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James Captain K7. 200cc. 1954-1959

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Frame numbering 1954.  K7-xxx
1955.  55K7-xxx.   1956.  56K7-xxx.  1957.  57K7-xxx
1958.  AK7-xxx.   1959.  BK7-xxx
   
Engine 1954 - 57 Villiers Mk 8E. Capacity 197cc.  59mm x 72mm
1958 - 59 Villiers Mk 10E. Capacity 197cc. 59mm x 72mm
Gears Three or four speed on 8E.
Three speed only on 10E. (Owners could fit a 4 speed box to the 10E.)
Frame Single downtube with swinging-arm rear.
Forks & hubs Telescopic.  Early forks were undamped.  Later forks were oil-damped.
Half-width hubs for 1954.  Full-width hubs 1955 on.
Fork oil capacity 1954: pint per leg .  (SAE 20 ?)
1955 on: 55cc per leg.  SAE 20
Tyres 1954 - 55:   3.00" x 19" front & rear.
1956:         3.00" x 18" front & rear.
1957 - 59:   3.00" x 18" front.  3.25" x 18" rear.
Wheel rims All years: Dunlop WM1 36 hole
Ignition timing 5/32" before top dead centre.
Points gap 0.012" - 0.015"
Plug gap 0.018" - 0.025"
Plug type Original spec. Lodge HH14.  14mm.  Short reach.
Carburettor 1954 - 55: Villiers  Type S.24
1956 - 57: Villiers  Type S.25
1958 - 59: Villiers  Type S.25/2
 
Throttle No. 3  (All years)
Needle No. 3   (All years)
Needle setting 1.95" out.   (All years)
Tank capacity 2 gallons approximately.  Use of unleaded fuel will cause no problems
Petroil mixture 20:1 as originally specified. Can be safely reduced to 24:1 with modern oils.
Gearbox capacity Remove oil level screw on side of engine casing and oil filler screw on top of casing.  Fill oil through the filler opening until oil begins to run out through the level plug hole. The correct level of oil is then assured.  Check it regularly.  Castrol "D"  SAE 140
Chaincase capacity Fill to level plug.
Chains Primary chain:  66 pitches.  ⅜" x " x 0.225"
Final drive chain:  " x 0.335" x 0.205" wide.
1954 - 55.  121 links. 
1956         122 links
1958         126links
Sprockets Engine: (crankshaft) 8E. 23 teeth.  10E. 20 teeth
Gearbox (final drive) 8E. 17 teeth    10E. 17 teeth
Brakes 5" front & rear
Bulbs Headlamp: 6v - 24 / 24w S.B.C.
(1957 - 24 / 24w pre-focus bulb)  (1958 & 59 - 30 / 24w pre-focus)
Stop & tail lamp: 6v - 18 / 3w.
Parking lamp: 6v - 3w M.B.C.
Speedo: 6v - 0.15amp M.B.C.  (1959 - 6v - 5.3amp)
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