal:1 Cylinder head removal
Extent of removal Order Part name Q’ty Remarks
CYLINDER HEAD REMOVAL
1 Bolt (camshaft sprocket) 1
Refer to “REMOVAL POINTS”. 2 Bolt (timing chain tensioner cap) 1
3 Timing chain tensioner 1
4 Gasket 1
5 Camshaft sprocket 1
6 Cylinder head 1
7 Dowel pin 2
8Gasket
1
1

4 - 32
ENGCYLINDER AND PISTON
CYLINDER AND PISTON
Extent of removal:1 Cylinder removal2 Piston removal
Extent of removal Order Part name Q’ty Remarks
CYLINDER AND PISTON
REMOVAL
Preparation for removal Cylinder head Refer to “CYLINDER HEAD” section.
1 Exhaust timing chain guide 1
2 Cylinder/O-ring 1/1
3 Dowel pin 2
4 Gasket 1
5 Piston pin clip 2
Refer to “REMOVAL POINTS”. 6 Piston pin 1
7 Piston 1
8Piston ring set
1
1
2

4 - 71
ENGCRANKCASE, CRANKSHAFT AND BALANCER
Extent of removal Order Part name Q’ty Remarks
1 Intake timing chain guide 1
2 Timing chain 1
3 Bolt [45 mm (1.8 in)] 7
4 Bolt [55 mm (2.2 in)] 1
5 Bolt [30 mm (1.2 in)] 2
6 Lead guide 1
7 Clutch cable holder 1
8 Right crankcase 1
Use special tool.
Refer to “REMOVAL POINTS”.
9 Left crankcase 1
10 Balancer 1
11 Crankshaft 1 Use special tool.
Refer to “REMOVAL POINTS”.
12 Bearing 3 Refer to “REMOVAL POINTS”.
3
21