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111. INSPECTION AND ADJUSTMENT
17
13. FUEL FILTER
l. PIace the fuel cock Iever in the "OFF" poosition; disconnect
the fuel tubes. Take off the fuel tank.
Loosen the fuel cock fixìng nut and then remove the fuel
cock and fuel fllter from the fuel tank.
3. Check the gasket to see if it is darnaged. Replace with a
new alle, if found to be damaged too bad1y beyond use.
4. Wash the fuel fllter in solvent and dry with compressed air.
Any slight darnage cannot be tolerated here. Aiso replace
the filter with a new oneif found to be clogged.
5. lnstall the fuel filter to the fuel cock with the fixing fiuto
Do not forget to install the gasket into the groove of the
fixing fiuto
6. lnstall the fuel cock to the fuel tank with the flxing fiuto
7. lnstall the fuel tank in pIace on the frame; connect tubes and
secure with the clips.
8. FilI the tank with fuel. With the fuel cock lever in the "aN"
position, check far any leakage past the tube joints or
connections.
14. SPARK PLUG
STANDARD PLUG NGKB8ES
1. Remove the spark plug cap from the spark plug. Unscrew the
plug, using spark plug wrench, and remove the spark plug
from the cylinder head.
2. Check the spark plug far deposits, electrode erosion and
damaged gasket. A spark plug with burned electrodes,
or darnaged gasket should be replaced with a new one.
Fouled spark plug can be cleaned in spark plug cleaner or
with a wire brush.
3. Using a feeler gauge, adjust the gap to the specification.
Specified plug gap: O.7-0.8mm (O.O28-0.032-in.)
To adjust, bend the side electrode only.
4. Clean the plug seat in the cylinder head. Screw the plug into
the thread hole in the head in two steps; first, finger-tight,
and then use a spark plug wrench to tighten the plug an
additional
1/2 to 3/4 turo or until the sealing gasket is
compressed.
Fig. 3-42
(l) Spark plug gap (3) Side electrode
(2) Gasket
15. DRIVEN
CHAIN
Chain tension
l. Raise the rear wheel off the ground with the main stando
Shift the transmission into neutral.
2. Check the tension of the drive chain. This can be made by
applying a thumb pressure on a point midway between the
sprockets and measure the slack.
Specified slack: 20mm (3/4 in.)
Fig. 3-43
(1) Olive chain slack
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