Nakayama 032861, Manual

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5
A. Adjust the valve gap: intake valve gap: 0.10-0.15mm; exhaust valve gap: 0.15 0.20mm. a. Grasp valve gap adjusting nut and
release valve lock nut. b. Turn valve gap adjusting nut to specified gap. C. Grasp valve gap adjusting nut and screw up valve
lock nut. Torque: 10N.m (1.0kg.m) d. After screwing up valve lock bolt, recheck valve gap.
B Adjust the governor system (big and small tension spring, throttle support, and throttle governor lever) a. Remove the fuel
tank. b. Screw off lock nut and move the throttle support to completely open the valve.
c. After moving the throttle support, opening valve and turning the throttle governor lever in same direction to farther-
most position where it can reach, screw up lock nut. d. Check if throttle support and valve move smoothly. e. Install the
fuel tank.
Maintenance
Everyday maintenance: A Check the filter element of the air cleaner, remove the dirt and foreign materials to keep the ele-
ment clean. B Check the fastening nuts whether they are tightened. C Check the lubrication Oil level whether it is kept within
specified range. After the engine running about 25 hours, the air cleaner should be cleaned. After the engine running about
50 hours, the spark plug must be checked, remove its carbon deposits, and adjust its gap to 0.7-0.8mm.
Check radiating fin and remove the dirt among them. Replace the lubrication oil, unscrew the drain plug, tilt the engine
slightly and let the lubrication oil drain out, add the kerosene to clean and then drain it out, finally, tighten the drain plug
and fill in the new lubrication oil to the specified oil level. CAUTION: Add correct oil brand, the filling volume for 160F
168FA/B is 0.61,,for 173F, 177F, 182F and I88F is 1.1L.
Lock Nut
Figure 7-11
Throttle Governor Lever
Throttle Support
Throttle Valve
Governor Screw
Notes of unpacking
Carefully make the gasoline engine in normal condition
when unpacking. Carefully check whether they are com-
plete according to the packing list. Our company provides
gasoline engine with fine quality, environment, perfor-
mances and cost ratio high.
If you have any question in the operation, please consult
with local dealer or directly telephone to our after sale
service centre.
Don’t disassemble the gasoline engine by yourself within
warrant period! (If disassembling by user, can’t join war-
rant certification).
(1) remove the spark plug
(2) adjust spark plug gap1
Figure 9-1
(1) Oil drain plug
(2) Fill oil hole
(3) Specified oil level
Figure 9-2
0.7-0.8mm