Cbr250r(j) and cbr250r(k) – Models, and only paint scheme differences between the cbr250rr(l) and cbr250rr(n) – Models

Covering Models

 

· CBR250(F) – MC14

· CBR250R(H) – MC17

· CBR250R(J, K) – MC19

· CBR250RR(L, N, R) – MC22

 

Written By: DOS–Boy

Date: 25^th March 2001

Updated: 28^th September 2003

Email: [e-mail]

Title Art Work by: “Unknown”

Model Photos: www.honda.co.jp

Web Site: www.cbr250.com (Rory’s page)

Disclaimer: Only use this as a guide; I don’t take any responsibility for incorrect information that may result in damages. Information Translated from the Japanese Service Manual, Produced by the Honda Corporation & Honda Japan’s Web Site.

Specifications

· Model Identification – These are all the models Honda officially made according to the CBR250 Japanese Manual;

Note: There is only electrical loom & paint scheme differences between the

CBR250R(J) and CBR250R(K) – Models, and only paint scheme differences between the CBR250RR(L) and CBR250RR(N) – Models

CBR250(F): 1986;

Aka: CBR250 Four

Engine Number: MC14E – 1000001 ~

Frame Number: MC14 – 1000001~

CBR250R(H): 1987;

Aka: CBR250 Hurricane

Engine Number: MC14E – 1000001~

Frame Number: MC17 – 1000001~

CBR250R(J): 1988;

Aka: CBR250 Single R

Engine Number: MC14E – 1000001~

Frame Number: MC19 – 1000001~

CBR250R(K): 1989;

Aka: CBR250 Single R

Engine Number: MC14E – 1000001~

Frame Number: MC19 – 1000001~

CBR250RR(L): 1990 – 1991;

Aka: CBR250 Double R

Engine Number: MC14E – 1140001~

Frame Number: MC22 – 1000001~

CBR250RR(N): 1992 – 1993;

Aka: CBR250 Double R

Engine Number: MC14E – 1140001~

Frame Number: MC22 – 1050001~

CBR250RR(R): 1994 – 1999;

Aka: CBR250 Double R

Engine Number: MC14E – 1400001~

Frame Number: MC22 – 1100001~

Note: CBR250RR(RII) – Models are just post 1997 CBR250RR(R) – Models

HRC – None of these models have been officially confirmed by Honda Japan.

CBR250R(J or K) – Rumoured to rev to 24,000rpm. Exhaust consisted

Of just header pipes, only known race was in the late 80’s “Isle of Man TT”. Different to the CBR250R’s raced in the “All Japan Series”.

HONDA – Only known information is unseen Microfiche of engine.

CBR250RR(?) – Rumoured to have the MC16E engine in a MC22

Frame. Was thought to be the next model, but never eventuated.

OTHER – Yet to be confirmed actually exists, as only external pics seen.

CBR250RR(L, N or R) Turbo – Private owner, rumoured to still be

In Japan. Blow-through system instead of EFI. Power expected around the 92BHP at the rear wheel, with modified engine internals.

· Restrictions

Speed Restriction;

CBR250(F) + CBR250R(H+J+K) + CBR250RR(L+N+R): ~180km/h

POSH Moto Firm and M–Parts make Black Boxes

OR

Remove Trigger Disc inside the Speedo

Power Restriction (Deliberate Restrictions made by Honda Corporation

to comply with Japanese Law);

CBR250(F) + CBR250R(H+J+K) + CBR250RR(L+N): None

CBR250RR(R): Inlet Port sizes reduced

Rev–Limit Restriction;

CBR250(F) + CBR250R(H+J+K) + CBR250RR(L+N+R): 18,500rpm

· General

Cylinder numbering (from left to right when sitting on bike): 1 – 2 – 3 – 4

Firing Order: 1 – 2 – 4 – 3

Spark Plugs:

Type: NGK CR9EH–9 or (CR9EHVX–9)

Gap: 0.8 – 0.9 mm

Top Speed: 180km/h (speed limited), unrestricted 200km/h (approx.)

