General
| ITEM | SPECIFICATIONS | |
| DIMENSIONS | Overall length | 2,455 mm (96.7 in) |
| Overall width | 930 mm (36.6 in) | |
| Overall height | 1,125 mm (44.3 in) | |
| Wheelbase | 1,715 mm (67.5 in) | |
| Seat height | 695 mm (27.3 in) | |
| Footpeg height | 278 mm (10.9 in) | |
| Ground clearance | 130 mm (5.1 in) | |
| Dry weight - 49 state/Canada type | 320 kg (705 lbs) | |
| - California type | 322 kg (710 lbs) | |
| Curb weight - 49 state/Canada type | 340 kg (750 lbs) | |
| - California type | 342 kg (754 lbs) | |
| Maximum weight capacity | ||
| - 49 state/California type | 183 kg (403 lbs) | |
| - Canada type | 187 kg (412 lbs) | |
| FRAME | Frame type | Double cradle |
| Front suspension | Telescopic fork | |
| Front axle travel | 110 mm (4.3 in) | |
| Rear suspension | Swingarm | |
| Rear axle travel | 100 mm (3.9 in) | |
| Front tire size | 130/70 R18 63H | |
| Rear tire size | 180/70 R16 77H | |
| Front tire brand | (Dunlop) D251F | |
| Rear tire brand | (Dunlop) D251 | |
| Front brake | Hydraulic double disc | |
| Rear brake | Hydraulic single disc | |
| Caster angle | 32° | |
| Trail length | 146 mm (5.7 in) | |
| Fuel tank capacity | 17.0 liter (4.49 US gal, 3.74 Imp gal) | |
| ENGINE | Cylinder arrangement | 2 cylinders 52° V transverse |
| Bore and stroke | 101.0 x 112.0 mm (3.98 x 4.41 in) | |
| Displacement | 1,795 cm³ (109.5 cu-in) | |
| Compression ratio | 9.0 : 1 | |
| Valve train | Chain driven, OHC | |
| Intake valve opens - at 1 mm | 8° BTDC | |
| Intake valve closes - (0.04 in) lift | 52° ABDC | |
| Exhaust valve opens — | 48° BBDC | |
| Exhaust valve closes — | 12° ATDC | |
| Lubrication system | Forced pressure and dry sump | |
| Oil pump type | Trochoid | |
| Cooling system | Liquid cooled | |
| Air filtration | Paper element | |
| Engine dry weight | 122.5 kg (270 lbs) | |
| Firing order | Front - 232° - Rear - 488° - Front - | |
| Cylinder number | Front: #1, Rear: #2 | |
| CARBURETION | Type | PGM-FI (Programmed Fuel Injection) |
| Throttle bore | 42 mm (1.7 in) | |
| DRIVE TRAIN | Clutch system | Multi-plate, wet |
| Clutch operation system | Hydraulic operating | |
| Transmission | Constant mesh, 5-speeds | |
| Primary reduction | 1.571 (55/35) | |
| Secondary reduction (Output drive reduction) | 0.944 (17/18) | |
| Final reduction | 3.091 (34/11) | |
| Gear ratio | ||
| - 1st | 2.353 (40/17) | |
| - 2nd | 1.478 (34/23) | |
| - 3rd | 1.111 (30/27) | |
| - 4th | 0.871 (27/31) | |
| - 5th | 0.697 (23/33) | |
| Gearshift pattern | Left foot operated return system, 1-N-2-3-4-5 | |
| ELECTRICAL | Ignition system | Computer-controlled digital transistorized with electric advance |
| Starting system | Electric starter motor | |
| Charging system | Triple phase output alternator | |
