Routine maintenance operations
Release 00 2002-09
chap. 2
2-10
Atlantic 500
• Use a strong blast of compressed air to prevent
the residue removed from entering the engine.
The spark plug must be replaced if it shows
cracked insulation, corroded electrodes or exces-
sive buildup.
• Use a gauge to measure the spark plug gap. It
should be 0.027-0.031 in (0.7-0.8 mm); adjust if
necessary, carefully bending the earth electrode.
• Make sure that the gasket is in good condition.
With the gasket in place, screw in the spark plug
by hand to avoid damaging the thread.
• Tighten using the wrench provided in the tool kit,
turning each spark plug 1/2 turn to compress the
gasket.
Tightening torque for spark plug:
12-14 Nm (1.2-1.4 kgm).
The spark plug must be firmly tightened, other-
wise the engine might overheat and suffer serious
damage.
Use only the recommended type of spark plugs,
see (TECHNICAL SPECIFICATIONS); otherwise
you may compromise the performance and life-
span of the engine.
• Insert the spark plug cap correctly, so that it does
not vibrate off.
• Remount the left inspection cover, see (REMOV-
ING THE RIGHT AND LEFT INSPECTION COV-
ERS).
CAUTION
0,7-0,8 mm
(0.027-0.031 in)
Standard CHAMPION RG6YC
SPARK -
Alternatively
NGK - CR7EKB
PLUG
Spark plug gap
1
2
3
4
5
ADJUSTING THE THROTTLE CONTROL
Carefully read MAINTENANCE.
The play of the throttle adjuster must be 0.078 - 0.118
in (2 - 3 mm), measured at the edge of the grip.
If not, proceed as follows:
• Place the vehicle on the center stand.
• Pull back the rubber boot (1).
• Loosen the lock nut (2).
• Rotate the adjuster (3) so as to restore the proper
play.
• After completing the adjustment, tighten the lock
nut (2) and check the clearance again.
• Replace the rubber boot (1).
• The cable (4) opens the gas.
• The cable (5) closes the gas.
After completing the adjustment, make sure that
turning the handlebar does not alter the engine
idle speed, and that when the throttle is released it
returns gently and automatically to its original
position.
WARNING
0.027 - 0.031 in
(0.7 - 0.8 mm)
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