1999 Aprilia on 2040-motos

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Engine, gearbox and drive stuff
Displacement: 49.7 cc
Engine type: Single cylinder, two-stroke, liquid cooled
Bore and stroke: 40.3mm x 39mm
Compression ratio: 11.5:1
Lubrication: Fully synthetic 2 stroke oil
Clutch: Multi plate wet clutch
Gearbox: Six speed
Gearbox oil: Synthetic 75w90 gear oil
Final drive: Chain drive

Carb and fuel 
Fuel system: Carburettor (Dell Orto carb)
Tank capacity: 13 litres (with a 2.6 litre reserve)
Fuel type: Unleaded petrol
Recommended 2 stroke: Fully synthetic 2T oil – Note: Use cheaper/lesser spec 2T oils at your own peril with these bikes!

Electric 
Ignition type: Electric CDI
Starter: Electric start
Electrical system voltage: 12 volts
Generator: 12V – 105W
Battery: Aprilia RS50 battery – YB4L-B / CB4L-B
1999-2000 (Minarelli engine) Spark plug: NGK B8ES
2001-2005 Spark plug: Aprilia RS50 spark plug – NGK BR9ES

Shocks, brakes and wheels
Front tyre size: 90/80-17
Rear tyre size: 110/80-17
Front tyre pressure: 26psi
Rear tyre pressure: 29psi
Front brake: 280mm Hydraulic disc brake (EBC part no: MD672LS)
Front brake pad: EBC FA194
Rear brake: 220mm Hydraulic disc brake (EBC part no: MD664)
Rear brake pad: EBC FA060
Front wheel type: 5 Spoke alloy wheel
Rear wheel type: 5 Spoke alloy wheel
Front Suspension: 35mm diameter stanchion telescopic forks
Rear Suspension: Single monoshock 

Frame
Frame type: Die-cast aluminium (2 piece frame bolted together)
Frame number location: Right side of the headstock (right as your sitting on the bike) also has a frame number plate on the left side of the frame

Weights
Length: 1,920 mm
Width (at the handlebars): 675 mm
Height (at the front fairing): 1,155 mm
Wheelbase: 1,280 mm
Seat height: 810 mm
Dry weight: 89 kg

Yrs Nsr Honda Yamaha