| Regulator/rectifier | SCR shorted/triple phase, full wave rectification | |
| Lighting system | Battery | |
Lubrication system
| ITEM | STANDARD | SERVICE LIMIT | ||
| Engine oil capacity | After draining | 3.5 liter (3.7 US qt, 3.1 Imp qt) | — | |
| After draining/filter change | 3.7 liter (3.9 US qt, 3.3 Imp qt) | — | ||
| After disassembly | 4.5 liter (4.8 US qt, 4.0 Imp qt) | — | ||
| Recommended engine oil | Pro HONDA GN4 or HP4 4-stroke oil (U.S.A, and Canada) or Honda 4-stroke oil (Canada only), or equivalent motor oil API service classification SF or SG Viscosity: SAE 10W-40 | — | ||
| Oil pressure at oil pressure switch | 530 kPa (5.4 kgf/cm², 77 psi) at 5,000 rpm/(80°C/176°F) | —- | ||
| Oil pump rotor | Feed pump | Tip clearance | 0.15 (0.006) | 0.20 (0.008) |
| Body clearance | 0.15-0.21 (0.006-0.008) | 0.35 (0.014) | ||
| Side clearance | 0.02 - 0.07 (0.001 -0.003) | 0.10 (0.004) | ||
| Scavenge pump | Tip clearance | 0.15 (0.006) | 0.20 (0.008) | |
| Body clearance | 0.15-0.21 (0.006-0.008) | 0.35 (0.014) | ||
| Side clearance | 0.02 - 0.07 (0.001 - 0.003) | 0.10 (0.004) | ||
Fuel system (programmed fuel injection)
| ITEM | SPECIFICATIONS |
| Throttle body identification number | GQ42A |
| Idle speed | 800±100 rpm |
| Throttle grip free play | 2-6 mm (1/16-1/4 in) |
| Intake air temperature sensor resistance (at 20°C/68°F) | 1 - 4 kΩ |
| Engine coolant temperature sensor resistance (at 20°C/68°F) | 2.3 - 2.6 kΩ |
| Fuel injector resistance (at 20°C/68°F) | 13.4-14.2 Ω |
| PAIR solenoid valve resistance (at 20°C/68°F) | 20 - 24 Ω |
| Cam pulse generator peak voltage (at 20°C/68°F) | 0.7 V minimum |
| Ignition pulse generator peak voltage (at 20°C/68°F) | 0.7 V minimum |
| Manifold absolute pressure at idle | 290 mm Hg |
| Fuel pressure at idle | 343 kPa (3.5 kgf/cm², 50 psi) |
| Fuel pump flow (at 12 V) | 188 cm³ (6.4 US oz, 6.6 Imp oz) minimum/10 seconds |
Cooling system
| ITEM | SPECIFICATIONS | |
| Coolant capacity | Radiator and engine | 2.60 liter (2.75 US qt, 2.29 Imp qt) |
| Reserve tank | 0.46 liter (0.49 US qt, 0.40 Imp qt) | |
| Radiator cap relief pressure | 108 - 137 kPa (1.1 - 1.4 kgf/cm², 16 - 20 psi) | |
| Thermostat | Begin to open | 80-84°C (176-183°F) |
| Fully open | 95°C (203°F) | |
| Valve lift | 8 mm (0.3 in) minimum | |
| Recommended antifreeze | Pro Honda HP coolant or equivalent high quality ethylene glycol antifreeze containing silicate-free corrosion inhibitors | |
| Standard coolant concentration | 1:1 mixture with soft water | |
Cylinder head/valves
| ITEM | STANDARD | SERVICE LIMIT Unit: mm (in) | ||
| Cylinder compression | 657 kPa (6.7 kgf/cm², 95 psi) at 320 rpm | — | ||
| Valve clearance | IN | 0.13±0.02 (0.005±0.001) | — | |
