OREC RM983 - Inspection and Adjustment of Spark Plugs; Inspection of Fuel Hose

5. 点検・整備・調整
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Reference；
1) If the paper element is very dirty, replace it with a new one, or wash it with soap (wash),
wash it with water, and dry it well. Do not pull or squeeze the foam element during
cleaning. The element breaks.
2) Be careful not to damage the filter paper when hitting the paper element.
3) When drying, applying hot air may damage the adhesive part of the paper element. Dry
with low warm air or let it air dry.
4) When using in a work environment with a lot of dust and dirt, please try to clean it
frequently (half of the above replacement time is a guide).
5.2.2 Inspection and adjustment of spark plugs
① Remove the spark plug with a plug wrench, remove
carbon from the electrode part A with a wire brush,
and wipe it off if it is damp.
② If the central pottery part is cracked or the electrode
part is worn out, replace the spark plug with a new
one.
③ Adjust the electrode gap B of the spark plug to 0.7 to 0.8 mm.
Reference；
1) The installed engine is a V-type 2-cylinder. Check and replace two plugs at the same time,
and do not clean or replace only one side. It may cause engine malfunction.
2) When tightening, first lightly screw in by hand (until the gasket hits the seat surface), and
then use a plug wrench. If you tighten it from the beginning with a plug wrench, the
threads may be crushed.
Do not test the spark plug for ignition near the plug hole in the cylinder.
It is dangerous to catch fire.
5.2.3 Inspection of fuel hose
This product uses gasoline as fuel, and it is extremely dangerous because there is a risk of
ignition, such as fuel leaks during work, as well as cigarettes and bonfires in the vicinity of
this product.