Max Power: (BHP = PS * 0.986) (kW = BHP * 0.7457)

CBR250(F): 45PS at 14,500rpm

CBR250R(H+J+K): 45PS at 15,000rpm

CBR250RR(L+N): 45PS at 15,000rpm

CBR250RR(R): 40PS at 14,500rpm

Max Torque: (Lb/ft = kg/m * 7.233) (Nm = kg/m * 9.804)

CBR250(F): 2.5kg/m at 10,500rpm

CBR250R(H+J+K): 2.6kg/m at 10,500rpm

CBR250RR(L+N): 2.5kg/m at 12,000rpm

CBR250RR(R): 2.4kg/m at 11,500rpm

Carburettor Type: Keihin 4 x CV

Starter: Electric

Clutch: Wet Multi–Plate

Transmission: 6–speed Constant Mesh

Final Drive: Chain

Bore x Stroke: 48.5mm x 33.8mm

Displacement: 249cm³

Tyre Pressure (unless indicated on tyre sidewall);

CBR250(F) + CBR250R(H);

Front: 2.0kg/cm²

Rear: 2.5kg/cm²

CBR250R(J+K) + CBR250RR(L+N+R);

Front: 2.25kg/cm²

Rear: 2.5kg/cm²

Tyres:

CBR250(F+H);

Front: 100/80–17 52H

Rear: 130/70–17 62H

CBR250R(J+K);

Front: 100/80–17 52H

Rear: 140/70–17 66H

CBR250RR(L+N+R);

Front: 110/70R17 54H

Rear: 140/60R17 63H

Front Suspension: Conventional Forks - 37mm Diameter (No Adjustments)

Rear Suspension: Mono Shock (Preload only adjustments)

Front Brake;

CBR250(F)+CBR250R(H):???mm Dual disc,2 piston Hydraulic callipers

CBR250R(J+K):???mm Single disc, 2 piston Hydraulic callipers

CBR250RR(L+N+R): 275mm Dual disc, 2 piston Hydraulic callipers

Rear Brake;

CBR250(F): 141mm Cable Drum Brake

CBR250R(H+J+K) + CBR250RR(L+N+R): 220mm Single disc, 1 piston

Hydraulic calliper

Dimensions: (Length x Width x Height)

CBR250(F): 2000x685x1120

CBR250R(H): 2000x680x1120mm

CBR250R(J+K): 2020x685x1075mm

CBR250RR(L+N+R): 1975x675x1080mm

Wheel Base:

CBR250(F): 1370mm

CBR250R(H): 1365mm

CBR250R(J+K): 1365mm

CBR250RR(L+N+R): 1345mm

Ground Clearance:

CBR250R(F+H): 140mm

CBR250R(J+K): 135mm

CBR250RR(L+N+R): 130mm

Weight (Dry):

CBR250(F): 153kg (77kg – Front, 76kg – Rear)

CBR250R(H): 155kg (78kg – Front, 77kg – Rear)

CBR250R(J+K): 154kg (77kg – Front, 77kg – Rear)

CBR250RR(L+N): 157kg (80kg – Front, 77kg – Rear)

CBR250RR(R): 158kg (81kg – Front, 77kg – Rear)

· Engine (Liq.–cooled,4–stroke,16–valve DOHC,inline 4 Cyl.)

Engine Oil Type: API grade SE, SF or SG motorcycle oil

Engine Oil Viscosity: SAE10W–40 or SAE20W–50

Oil Capacity:

Oil change: 2.2 litres

Oil and Filter change: 2.4 litres

IN: 29.15mm

Service Limit: 29.00mm

EX: 28.85mm

Service Limit: 28.70mm

CBR250R(J+K):

IN: 29.44 – 29.68mm

Service Limit: 29.41mm

EX: 28.96 – 29.20mm

Service Limit: 28.85mm

CBR250RR(L+N):

IN: 28.94 – 29.18mm

Service Limit: 28.91mm

EX: 28.51 – 28.75mm

Service Limit: 28.48mm

CBR250RR(R):