| EX | 0.32±0.02 (0.013±0.001) | — | ||
| Camshaft Cam lobe height | IN | 39.953 - 40.033 (1.5729 - 1.5761) | 39.92 (1.572) | |
| EX | 39.423 - 39.503 (1.5521 - 1.5552) | 39.40 (1.551) | ||
| Runout | — | 0.05 (0.002) | ||
| Oil clearance | 0.040 - 0.101 (0.0016 - 0.0040) | 0.12 (0.005) | ||
| Rocker arm, rocker arm shaft | Rocker arm shaft O.D. | IN/EX | 13.976 - 13.994 (0.5502 - 0.5509) | 13.92 (0.548) |
| Rocker arm I.D. | IN/EX | 14.006 - 14.024 (0.5514 - 0.5521) | 14.05 (0.553) | |
| Rocker arm-to-rocker arm shaft clearance | 0.012 - 0.048 (0.0005 - 0.0019) | 0.14 (0.006) | ||
| Valve, valve guide | Valve stem O.D. | IN | 6.575 - 6.590 (0.2589 - 0.2594) | 6.57 (0.259) |
| EX | 7.955 - 7.970 (0.3132 - 0.3138) | 7.94 (0.313) | ||
| Valve guide I.D. | IN | 6.600 - 6.615 (0.2598 - 0.2604) | 6.635 (0.2612) | |
| EX | 8.000 - 8.015 (0.3150 - 0.3156) | 8.055 (0.3171) | ||
| Stem-to-guide clearance | IN | 0.010 - 0.040 (0.0039 - 0.0016) | 0.08 (0.003) | |
| EX | 0.030 - 0.060 (0.0012 - 0.0024) | 0.12 (0.005) | ||
| Valve guide projection above cylinder head | IN | 16.4- 16.6 (0.646-0.654) | — | |
| EX | 17.7- 17.9 (0.697-0.705) | — | ||
| Valve seat width | IN | 1.10- 1.30 (0.043-0.051) | 1.70 (0.669) | |
| EX | 1.40 - 1.60 (0.055 - 0.063) | 2.00 (0.079) | ||
| Valve spring free length | IN | 43.5 (1.71) | 41.9 (1.65) | |
| EX | 44.2 (1.74) | 42.4 (1.67) | ||
| Cylinder head warpage | — | 0.10 (0.004) | ||
Cylinder/piston
| ITEM | STANDARD | SERVICE LIMIT Unit: mm (in) | |||
| Piston, piston rings | Piston O.D. at 18mm (0.7in) from bottom | 100.97 - 100.99 (3.9752 - 3.9760) | 100.91 (3.973) | ||
| Piston pin bore I.D. | 24.002 - 24.008 (0.9450 - 0.9452) | 24.018 (0.9456) | |||
| Piston pin O.D. | 23.994 - 24.000 (0.9446 - 0.9449) | 23.984 (0.9443) | |||
| Piston-to-piston pin clearance | 0.002 - 0.014 (0.0001 - 0.0006) | 0.034 (0.0013) | |||
| Piston ring end gap Piston ring-to-ring groove clearance | Top | 0.25-0.40 (0.010-0.016) | 0.55 (0.022) | ||
| Second | 0.40-0.55 (0.016-0.022) | 0.70 (0.028) | |||
| Oil (side rail) Top | 0.20-0.70 (0.008-0.028) 0.015 - 0.050 (0.0006 - 0.0020) | 0.90 (0.035) 0.07 (0.003) | |||
| Second | 0.015 - 0.050 (0.0006 - 0.0020) | 0.07 (0.003) | |||
| Cylinder | I.D. | 101.000 - 101.015 (3.9763 - 3.9770) | 101.05 (3.978) | ||
| Out-of-round | — | 0.10 (0.004) | |||
| Taper | — | 0.10 (0.004) | |||
| Warpage | — | 0.10 (0.004) | |||
| Cylinder-to-piston clearance | 0.01 - 0.045 (0.0004 - 0.0018) | 0.32 (0.126) | |||
| Connecting rod small end I.D. | 24.020 - 24.041 (0.9457 - 0.9465) | 24.051 (0.9469) | |||
| Connecting rod-to-piston pin clearance | 0.020 - 0.047 (0.0008 - 0.0019) | 0.07 (0.003) | |||
Clutch/gearshift linkage
| ITEM | STANDARD | SERVICE LIMIT Unit: mm (in) | |||
