HOW TO USE THIS MANUAL
This servloe mallUaJ de&cribes tile service procedures /of the CRFSOF
Follow the Malntenal"lOe Schltdule (Sedion 3) recommendaltoos 10
ens.url:l ilia! the \/elide illn peale. operat;,.g conditton and !he em<$$IOn
I8wIs are vmhin !he aIaodard set by !he U 5 EO'M.omental PrOlec1ioro
Age«;y (EPA) and Cel!lomia Air Resources Board (CARB)
F'Irrfoomng the Hnil scheduled maIntenance 1$ .-.ry Importanl "
comp&nS8tes lor the n.r..1 wear thaI occurs dumg the break·," penod
5ections \ and 3 apply to the wnole motorcycle SectIOn 2 Illustrates
proced!Jres for removaV",staliabon 01 components thaI may be reqUired
to perXlm1 selVice duct,b&d in the 1oI1ow'f1g $&Cllon"
Section 4 through 14 describe parIs 01 the moIorcyde. grouped
according to Mx:a1iOfl
rod !he secbOO you waN on tIu$ page. men tum to the table 01 conlants
on the Ii<$I page 01 the MCIion
MosI sactlOllS SIan wUh an assembly 01 ')'SIlIm iIIusIr.l1ion. servICe
informabOrl and IroobIes/looI,ng /0. !he S8d!OO The subseqlll!nt pages
give detailed procedVre$
II you dOO~ know !he 1IoOU1C8 01 tile trouble , go to SecIIOO 16
TroubIeshoo!lfIg
'I'our safety, and the salllly 01 0Ch&rs. if, YefY Oriportant To help )'OU
makil inb"med 08eiI!0nI we have pfOYlded safety messages and
oth&r inlormallon truOl,<ghou! tho. mat\tlfll 01 course, ~ 1$ not
1)f8ctlC81 Of possible to warn you a.bout all tile hazards IISSOC1ated
wolh servleir.g mus vehicle
You must use your own good judgemafll
You writ lind impo<tanl safety inlorrnallOO in • variety of Iorms
inclUding
• Safllrv LaDe" - on the vetude
• Safety Massages - preceded by • saJely alert symbol .l.. and
one at Ihree signal words, OAJlfGEA. WARNING_ Of CAUTION
These sqlal wotOs mean
You WILL be KILLED Of SERIOUSLY
rgt"'ntli;' HURT ~ you don'lloIkM- InSlrUCIKlrIS
You CAN be KILLED or SERIOUSLY HURT
m ' bn W "fit! II you don', tallow InslrUcttons_
You CAN be HURT ~ you don't IoIIow
"ew'''lIlf' onSlrudJOn$
• InstrUCIIOOS - how 10 .servICe mill YeI10CIe OOITectty end salary
As you read this manl,llll, you wllll , 1l(! in!o<mll!'On thai IS preceded by /I
NOnCrl symbol . The purpose 01 lhls message is to help prevent
damage to YOUl \/Ilhocte. O1I1er Pfoperty, or ttle envuonmenl
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CONTENTS
GENERAL INFORMATION
MAINTENANCE
LUBRICATION SYSTEM
FUEL SYSTEM
ENGINE REMOVAUINSTAllATION
CYLINDER HEADNALVES
CYLINDER/PISTON
CLUTCH/GEARSHIFT LINKAGE
ALTERNATOAICAM CHAIN TENS lON ER
CRANKSHAFTITRANSMISSIOWKICKSTARTER
REAR WHEEUBRAKEISUSPENSION
IGNITION SYSTEM
WIRING DIAGRAM
TROUBLESHOOTING
INDEX
SYMBOLS
The symbols used throughout this manual show specific service procedures. II supplementary information is required pertaining to
these symbols, It will be explained specifically In the text without the use of the symbolS.
g
Replace the part(s) with new ooa(s) before assembly.
"78
Use recommended engIne oil, unless otherwise specified.
-
,
78
Use molybdenum 011 solulioo (mixture 01 the engine 011 and molybdenum grease in a ratio of 1 : 1),
I
s;;;..
Use multi-purpose grease (lithium based multi-purpose grease NLGI #12 or equivalent).