IN: 28.72 – 28.80mm

Service Limit: 28.69mm

EX: 28.51 – 28.75mm

Service Limit: 28.48mm

Service Limit: 19.970mm

Cam Journal Oil Clearance;

Cylinders 1,2,4: 0.015 – 0.057mm

Service Limit: 0.06mm

Cylinder 3: 0.025 – 0.067mm

Service Limit: 0.07mm

Head INLET;

Stem Diameter:

CBR250(F): 3.970 – 3.995mm

Service limit – 3.965mm

CBR250R(H): 3.478 – 3.492mm

Service limit – 3.473mm

CBR250R(J+K) + CBR250RR(L+N+R): 3.481 – 3.495mm

Service limit – 3.47mm

Guide Bore Diameter:

CBR250(F): 4.000 – 4.012mm

Service limit – 4.065mm

CBR250R(H+J+K) + CBR250RR(L+N+R): 3.500 – 3.512mm

Service limit – 3.565mm

Stem to Guide Clearance:

CBR250(F): 0.005 – 0.042mm

Service limit – 0.1mm

CBR250R(H): 0.008 – 0.034mm

Service limit – 0.092mm

CBR250R(J+K) + CBR250RR(L+N+R): 0.005 – 0.042mm

Service limit – 0.1mm

Seat Width: 0.8mm

Service limit – 1.3mm

Head EXHAUST;

Stem Diameter:

CBR250(F): 3.950 – 3.975mm

Service limit – 3.935mm

CBR250R(H+J+K) + CBR250RR(L+N+R): 3.460 – 3.475mm

Service limit – 3.445mm

Guide Bore Diameter:

CBR250(F): 4.000 – 4.012mm

Service limit – 4.065mm

CBR250R(H+J+K) + CBR250RR(L+N+R): 3.500 – 3.512mm

Service limit – 3.565mm

Stem to Guide Clearance:

CBR250(F): 0.005 – 0.050mm

Service limit – 0.13mm

CBR250R(H): 0.025 – 0.052mm

Service limit – 0.132mm

CBR250R(J+K): 0.005 – 0.050mm

Service limit – 0.13mm

CBR250RR(L+N+R): 0.020 – 0.047mm

Service limit – 0.13mm

Seat Width: 1.0mm

Service limit – 1.5mm

Valve Spring Free Length (IN and EX):

CBR250(F): 37.3mm

Service limit – 36.3mm

CBR250R(H): 38.58mm

Service limit – 37.6mm

CBR250R(J+K): 37.3mm

Service limit – 36.3mm

CBR250RR(L+N+R): 37.65mm

Service limit – 36.65mm

Inlet Port Diameter:

CBR250(F): 28mm???

CBR250R(H): 30mm???

CBR250R(J+K): 32mm???

CBR250RR(L+N): 30mm???

CBR250RR(R): 25mm???

Service Limit – 0.1mm

Clutch;

Friction Plates: 7

Plain Plates (Steelies): 6

Plain Plate Warpage: 0.3mm

CBR250(F): 2.500 (35/14T) – 520 Pitch

CBR250R(H): 3.142 (44/14T) – 520 Pitch

CBR250R(J+K): 3.176 (54/17T) – 428 Pitch

CBR250RR(L+N+R): 3.058 (52/17T) – 428 Pitch

· Cooling System

Coolant Capacity:

CBR250(F+H): 1300cc (1100cc – Radiator, 200cc – Engine)

CBR250R(J+K): 1500cc (1300cc – Radiator, 200cc – Engine)

CBR250RR(L+N+R): 1570cc (1350cc – Radiator, 220cc – Engine)

Coolant: 50% Distilled Water and 50% Pure Coolant (containing corrosion

CBR250(F): VG01A

CBR250R(H): VG03A

CBR250R(J+K): VG05A

CBR250RR(L+N): VP20A

CBR250RR(R): VP20B

Carburettor Throat Diameter:

CBR250(F): 25mm

CBR250R(H): 27mm

CBR250R(J+K): 28.5mm

CBR250RR(L+N+R): 29mm

Float Heights (When measured at 30^o or needle valve seated and spring NOT compressed):