| Recommended clutch fluid | DOT 4 brake fluid | — | |||
| Clutch master cylinder | Cylinder I.D. | 12.700 - 12.743 (0.5000 - 0.5017) | 12.76 (0.502) | ||
| Piston O.D. | 12.657 - 12.684 (0.4983 - 0.4994) | 12.65 (0.498) | |||
| Clutch | Spring free length | 58.2 (2.29) | 56.7 (2.23) | ||
| Disc thickness | 3.72-3.88 (0.146-0.153) | 3.1 (0.12) | |||
| Plate warpage | — | 0.30 (0.012) | |||
| Clutch outer guide I.D. | 27.995 - 28.012 (1.1022 - 1.1028) | 28.8 (1.106) | |||
| Mainshaft O.D. at clutch outer guide | 27.980 - 27.993 (1.1016-1.1021) | 27.970 (1.1012) | |||
Alternator/starter clutch
| ITEM | STANDARD | SERVICE LIMIT Unit: mm (in) | |
| Starter driven gear boss | O.D. | 57.759 - 57.768 (2.2740 - 2.2743) | 57.639 (2.2692) |
| I.D. | 44.000 - 44.016 (1.7323 - 1.7329) | 44.10 (1.736) | |
Crankshaft/transmission
| ITEM | STANDARD | SERVICE LIMIT Unit: mm (in) | ||
| Crankshaft | Connecting rod side clearance | 0.10 -0.25 (0.004-0.010) | 0.28 (0.011) | |
| Crankpin bearing oil clearance | 0.032 - 0.062 (0.0015 - 0.0024) | 0.070 (0.0028) | ||
| Main journal bearing oil clearance | 0.030-0.054 (0.0011 -0.0021) | 0.068 (0.0027) | ||
| Runout | — | 0.05 (0.002) | ||
| Shift fork, fork shaft | I.D. | 14.000 - 14.018 (0.5512 - 0.5519) | 14.04 (0.553) | |
| Claw thickness | 5.93-6.00 (0.233-0.236) | 5.83 (0.230) | ||
| Shift fork shaft O.D. | 13.966 - 13.984 (0.5498 - 0.5506) | 13.956 (0.5494) | ||
| Transmission | Gear I.D. | M4, M5 | 31.000 - 31.025 (1.2205 - 1.2215) | 31.035 (1.2218) |
| C1 | 30.000-30.025 (1.1811 -1.1821) | 30.035 (1.1825) | ||
| C2/C3 | 33.000 - 33.025 (1.2992 - 1.3002) | 33.035 (1.3006) | ||
| Gear bushing O.D. | M4,M5 | 30.950 - 30.975 (1.2185 - 1.2195) | 30.94 (1.218) | |
| C1 | 25.987 - 26.000 (1.0232 - 1.0236) | 25.977 (1.0227) | ||
| C2/C3 | 32.950 - 32.965 (1.2972 - 1.2978) | 32.94 (1.297) | ||
| Gear-to-bushing clearance | M4, M5 | 0.025 - 0.075 (0.0010 - 0.0030) | 0.095 (0.0037) | |
| C2/C3 | 0.035 - 0.075 (0.0014 - 0.0030) | 0.095 (0.0037) | ||
| Gear bushing I.D. | M4 | 27.985 - 28.006 (1.1018 - 1.1025) | 28.03 (1.104) | |
| C1 | 22.050 - 22.150 (0.8681 - 0.8720) | 22.170 (0.8728) | ||
| C2/C3 | 30.000 -30.030 (1.1811 - 1.1823) | 30.050 (1.1831) | ||
| Mainshaft O.D. | at M4 | 27.959 - 27.980 (1.1007 - 1.1016) | 27.940 (1.1000) | |
| clutch outer guide | 27.980 - 27.993 (1.1016 - 1.1021) | 27.970 (1.1012) | ||
| Countershaft O.D. | at C1 | 21.980 - 21.993 (0.8653 - 0.8659) | 21.97 (0.865) | |
| at C2/C3 | 29.959 - 29.980 (1.1795 - 1.1803) | 29.94 (1.179) | ||
| Bushing-to-shaft clearance | M4 | 0.005 - 0.047 (0.0002 - 0.0019) | 0.067 (0.0026) | |
| C1 | 0.057 - 0.170 (0.0022 - 0.0067) | 0.190 (0.0075) | ||
| C2/C3 | 0.020-0.071 (0.0008-0.0028) | 0.091 (0.0036) | ||
Final drive