-
Use molybdenum disulfide grease (containing more than 3% molybdenum disulfide, NLGI #2 or
equivalent),
.... Example: MoIykoteil BA-2 plus manufactured by Dow Corning U.S.A.
Multi·purpose M-2 manufactured by Mitsubishi Oil, Japan
-- -
Use molybdenum disulfide paste (containing more than 40% molybdenum dIsulfide, NLGI #2 or
equivalent).
Example: MolykoteQII G-n Paste manufactured by Dow Corning U.S.A.
~ Honda Moly 60 (U.S.A. only)
Rocol ASP manufactured by Rocol Limited, U.K.
Rocol Paste manufactured by Sumlco Lubricant, Japan
- -
...-'iiSIII
Use silicone grease.
a.
u
Apply a locking agent. Use a middle strength locking agent unless otherwise specified.
,J"1l!1Il
Apply sealant
I
Use DOT 4 brake lIuid. Use the recommended brake ftuid unless otherwise specified .
..
Use Fork or Suspension Fluid.
1. GENERAL INFORMATION
SERVICE RULES ............................. .. ............. 1-2
MODEL IDENTIFiCATION .............. .. .............. 1-2
GENERAL SPECiFiCATIONS .. ·.......... · .. .... ·.... 1-5
LUBRICATION SYSTEM SPECIFICATIONS · 1-6
FUEL SYSTEM SPECiFiCATIONS ........ · ........ 1-6
CYLINDER HEAD/
VALVES SPECIFICATIONS .......................... · 1-6
CYLINDER/PISTON SPECiFiCATIONS ........ · 1-7
CLUTCH/ GEARSHIFT
LINKAGE SPECIFICATIONS ·.......... ·.... · .. ·...... 1-7
ALTERNATOR/ CAM CHAIN TENSIONER
SPECiFiCATIONS .......... ·· · .. ·· .... ··.... · ...... · .. · .. ··· 1-7
CRANKSHAFT/TRANSMISSION/
KICKSTARTER SPECIFICATIONS .... · ........ · .... 1-8
FRONT WHEEL/ BRAKE/SUSPENSION/
STEERING SPECIFICATIONS· .. ··.... · ...... ·· .. · .... 1-8
REAR WHEEl/BRAKE /
SUSPENSION SPECIFICATIONS ...... ·.... · .. · .... 1-8
IGNITION SYSTEM SPECIFICATIONS ·........ ·1-9
TORQUE VALUES ...... · ........ ·............ .. .......... 1-10
LUBRICATION & SEAL POINTS · .. · .. ·.... · .. · .. ·1-13
CABLE & HARNESS ROUTING · .. ·...... · .. · .. · .. 1-14
EMISSION CONTROL SYSTEMS ........ · ...... ·1- 17
•
1-1
GENERAL INFORMATION
SERVICE RULES
1. Use genuine Honda or Honda-recommended parts and lubricants or the ir equivalents . Parts that don 't meet Honda's
design specifications may cause damage to the motorcycle.
2. Use the special tools designed for this product to avoid damage and incorrect assembly.
3. Use only metric tools when servicing the motorcycle. Metric bolts, nuts and screws are nol interchangeable with
English fasteners.
4. Install new gaskets, O-rings. cotter pins, and lock plates when reassembling.
5. When tightening bolts or nuts, begin with the larger diameter or i nner bolt first. Then tighten to the spec if ied torque
diagonally in incremental steps unless a particular sequence is specified.
6. Clean parts in cleaning solvent upon disassembly. Lubricate any sl iding surfaces before reassembly.
7. After reassembly, check all parts for proper installation and operation.
8. Route all electrical wires as shown on page 1-14, Cable and Harness Routing .
MODEL IDENTIFICATION
1-2
,
The Vehicle Identification Number (VIN) is stamped on the left side of
the steering head.
The engine serial number is stamped on the lower left side of the
crankcase.
The model identification label (U.S.A.) or th e safety Certification label
(Canada) is located on right side of the steering head.
The carburetor identification number is stamped on the right side of
the carburetor body as shown .
