Honda Crf 250 M Manual

Technical Information
Technical Information137 This section contains dimensions, capacities, and
other technical data.Vehicle Identification .......................................138
Specifications ...................................................139
Torque Specifications .......................................140
High Altitude  Carburetor Adjustment ..............143
Oxygenated Fuels .............................................144
Competition Logbook ......................................145...

Vehicle Identification
138Technical Information
Serial Numbers
The frame, VIN, and engine serial numbers are
required when you register your motorcycle.
They may also be required when ordering
replacement parts.  You may record these
numbers in the Quick Reference section at the
rear of the manual.
The VIN (vehicle identification number) (1)
appears on the Safety Certification Label
attached to the left side of the frame.
LEFT SIDE
(1) vehicle identification number
The frame number (2) is stamped on the...

Specifications
Technical Information139
Overall length 
Overall width 
Overall height 
Wheelbase 
Seat height 
Footpeg height 
Ground clearance 
Dry weight Item English
85.5 in
32.6 in
50.3 in
58.2 in
38.0 in
17.6 in
14.2 in
204 IbsMetric
Type  Dimension 
Frame 
Fork oil capacity 
(except fork damper
per leg)  F. suspension
R. suspension 
F. tire size, pressure 
psi (kPa, kgf/cm
2) 
R. tire size, pressure 
psi (kPa, kgf/cm
2) 
F. brake, swept area 
R. brake, swept area 
Fuel capacity 
Caster angle
Trail...

Torque Specifications
140Technical Information
Nuts, Bolts, Fasteners
Check and tighten nuts, bolts, and fasteners before every outing.
Engine
Item 
1
2
3
4
5
6
7
8
9
10ENGINE
Cylinder head cover
Exhaust pipe joint nut
Water pump cover
Crankshaft hole cap
Transmission oil check 
bolt
Clutch cover
Cylinder bolt
Oil filter cover
Cylinder head bolt
Drive sprocket
Torque
Remarks
lbf
•ft N
•m kgf
•m
7
15
7
11
7
7
7
9
7
2310
21
10
15
10
10
10
12
10
311.0
2.1
1.0
1.5
1.0
1.0
1.0
1.2
1.0
3.2
(8)
(9)
(7)
(10)...

Torque Specifications
Technical Information141 Frame
Item 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20FRAME
Steering stem nut
Fork bridge upper pinch
bolts
Fork bridge lower pinch
bolts
Handlebar upper
holder bolts
Handlebar holder nuts
Front axle nut
Front axle pinch bolts
Rear axle nut
Chain adjuster lock nuts
Engine mounting bolts
Front engine hanger
bracket bolts
Mid engine hanger
bracket bolt
Upper engine hanger
plate bolts
           (engine side)
           (frame side)
Shock absorber...

Torque Specifications
142Technical Information
Item 
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41FRAME
Front brake master
cylinder holder bolts
Brake hose bolts
Caliper mounting bolts
Front brake disc nuts
Rear brake disc nuts
Brake pedal pivot bolt
Front spoke
Rear spoke
Rim locks
Subframe bolts  (upper)
                        (Iower)
Fork center bolt
Fork center lock nut
Disc cover bolts
Fork protector bolts
Muffler mounting
bolts                     (front)...

Technical Information143
High Altitude  Carburetor Adjustment
NOTICE
When operating this motorcycle at high altitude,
the air-fuel mixture becomes overly rich.
Above 6,500 feet (2,000 m), driveability and
performance may be reduced and fuel
consumption increased.  The carburetor can be
modified to compensate for this high altitude
richness.
However, the carburetor must be returned to
standard factory specifications when lower
altitude riding is desired.  See your Honda dealer
for high altitude...

144Technical Information
Oxygenated Fuels
Some conventional gasolines are being blended
with alcohol or an ether compound.  These
gasolines are collectively referred to as
oxygenated fuels.  To meet clean air standards,
some areas of the United States and Canada use
oxygenated fuels to help reduce emissions.
If you use an oxygenated fuel, be sure it is
unleaded and meets the minimum octane rating
requirement.
Before using an oxygenated fuel, try to confirm
the fuel’s contents.  Some states/provinces...

Consumer Information145
Competition Logbook
Any serious competition effort relies heavily on
the knowledge gained and compiled from
previous racing events.  The best way to organize
the many bits of information is to record them in
a logbook.
Your logbook can include such information as
suspension adjustments, carburetor adjustments,
gearing, and tire selection.  This detailed
information, along with your comments, can
prove valuable when you compete at the same
track or on similar terrain.
Your logbook...

Date Running  Location/Event Comments (Jetting, Suspension Settings, Gearing, Chassis Adjustments, Maintenance 
Time Performed, etc.)
(Make several photocopies of this page for future use)
146Consumer Information
Competition Logbook