| ITEM | STANDARD | SERVICE LIMIT Unit: mm (in) | |
| Recommended final drive oil | Hypoid gear oil, SAE #80 | — | |
| Final drive oil capacity | at disassembly | 150 cm³ (5.1 US oz, 5.3 Imp oz) | — |
| at draining | 120 cm³ (4.1 US oz, 4.2 Imp oz) | — | |
| Final drive gear backlash | 0.05-0.015(0.002 -0.006) | 0.30 (0.012) | |
| Backlash difference between measurement | — | 0.10 (0.004) | |
| Ring gear-to-stop pin clearance | 0.30-0.60 (0.012-0.024) | — | |
| Final drive gear assembly preload | 0.2 - 0.4 N·m (2-4 kgf·cm, 1.7 - 3.5 lbf·ft) | — | |
Front wheel/suspension/steering
| ITEM | STANDARD | SERVICE LIMIT Unit: mm (in) | ||
| Minimum tire tread depth | — | 1.5 (0.06) | ||
| Cold tire pressure | Up to 90 kg (200 lb) load | 225 kPa (2.25 kgf/cm², 33 psi) | — | |
| Up to maximum weight capacity | 225 kPa (2.25 kgf/cm², 33 psi) | — | ||
| Axle runout | — | 0.2 (0.01) | ||
| Wheel rim runout | Radial | — | 2.0 (0.08) | |
| Axial | — | 2.0 (0.08) | ||
| Wheel balance weight | — | 60 g (2.1 oz) max. | ||
| Fork | Spring free length | Right | 329.7 (12.98) | 323.1 (12.72) |
| Left | 329.7 (12.98) | 323.1 (12.72) | ||
| Slider runout | — | 0.20 (0.008) | ||
| Recommended fork fluid | Pro Honda Suspension Fluid SS-8 | — | ||
| Fluid level | Right | 111 (4.4) | — | |
| Left | 110 (4.3) | — | ||
| Fluid capacity | Right | 686±2.5 cm³ (23.2±0.08 US oz, 24.1 + 0.09 Imp oz) | — | |
| Left | 770±2.5 cm³ (26.0±0.08 US oz, 27.1±0.09 Imp oz) | — | ||
| Steering head bearing pre-load | 0.8-1.2 kgf(1.8-2.6 lbf) | — | ||
Rear wheel/suspension
| ITEM | STANDARD | SERVICE LIMIT Unit: mm (in) | |
| Minimum tire tread depth | — | 2.0 (0.08) | |
| Cold tire pressure | Up to 90 kg (200 lb) load | 225 kPa (2.25 kgf/cm², 33 psi) | — |
| Up to maximum weight capacity | 250 kPa (2.50 kgf/cm², 36 psi) | — | |
| Axle runout | — | 0.2 (0.01) | |
| Wheel rim runout | Radial | — | 2.0 (0.08) |
| Axial | — | 2.0 (0.08) | |
| Wheel balance weight | — | 60 g (2.1 oz) max. | |
| Shock absorber | Spring adjuster standard position | Position 2 | — |
Hydraulic brake
| ITEM | STANDARD | SERVICE LIMIT Unit: mm (in) | ||
| Front | Specified brake fluid | DOT 4 | — | |
| Brake disc thickness | 4.5 (0.18) | 3.5 (0.14) | ||
| Brake disc runout | _ | 0.30 (0.012) | ||
| Master cylinder I.D. | 14.000 - 14.043 (0.5512 - 0.5529) | 14.055 (0.5533) | ||
| Master piston O.D. | 13.957 - 13.984 (0.5495 - 0.5506) | 13.94 (0.549) | ||
| Right caliper cylinder I.D. | A | 27.000 - 27.050 (1.0630 - 1.0650) | 27.060 (1.0654) | |
| B | 22.650 - 22.700 (0.8917 - 0.8937) | 22.710 (0.8941) | ||
| C | 25.400 - 25.450 (1.0000 - 1.0020) | 25.460 (1.0024) | ||
| Right caliper piston O.D. | A | 26.935 - 26.968 (1.0604 - 1.0617) | 26.910 (1.0594) | |