GENERAL INFORMATION
1-3
GENERAL INFORMATION
' 04 - '07: The Vehicle Emission Conlrol Information label is attached
on the reverse side of the left side cover.
After ' 07 : The Vehicle Emission Control Information label is attach ad ,----------,------- - -
to the leh fro nl fork (U.S.A.) or both front forks (Canada). AFTER ' 07 : EM ISSION CONTROL
INFORMATION LABEL (Canada)
EM ISSION CONTROL INFORMATION
LABElIU.5A and Canada)
The color label is allached on the left side of the main frame. When P--- .... .., ....... ,
ordering color.-coded parts, always specify the deslgnaled color code.
1-4
GENERAL SPECIFICATIONS
I I
Overall width
Overall height
Wheelbase
Sea t height
Foolpeg height
Ground clearance
Curb weight
Front suspension
Front wheel travel
Rear suspension
Rear wheel tr avel
Rear damper
Front tire size
Rear tire size
Tire brand (CHENG SHIN)
Front brake
Rear brake
Casler angle
Trail length
Fuel lank capacity
Fuel tank reserve capacity
Displacement
Compression ratio
Valve train
Intake valve opens
closes
Exhaust valve opens
Lubrication system
Oil pump type
Cooling system
Air filtration
Crankshaft type
dry weight
system
doses
Clutch operation system
Transmission
Primary reduction
Final reduction
Gear ratio
Gearshift panern
(' 04- '07)
(After ' 07)
('04 - '07)
al 1 mm (0.04 in) tift
at 1 mm (0.04 in) lift
at , mm (0 .04 iollift
at 1 mm (0 .04 in) Jift
,,,
2nd
3,d
GENERAL INFORMATION
mm
58 1 mm (22.9 in)
774 mm (30.5 in)
911 mm (35.9 in)
548 mm (21.6 in)
209 mm (8.2 in)
146 mm (5.8 in)
50 kg (110 Ibs)
Telescopic fork
87 mm (3.4 in)
Swingarm
70 mm (2.8 in)
Conventional type oil damper
2.50-1033J
2.50-1033J
Front/Rear: C·183A
Internal expanding shoe
Internal expanding shoe
25° 00'
32 mm (1.3 in)
3.0 liter (0.79 US gal, 0.66 Imp gal)
2.61i1er (0.69 US gal, 0.57 Imp gal)
0.9 liter (0.24 US gal, 0.20 Imp gal)
0.7 . t8US 0.15 I
49 cm' (3.0 cu·in)
10.0 : 1
Chain driven, OHC with roctet arm
7.5
0
BTDC
12.5° ABDC
22 .5° BBDC
2,so BTDC
Forced pressure and wet sump
Trochoid
Air cooled
Oiled polyurethane foam
Assembled type
, 7.2 kg (37.9 Ibs)
inclined 80°
Automatic centrifugal
3·speed
4.058 (69117)
2.642137/ '4)
3.272136111)
1.667 (25115)
1.190 (25121)
Left foot operated return system, N - 1- 2-
1-5
GENERAL INFORMATION
LUBRICATION SYSTEM SPECIFICATIONS
Canada) or equivalent mOler oil
API service classification: SG or higher
JASOT . MA
FUEL SYSTEM SPECIFICATIONS
number
PA42A
2rd groove from top
CYLINDER HEADIVALVES SPECIFICATIONS
valve guide
I
I
1-6
I
I
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HONDA CRF50F Workshop Repair Manual 2004-2012
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Description
This workshop manual for the HONDA CRF50F covers the years 2004-2012 and contains comprehensive repair, maintenance, and rebuilding instructions suitable for both professional technicians and DIY enthusiasts.
- All repair procedures are covered extensively from A-Z
- Includes high-quality photos, illustrations, and diagrams
- Compatible with Microsoft Windows 95, 98, 98SE, 2000, NT, ME, XP, Vista, and Windows 7, as well as all Mac computers
Whether you are looking to refurbish or restore your vehicle, this workshop manual provides the necessary information to save on service and repair costs. It offers easy access to complete repair procedures that can be viewed, printed, and utilized without the need for advanced computer skills. Say goodbye to cumbersome and worn-out manuals with this trusted resource.
