2005-2007 Yamaha YP400 Full Specifications
Get to know the 2005-2007 Yamaha YP400 in exquisite detail with our meticulously crafted motorcycle specifications tables.
Click or tap on a navigation pane below to find your way through our highly detailed, categorised 2005-2007 Yamaha YP400 specifications. Dimensions 2005-2007 Yamaha YP400 Dimensions Specifications Table
Attribute Value Overall length 2,230 mm Overall width 780 mm Overall height 1,380 mm Wheelbase 1,565 mm Seat height 750 mm Ground clearance 120 mm Wet weight 212 kg (fuel and fluids) Maximum payload 196 kg (rider, passenger, luggage and accessories) Frame 2005-2007 Yamaha YP400 Frame Specifications Table
Attribute Value Frame type Aluminium die-cast and steel tube backbone Rake / Caster angle 27 ° Trail length 100 mm Engine 2005-2007 Yamaha YP400 Engine Specifications Table
Attribute Value Engine capacity / displacement 394.9 cc Engine configuration Liquid-cooled, 4-stroke, DOHC Arrangement Forward-inclined single cylinder Bore and Stroke 83.0 mm x 73.0 mm Compression ratio 10.6 : 1 Electric start yes Cylinder Head 2005-2007 Yamaha YP400 Cylinder Head Specifications Table
Attribute Value Cylinder head warpage 0.05 mm (service limit) Valves and Springs 2005-2007 Yamaha YP400 Valves and Springs Specifications Table
Attribute Value Intake valve clearance 0.15 mm - 0.20 mm Intake valve stem diameter 4.975 mm - 4.990 mm 4.945 mm (service limit) Intake valve stem to guide clearance 0.010 mm - 0.037 mm 0.080 mm (service limit) Intake valve head diameter 30.9 mm - 31.1 mm Intake valve seat width 1.0 mm - 1.2 mm Exhaust valve clearance 0.25 mm - 0.30 mm Exhaust valve stem diameter 4.960 mm - 4.975 mm Exhaust valve stem to guide clearance 0.025 mm - 0.052 mm Exhaust valve head diameter 27.9 mm - 28.1 mm Exhaust valve seat width 1.0 mm - 1.2 mm Camshaft and Timing 2005-2007 Yamaha YP400 Camshaft and Timing Specifications Table
Attribute Value Camshaft run-out 0.03 mm (service limit) Cylinder and Piston 2005-2007 Yamaha YP400 Cylinder and Piston Specifications Table
Attribute Value Cylinder taper 0.05 mm (service limit) Piston pin diameter 19.991 mm - 20.000 mm 19.971 mm (service limit) Piston pin bore diameter 20.004 mm - 20.015 mm 20.045 mm (service limit) Top piston ring end gaps 0.20 mm - 0.35 mm 0.50 mm (service limit) Second piston ring end gaps 0.40 mm - 0.55 mm 0.80 mm (service limit) Piston ring oil end gaps 0.10 mm - 0.40 mm Clutch and Primary Drive 2005-2007 Yamaha YP400 Clutch and Primary Drive Specifications Table
Attribute Value Primary Drive type Helical gear Reduction ratio 2.214 : 1 (31 / 14) Clutch type Dry, centrifugal automatic Clutch operating system Centrifugal automatic type Transmission 2005-2007 Yamaha YP400 Transmission Specifications Table
Attribute Value Type V- belt, automatic Lubrication 2005-2007 Yamaha YP400 Lubrication Specifications Table
Attribute Value System type Wet sump Oil capacity 1.50 litres (wet fill, excludes filter) Recommended oil approval rating API service SE, SF, SG type or higher Oil pump type Trochoid Cooling System Specifications 2005-2007 Yamaha YP400 Cooling System Specifications Specifications Table
Attribute Value System type Liquid-cooled Fuel System 2005-2007 Yamaha YP400 Fuel System Specifications Table
Attribute Value Fuel type Unleaded gasoline only (USA) Fuel tank capacity 14 litres Fuel pump type Electrical, 5RU AISAN Fuel pressure 35.6 psi (nominal) Fuel Injection System 2005-2007 Yamaha YP400 Fuel Injection System Specifications Table