CBR250(F): 7mm

CBR250R(H): 7mm

CBR250R(J+K): 8mm

CBR250RR(L+N+R): 13.7mm

Carburettor Jet Sizes:

CBR250(F);

Main Jet: #85

Pilot Jet: #35

CBR250R(H);

Main Jet: #88

Pilot Jet: #35

CBR250R(J+K);

Main Jet: #85

Pilot Jet: #35

CBR250RR(L+N);

Main Jet: Cylinders 1+4: #105

Cylinders 2+3: #102

Pilot Jet: #35

CBR250RR(R);

Main Jet: Cylinder 1+4: #112

Cylinder 2+3: #110

Pilot Jet: #35

Carburettor Pilot Screw Mixture Settings (Stock Air-Filter,Exhaust,Ports,Jets)

CBR250(F) + CBR250R(H): 2½ screws

CBR250R(J+K): 1⁵/₈ screws

CBR250RR(L+N): 1¾ screws

CBR250RR(R): 2¹/₈ screws

· Suspension

Fork Oil: 10W Fork Oil

Fork Oil Height (from top when fork fully compressed with spring and spacer removed):

CBR250(F): 114mm or 290ml ± 2.5ml

CBR250R(H): 100mm or 302ml ± 2.5ml

CBR250R(J+K): 95mm ± 6mm or 362ml ± 2.5ml

CBR250RR(L+N+R): 83mm or 383ml ± 2.5ml

Fork Rake;

CBR250(F) + CBR250R(H): 26⁰00’’

CBR250R(J+K): 25⁰00’’

CBR250RR(L+N+R): 24⁰00’’

Fork Trail;

CBR250(F) + CBR250R(H): 97mm

CBR250R(J+K) + CBR250RR(L+N+R): 89mm

Rear Shock Spring Free Length;

CBR250(F): 186.0mm ± 3.1mm

CBR250R(H): 175.0mm ± 3.1mm

CBR250R(J+K): 168.7mm ± 3.1mm

CBR250RR(L+N+R): 140.9mm ± 3.1mm

· Wheels

Max Wheel Runout (front & back);

Main/Ignition: 10Amp

Headlights: 15Amp

Fan: 10Amp

· Bulbs

Headlights;

Japan: 60/35Watt Halogen

Park Lights;

Aust/UK: 5Watt

Japan: 1.7Watt

Brake/Tail Lights;

Aust/UK: 21/5Watt

Japan: 18/5Watt

Turn Signal Lights;

Aust/UK: 21Watt

Japan: 15Watt

Instrument Lights;

Aust/UK: 3.4Watt

Japan: 1.7Watt

· Ignition System

Firing Order: 1 – 2 – 4 – 3

Ignition Timing;

Idle (1,500rpm – Before Top Dead Centre);

CBR250(F) + CBR250R(H): 20^o BTDC

CBR250R(J+K) + CBR250RR(L+N): 23^o BTDC

CBR250RR(R): 20^o BTDC

Full Advance:???^o BTDC

Pulse Generator Coils Resistance;

CBR250(F) + CBR250R(H+J+K): 315 –385W @ 20^oC

CBR250RR(L+N+R): 340 – 420W @ 20^oC

Ignition HT Coils:

Primary Winding Resistance;

CBR250(F) + CBR250R(H): 2.6 – 3.2W @ 20^oC

CBR250R(J+K): 2.52 – 3.08W @ 20^oC

CBR250RR(L+N+R): 2.0 – 3.5W @ 20^oC

Secondary Winding Resistance (with plug caps and leads);

CBR250(F) + CBR250R(H): 21 – 29kW @ 20^oC

CBR250R(J+K): 11.7 – 14.3kW @ 20^oC

CBR250RR(L+N+R): 23 – 37kW @ 20^oC

Secondary Winding Resistance (without plug caps and leads);

CBR250(F) + CBR250R(H): 13 – 17kW @ 20^oC

CBR250R(J+K): 11.7 – 14.3kW @ 20^oC

CBR250RR(L+N+R): 13 – 17kW @ 20^oC

· Electrical System

Battery:

