ROYAL ENFIELD Thunderbird

Engine
Service Data
Type 4-stroke, air cooled single cylinder
Valvetrain OHV, 2 valves/cyl
Displacement 346cc
Bore x Stroke 70.0 x 90.0mm
Comp Ratio 8.5+-0.3:1
Carburettor Mikuni CV carb
Max Power 18bhp@5500rpm
Max Torque 26.97Nm@5000rpm
Power to Weight 103 bhp/ton
Ignition Electronic CDI
Idle Speed 900 - 1000rpm
Air Filteration Paper
Oil Filteration Felt
Lubrication Forced
Oil Pump type Gear pump
Fuel Unleaded petrol
Starting Kickstart
First Inspection 500 km
Service Interval 3000 kms
Engine Oil Grade SAE 20W/40 API-SF
Engine Oil Capacity 2.25 litre
Oil Filter Change 6000 kms
Oil Change interval 6000 kms
Spark Plug Mico W5DC
Spark Plug gap 0.46-0.5mm
Cyl Compression 8.5:1
Valve Clearances (cold)
Intake 0.08mm
Exhaust 0.10mm
Tyre Pressure
Front (Solo/Pillion) 1.27/1.41kgf/cm2
Rear (Solo/Pillion) 2.0/2.11kgf/cm2
Warranty 12000kms or 12months whichever is earlier


General Data Transmission