Attribute Value Type Electric Idle speed 1,300 rpm - 1,500 rpm Injector type AISAN 1100-87C00-A Ignition System 2005-2007 Yamaha YP400 Ignition System Specifications Table
Attribute Value Type Transistorized coil ignition (digital) Ignition timing 1,400 rpm @ 5 ° BTDC at idle Spark plug type NGK CR7E Spark plug gap 0.7 mm - 0.8 mm Front Suspension and Steering 2005-2007 Yamaha YP400 Front Suspension and Steering Specifications Table
Attribute Value Type Telescopic fork, Coil spring / Oil damper Front axel travel 120 mm Recommended front fork oil grade Yamaha fork oil 10 WT Oil volume 0.298 ml (left fork dry fill) 0.298 ml (right fork dry fill) Spring free length 316.7 mm 310.4 mm (service limit) Rear Suspension 2005-2007 Yamaha YP400 Rear Suspension Specifications Table
Attribute Value Type Unit swing, Coil spring / Oil damper Rear axel travel 130 mm Rear spring free length 306.6 mm Front Brake 2005-2007 Yamaha YP400 Front Brake Specifications Table
Attribute Value Front brake type Single-disc brake Front disc diameter 267 mm Front disc thickness 5 mm 4.5 mm (service limit) Recommended front brake fluid DOT 4 Front master cylinder diameter 14.0 mm (inner) Front caliper cylinder A diameter 30.16 mm - 33.34 mm (inner) Rear Brake 2005-2007 Yamaha YP400 Rear Brake Specifications Table
Attribute Value Rear brake type Single-disc brake Rear disc diameter 267 mm Rear disc thickness 5 mm 4.5 mm (service limit) Recommended rear brake fluid DOT 4 Rear master cylinder diameter 14.0 mm (inner) Rear caliper cylinder A diameter 38.1 mm (inner) Wheels and Tyres 2005-2007 Yamaha YP400 Wheels and Tyres Specifications Table
Attribute Value Front wheel size 14 M/C X MT3.00 inch Front tyre size 120/80 - 14 M/C 58S - tubeless Front tyre pressure 29 psi (cold) Recommended front tyre IRC MB 67 or Dunlop D305FL Rear wheel size 13 M/C X MT4.00 inch Rear tyre size 150/70 - 13 M/C 64S Rear tyre pressure 36 psi (cold) Recommended rear tyre IRC MB 67 or Dunlop D305L Electrical Charging 2005-2007 Yamaha YP400 Electrical Charging Specifications Table
Attribute Value Battery type GT9B-4 Battery voltage rating 12 volts DC Battery capacity 8 ampere hour (Ah) Electrical Equipment 2005-2007 Yamaha YP400 Electrical Equipment Specifications Table
Attribute Value Headlight 12V 60W/55W high/low beam Recommended headlight Halogen bulb Tail / stop light LED Front turn signal light 12V 21W/5W x 2 Rear turn signal light 12V 21W x 2 Turn signal indicator 12V 1.4W Main fuse rating 40 amps (A)
Learn more about motorcycles...
As we grow our data we'll be creating neat little tools to collate and display the data you want to see, how you want to see it. There may even be an opportunity to compare different bikes against any of our detailed specifications. Hint, hint.
Want to learn more about
Yamaha motorcycles? Don't miss our Yamaha motorcycle library.
Are you in search of another bike manufacturer? Our library includes data from a growing range of other
motorcycle manufacturers too.
If you think we’re missing something, or you've got valuable expertise working on the 2005-2007 Yamaha YP400, please give us a
shout. We're ambitious in our plans to share knowledge about everything motorcycle. So, if you've something to contribute, please don't hesitate to reach out to us here.