Перечень технических характеристик Enfield Bullet 350/500 CC

  Bullet 350CC Bullet 500CC
Engine: single cylinder 4 stroke with overrhead valve
Cubiс capacity 346 сс 499 cc
Stroke 90 mm
Bore-nominal 70 mm 84 mm
Actual 69.875 mm 83.96 / 83.97 mm
Compression ratio 7.25 : 1 6.5 : 1
Compression pressure 110 ± PSI (recommended)
Engine output 18 BHP / 5625 RPM 22 BHP / 5400 RPM
Torque 2.74 Kgm / 2875 RPM 3.5 Kgm / 3000 RPM
 
Piston and piston rings:
  Ring clearance in grooves:
Plain (2) .001 / .003''
Scrapper .002 / .004''
Ring end gap in bore .015 / .020''
Maximum ring gap permissible 0.030'' 0.039''
Gudgeon pin diameter .7498 / .7500''
Crank pin diameter 1.24875 / 1.249''
Connecting rod small end diameter .7505 / .7507''
 
Crankshaft:
Driving side ball bearing 25 x 62 x17 mm (6305)
Roller bearing 25 x 62 x17 mm (NU 305 or N 305)
Timing side roller bearing 25 x 62 x15 mm (NU 205 or N 205R)
Cam lift .3125 in
Valve lift .3125 in
 
Valve timing with .012'' clearance:
Exhaust opens 75º BTDC
Exhaust closes 35º ATDC
Inlet opens 30º BTDS
Inlet closes 60º ATDS
Rocker bearing inside diameter .625 / .626''
Rocker spindle diameter .6235 / .624''
Inlet valve stem diameter .3425 / .3430''
Exhaust valve stem diameter .3405 / .3410
Valve guide internal diameter .3437 / .3447''
Valve guide external diameter .6270 / .6275''
Tappet guide internal diameter .3752 / .3760''
Tappet guide external diameter .7505 / .7510''
 
Lubrication Dry sump, Oil tank integral with crank case
 
Clutch: Wet multiplate, Oil immersed
Engine sproket 25 teeth
Clutch sprocket 56 teeth
Primary drive chain 3 / 8'' pitch Duplex chain
 
Gear Box:
Overall gear ratios 5.32, 7.26, 9.80, & 14.80 5.01, 6.83 , 9.22 , & 13.93
Mainshaft ball bearings small - 6303, large - 6206
Final drive sproket 16 teeth 17 teeth
Rear drive chain 5 / 8'' pitch chain
Brake drum sproket 38 teeth
 
Carburettor:
Model Mikcarb-VM-24 Mikcarb-VM-28
Main jet 90 110
Pilot jet 25 25
 
Contact Breaker (Coil ignition):
Points gap 0.35 to 0.4 mm
Timing before T.D.C. 0.8 mm
Spark plug 14 mm B7HS (NGK) BR8ES (NGK)
Spark plug gap 0.46 - 0.5 mm
Condenser (Capacitor) 0.18 - 0.25 M.F.D.
 
Suspension:
Front Telescopic, Hydraulic damping
Stroke 155 mm
Rear Pivoted fork with shock absorbers
Wheel rim type WM 2 - 19
Tyre size 3.25 x 19 (Front), 3.50 x 19 (Rear)
Wheel bearings 17 x 40 x 12 mm (6203 or 6203 ZZ)
Brakes Mechanical, Internally expanding shoe type
Front Single Leading shoe 178 mm x 38 mm Twin Leading shoe
Rear 153 mm x 25 mm Single Leading shoe
 
Fuel tank
Fuel tank capacity 14.5 litres
Reserve capacity 1.25 litres
 
Oil capacity and grade:
Oil tank 2.25 litres, SAE-20W50
Fork 200 ml on each leg. Hydraulic oil or SAE-10W30
Clutch 420 ml SAE-20W40
Gear box 700 grams of veedol '00' grease (for topping up use SAE-20W50)
 
Dimensions:
Dry weigth 163 Kg 168 Kg
Max pay load 172 Kg
Ground clearance 14 cm
Overall length 212 cm
Overall width 75 cm
Saddle height 85 cm
Wheel base 137 cm
 
Electrical system 12 V DC

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