Page 67 - NSU Supermax Owner's Manual

Adjusting the Valve Clearance Periodical Lubrication and Inspection
The clearance between the spherical end of the adjust­ Every conscientious rider will keep his machine in "a
able tappet and the valve stem should amount to r~adworthy condition, ~n~ so will pay particular atten­
tion to the proper functioning of the brakes. We consider
0.002" in the case of the inlet valve it advisable that the operation of the brakes be checked
0.004" in the case of the exhaust valve before every journey. See page 43/44.
Use a feeler gauge to check this clearance.. Adiust~ents
should be made with the engine cold and with the piston Every four weeks check the battery and have it charged
at TDC on the firing stroke. The pinch bolt o~ the rocker if necessary.
arm, which must be slackened off when making the ad­ Every 600 miles check the chain tension and adjust if
justment, must be well tiQhtened ul? again to prevent necessary.
the adjustable tappet working loose In service.
Every 1,200 miles Check valve clearance, adjust if neces­
sary, see page 64. Check the clutch adjust­
Slacken locking screw ment, make certain that all important
nuts and bolts are tight. The principal
ones are: the cylinder and cylinder head
bolts (only with engine cold); the nuts on
the wheel spindles and the pinch bofts
on the front-fork swinging orms; the
handlebar, silencer and chain guard
mountings and the electric cable connec­
tions, and the sidecar connections if one
is fitted.
Adjust clearance Every 2,400 miles check the sparking plug gap (see page
59). Clean the plug if necessary. Check
the. play in the steering head bearing and
adjust It for free movement, but without
j perceptible play.
(When the machine is on the stand and the steer­
ing damper is completely slackened, the front
forks after.. being put practically into their
central position must return fo the left or right
lock).
Tighten locking screw Every 4,000 miles clean the generator, check the contact
breaker gap (see page 57). Check the
electric cables and their connections.
Tighten the terminal screws.
About every 6,000 to 10,000 miles renew the sparking plug.
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