2005 YAMAHA TTR125 engine assembly

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Page 36 of 610

YAMAHA TTR125 2005  Owners Manual 1 - 4
GEN
INFO
IMPORTANT INFORMATION
EC132000
ALL REPLACEMENT PARTS
1. We recommend to use Yamaha genuine
parts for all replacements. Use oil and/or
grease recommended by Yamaha for
assembly and adjus

Page 64 of 610

YAMAHA TTR125 2005  Owners Manual 1 - 16
GEN
INFO
TORQUE-CHECK POINTS
TORQUE-CHECK POINTS
TT-R125/TT-R125E
Engine mounting
Muffler
Steering Steering stem to
handlebar
Suspension Front Steering stem to 
front fork
Rear For link type
Re

Page 65 of 610

YAMAHA TTR125 2005  Owners Manual 1 - 17
GEN
INFO
TORQUE-CHECK POINTS
TT-R125LW/TT-R125LWE
Engine mounting
Muffler
Steering Steering stem to
handlebar
Suspension Front Steering stem to 
front fork
Rear For link type
Rear Installation

Page 86 of 610

YAMAHA TTR125 2005  Owners Manual SPEC
2 - 13
MAINTENANCE SPECIFICATIONS
Part to be tightened Thread size Q’tyTightening torque
Nm m•kg ft•lb
Spark plug M10 × 1.0 1 13 1.3 9.4
Cylinder head bolt M8 × 1.25 4 22 2.2 16
Cylinder

Page 95 of 610

YAMAHA TTR125 2005  Owners Manual SPEC
2 - 22
MAINTENANCE SPECIFICATIONS
NOTE:
- marked portion shall be checked for torque tightening after break-in o\
r before each ride.Part to be tightened Thread size Q
’ty Tightening torque
Nm

Page 158 of 610

YAMAHA TTR125 2005  Owners Manual 2 - 30
SPECCABLE ROUTING DIAGRAM
TT-R125E/TT-R125LWE
1Ground lead
2Primary coil lead
3Clamp
4Wire harness
5Starter relay lead
6Rectifier/regulator lead
7CDI magneto lead
8Air vent hose
9Neutral switch

Page 160 of 610

YAMAHA TTR125 2005  Owners Manual 2 - 31
SPECCABLE ROUTING DIAGRAM
ÎAfter fastening the starter relay
lead, pass it on the left of the
chassis.
‰Fasten the CDI magneto lead
and starter relay lead.
ÏFasten the wire harness.
ÌPass

Page 162 of 610

YAMAHA TTR125 2005  Owners Manual 2 - 32
SPECCABLE ROUTING DIAGRAM
ËAfter connecting the main
switch coupler, engine stop
switch coupler, clutch switch
coupler and start switch cou-
pler, put a connector cover on
the couplers and pus
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