CBR250(F) + CBR250R(H);

Type: 12V 8Amp

Current Leakage: 0.9Amp

Voltage: 13.0 – 13.2 Volt @ 20^oC

CBR250R(J+K) + CBR250RR(L+N+R);

Type: 12V 6Amp

Current Leakage: 0.6Amp

Voltage: 13.0 – 13.2 Volt @ 20^oC

Charging System;

Current Leakage: 1mA (max)

Regulator Voltage Output;

CBR250(F) + CBR250R(H+J+K): 14 – 15V @ 1,900rpm

CBR250RR(L+N+R): 14 – 15V @ 2,000rpm

Regulator Current Output;

CBR250(F) + CBR250R(H+J+K): 18.5Amp @ 5,000rpm

CBR250RR(L+N+R): 270W @ 5,000rpm

Stator Coil Resistance;

CBR250(F) + CBR250R(H+J+K): 0.3 – 0.4W @ 20^oC

CBR250RR(L+N+R): 0.1 – 0.5W @ 20^oC

· Miscellaneous

Chain;

CBR250(F) + CBR250R(H): RK520??? or DID520???

CBR250R(J+K) + CBR250RR(L+N+R): RK428SMO or DID428VS1

Chain Slack: 20 – 25mm

Front/Rear: 4.0mm

Brake Fluid: DOT4

Or chain saw oil.

Multi–purpose grease

Daily (pre–ride)

 

· Engine/Transmission Oil Level Check

Remove dipstick and clean.

Check horn works

Check idle speed

Check clutch free play

Check spark plugs

Clean air filter

Check coolant levels

Check battery terminals

Renew spark plugs

Check headlight aim

Check side–stand spring

Change brake fluid

Check valve clearances

Renew air filter

· Every 24,000km or 2years

Change coolant

Renew fuel and brake lines

· Non–Scheduled

Check cylinder compression

Check engine oil pressure

Change fork oil

· After Re–build

Covering Models

 

· CBR250(F) – MC14

· CBR250R(H) – MC17

· CBR250R(J, K) – MC19

· CBR250RR(L, N, R) – MC22

 

Written By: DOS–Boy

Date: 25^th March 2001

Updated: 28^th September 2003

Email: [e-mail]

Title Art Work by: “Unknown”

Model Photos: www.honda.co.jp

Web Site: www.cbr250.com (Rory’s page)

Disclaimer: Only use this as a guide; I don’t take any responsibility for incorrect information that may result in damages. Information Translated from the Japanese Service Manual, Produced by the Honda Corporation & Honda Japan’s Web Site.

Specifications

· Model Identification – These are all the models Honda officially made according to the CBR250 Japanese Manual;

Note: There is only electrical loom & paint scheme differences between the

CBR250R(J) and CBR250R(K) – Models, and only paint scheme differences between the CBR250RR(L) and CBR250RR(N) – Models

CBR250(F): 1986;

Aka: CBR250 Four

Engine Number: MC14E – 1000001 ~

Frame Number: MC14 – 1000001~

CBR250R(H): 1987;

Aka: CBR250 Hurricane

Engine Number: MC14E – 1000001~

Frame Number: MC17 – 1000001~

CBR250R(J): 1988;

Aka: CBR250 Single R

Engine Number: MC14E – 1000001~

Frame Number: MC19 – 1000001~

CBR250R(K): 1989;

Aka: CBR250 Single R

Engine Number: MC14E – 1000001~

Frame Number: MC19 – 1000001~

CBR250RR(L): 1990 – 1991;

Aka: CBR250 Double R

Engine Number: MC14E – 1140001~

Frame Number: MC22 – 1000001~

CBR250RR(N): 1992 – 1993;

Aka: CBR250 Double R

Engine Number: MC14E – 1140001~

Frame Number: MC22 – 1050001~

CBR250RR(R): 1994 – 1999;

Aka: CBR250 Double R

Engine Number: MC14E – 1400001~

Frame Number: MC22 – 1100001~