Nakayama NS4010 Mode D'emploi page 8

EN
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.
After every 100 hours running, the fuel tank and filter strainer must be cleaned. Open the fuel tank cover, take out the filter
strainer and clean it with brush. Take off the fuel tank, clean inside of the tank and remove the dirt and water attached on the
internal surface of the tank. Reassemble the tank and fit the strainer, then fill in new fuel oil till the oil level reaching the red
basic line.
After running every two years, check the ageing condition of the oil tube. If there is any ageing, hardening or crack, it must be
replaced. Tighten the replaced oil tube joints and check its leakage.
Maintenance before stopping use for long time
For some reasons, if the engine is not used for a long time, it must be maintained one time before is stored: A Take off the
fuel tank, drain out all fuel and clean the dirt and water inside of the tank. Open th fuel cock, unscrew the drain plug at the
bottom of carburettor, drain out fuel in carburettor thoroughly, and then, screw the drain plug to original position. B Unscrew
the drain plug at the bottom of the crankcase and drain out the lubrication oil in crankcase thoroughly, then tighten the drain
plug. C Clean the outer surface of the gasoline engine with clean cotton, remove the dirt and dust etc., then store the gaso-
line engine in a clean and dry place where is in good ventilation condition. D Turn crankshaft and make the gasoline piston
stopping at upper limit position in order to avoid air getting in. Disposing wasted oil: Please use a special container to collect
wasted oil from gasoline engine and send to local wasted oil station for disposing. Don't pour everywhere.
8
Figure 9-1
Figure 9-2
WWW.NIKOLAOUTOOLS.COM
0.7-0.8mm
(1) remove the spark plug
(2) adjust spark plug gap
(1) Oil drain plug
(2) Fill oil hole
(3) Specified oil level