Villiers MARK 12D, Operating Instructions And Spare Parts List

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-
..
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Bore
Stroke
Capacity
Engine Sprocket
Clutch Sprocket
GENERAL DATA.
Mk. 120.
•
50mm.
62mm
122cc.=7.44 cu. ms.
18 Teeth-%" Pitch.
5 1
"
-"
"
8
"
Primary Drive Ratio
-
2.83-1 .
Gearbox Ratios, Standard:
3
Speed
4
Speed
1-1' 1.34-1' 2.55-1 .
Mk. SE.
59mm.
72mm.
197cc.=l l .71 cu. ms.
23 Teeth-%" Pitch.
5 1
"
2.21-1 .
3"
8
"
1-1, 1 .34-1' 2.55-1.
1 - 1 , 1.35--l. 1 .8-1,
2.93-1.
Final Drive Sprocket -
Standard.
1 5 Teeth-!" Pitch. 17 Teeth--r' Pitch .
For Renold Cha in No. 1 10044 .
Final Chain Line
-
2-ft ins.
Bxhaust Pipe Dia.
It ins.
·
Carburetter Villiers Type S. l9.
Carburetter Needle
·
No. 3!--2.015" out.
Carburetter Throttle
·
No. 2t.
Sparking Plug
·
Plug Gap
·
Spark Timing
·
Contact Breaker
- Lodge H l 4 .
.018" /. 025".
352
ins. Before T.D.C.
· -
Points Gap . 0 1 2"/. 01 5".
2-ft ins .
Villiers Type S.24 or
S . 25 .
No. 3i- 1 . 95" out.
No. 3.
Lodge HH 1 4 .
.018" /.025".
ins. Before 1 . D.C.
Lubrication, Engine
·
Petroil Mixture. One part Castrol Two-stroke Self­
Mixing Oil to 1 6 parts petrol, OR one part Castrol
'XL ' Oil ( SAE 30) to 20 parts petrol.
·
Lubrication, Gearbox
and Chaincase -
Castrol "D " Oil ( SAE 1 40) Filled to Level Plugs
provided.
2