| B | 22.585 - 22.618 (0.8892 - 0.8905) | 22.560 (0.8882) | ||
| C | 25.335 - 25.368 (0.9974 - 0.9967) | 25.320 (0.9968) | ||
| Left caliper cylinder I.D. | A | 22.650 - 22.700 (0.8917 - 0.8937) | 22.710 (0.8941) | |
| B | 25.400 - 25.450 (1.0000 - 1.0020) | 25.460 (1.0024) | ||
| Left caliper piston O.D. | A | 22.585 - 22.618 (0.8892 - 0.8905) | 22.560 (0.8882) | |
| B | 25.335 - 25.368 (0.9974 - 0.9967) | 25.320 (0.9968) | ||
| Rear | Specified brake fluid | DOT 4 | — | |
| Brake pedal height | 65.0±1.0 (2.56±0.03) | — | ||
| Brake disc thickness | 7.0 (0.28) | 6.0 (0.24) | ||
| Brake disc runout | — | 0.30 (0.012) | ||
| Master cylinder I.D. | 17.460 - 17.503 (0.6874 -0.6891) | 17.515 (0.6896) | ||
| Master piston O.D. | 17.417 - 17.444 (0.6857 -0.6868) | 17.405 (0.6852) | ||
| Caliper cylinder I.D. | 33.960 - 34.010 (1.3370 - 1.3390) | 34.020 (1.3394) | ||
| Caliper piston O.D. | 33.878 - 33.928 (1.3338 - 1.3357) | 33.870 (1.3335) | ||
Battery/charging system
| ITEM | SPECIFICATIONS | ||
| Battery | Capacity | 12V-18 Ah | |
| Current leakage | 0.1 mA max. | ||
| Voltage (20°C/68°F) | Fully charged | 13.0-13.2 V | |
| Needs charging | Below 12.3 V | ||
| Charging current | Normal | 1.8 A/5- 10 h | |
| Quick | 9.0 A/1.0 h | ||
| Alternator | Capacity | 0.4 kW/5,000 rpm | |
| Charging coil resistance (20°C/68°F) | 0.1 - 1.0 Ω | ||
Ignition system
| ITEM | SPECIFICATIONS |
| Spark plug: Standard | IFR6L11 (NGK) VK20PRZ11 (DENSO) |
| Spark plug: For cold climate/below 5°C/41°F | IFR5L11 (NGK) VK16PRZ11 (DENSO) |
| Spark plug: For extended high speed riding | IFR7L11 (NGK) VK22PRZ11 (DENSO) |
| Spark plug gap | 1.0 - 1.1 mm (0.039 - 0.043 in) |
| Ignition coil peak voltage | 100 V minimum |
| Ignition pulse generator peak voltage | 0.7 V minimum |
| Ignition timing ("F" mark) | 8° BTDC at idle |
Electric starter
| ITEM | STANDARD | SERVICE LIMIT Unit: mm (in) |
| Starter motor brush length | 12.0 - 13.0 (0.47-0.51) | 4.5 (0.18) |
Lights/meters/switches
| ITEM | SPECIFICATIONS | ||
| Bulbs | Headlight | Hi | 12V-60W |
| Lo | 12V-55W | ||
| Brake/tail light | 12V-21/5Wx2 | ||
| Front turn signal/running light | 12V - 21/5W x 2 | ||
| Rear turn signal light | 12V - 21W x 2 | ||
| License light | 12V -5W | ||
| Instrument light | L.E.D. | ||
| Turn signal indicator | 12V- 1.4W | ||
| High beam indicator | 12V-2.0W | ||
| Neutral indicator | 12V- 1.4W | ||
| Oil pressure indicator | 12V- 1.4W | ||
| PGM-FI warning indicator | 12V- 1.4W | ||
| Coolant temperature indicator | 12V- 1.4W | ||
| Fuel reserve indicator | 12V - 1.4W | ||
| Fuse | Main fuse | 30 A | |
| PGM-FI fuse | 30 A | ||
| Sub fuse | 10 Ax 4, 20 Ax 2 | ||
| Fan motor switch | Start to close (ON) | 98-102°C (208-216 T) | |
| Stop to open | 93-97°C (199-207°F) | ||