A.J.S. 16 Instruction Book - Twist Grip Adjustment
TWIST GRIP ADJUSTMENT
(Continued)
The complete twist grip can be moved on the handlebar by slackening the two screws
that clamp together the two halves of the body. The most desirable position is that in
which the throttle cable makes the cleanest and most straight path to the under-side
of the petrol tank.
AIR FILTER
In locations, such as the United Kingdom, where the roads and atmosphere are particu-
larly free from dust, it is not considered necessary to have an air filter fitted to the
carburetter, but in countries where the atmosphere contains a very heavy dust content,
an air filter is essential in order to prevent abrasive wear.
The filter available (optional extra) for the conditions mentioned above is of the "Oil
Wetted" type, and this requires periodical servicing.
When servicing the air filter, withdraw the filter element. Thoroughly wash this in
petrol, paraffin or other suitable solvent and allow to dry. Then re-oil, using one of the
light oils (SAE-20), enumerated in the final table on page 12, and allow to drain before
replacing in the filter case. Clean at intervals of 2,500 to 5,000 miles according to road
conditions, and renew the element every 10,000 miles.
TO REMOVE T H E AIR FILTER ELEMENT
Remove top pivot bolt.
Remove bottom nut on filter.
Remove filter with hose.
The filter compartment can now be separated for access to the element.
CARBURETTER T U N I N G I N F O R M A T I O N
Poor idling may be due t o :
Air leaks. Either at junction of carburetter and inlet manifold, or by reason of
badly worn inlet valve stems or guides.
Faulty engine valve seatings.
Sparking plug faulty, or its points set too closely.
Ignition advanced too much.
Contact breaker points dirty, pitted, loose, or set too closely.
High-tension wire defective.
Pilot jet not operating correctly. Partially choked or incorrect air supply.
Rockers adjusted too closely.
Heavy petrol consumption may be due t o :
Late ignition setting.
Bad air leaks. Probably at carburetter or manifold joints.
Weakened valve springs.
Leaky float. (Causing flooding.)
Taper needle extension insufficient.
Poor compression, due to worn piston rings or defective valve seatings. (Test
compression with throttle wide open.)
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