WycoTool WBP50 Backpack - Manual (Page 14)

Concrete Vibrator, Backpack Model WBP50
Page 14 March 2014
6 . After the spark plug is seated, tighten with a 5/8" spark
plug wrench to compress the sealing washer .
7 . When installing a new spark plug, tighten 1/2 turn after
the spark plug seats to compress the washer .
8 . When reinstalling the original spark plug, tighten 1/8
to 1/4 turn after the spark plug seats to compress
the washer .
OTEE: N A loose spark plug can overheat and damage the
engine . Overtightening the spark plug can damage
the threads in the cylinder head .
9 . Attach the spark plug cap to the spark plug .
Spark Arrester (Optional Equipment)
Your engine is not factory-equipped with a spark arrester . In
some areas, it is illegal to operate an engine without a spark
arrester . Check local laws and regulations . A spark arrester is
available from authorized Honda servicing dealers .
The spark arrester must be serviced every 100 hours to keep
it functioning as designed .
If the engine has been running, the muffler will be hot . Allow
it to cool before servicing the spark arrester .
Spark Arrester Removal
1 . Remove the three 5 mm bolts from the muffler protector
and remove the muffler protector .
2 . Remove the special screw from the spark arrester, and
remove the spark arrester from the muffler .
Spark Arrester Cleaning and Inspection
1 . Use a brush to remove carbon deposits from the spark
arrester screen . Be careful not to damage the screen .
Replace the spark arrester if it has breaks or holes .
2 . Install the spark arrester and muffler protector in the
reverse order of disassembly .
HELPFUL TIPS AND SUGGESTIONS
Storing Your Engine
Engine Storage Preparation
Proper storage preparation is essential for keeping your
engine trouble-free and looking good . The following steps
will help to keep rust and corrosion from impairing your
engine’s function and appearance, and will make the engine
easier to start when you use it again .
Engine Cleaning
If the engine has been running, allow it to cool for at least
half an hour before cleaning . Clean all exterior surfaces,
touch up any damaged paint, and coat other areas that may
rust with a light film of oil .
OTEE: N Using a garden hose or pressure washing equipment
can force water into the air cleaner or muffler
opening . Water in the air cleaner will soak the air
filter, and water that passes through the air filter or
muffler can enter the cylinder, causing damage .
Engine Fuel
Gasoline will oxidize and deteriorate in storage . Deteriorated
gasoline will cause hard starting, and it leaves gum deposits
that clog the fuel system . If the gasoline in your engine
deteriorates during storage, you may need to have the
carburetor and other fuel system components serviced
or replaced .
The length of time that gasoline can be left in your fuel
tank and carburetor without causing functional problems
will vary with such factors as gasoline blend, your storage
temperatures, and whether the fuel tank is partially or
completely filled . The air in a partially filled fuel tank
promotes fuel deterioration . Very warm storage temperatures
accelerate fuel deterioration . Fuel deterioration problems
may occur within a few months, or even less if the gasoline
was not fresh when you filled the fuel tank .
Fuel system damage or engine performance problems
resulting from neglected storage preparation are not covered
under the Distributor ’s Limited Warranty .
You can extend fuel storage life by adding a gasoline
stabilizer that is formulated for that purpose, or you can
avoid fuel deterioration problems by draining the fuel tank
and carburetor .
Adding a Gasoline Stabilizer to Extend Fuel Storage Life
When adding a gasoline stabilizer, fill the fuel tank with fresh
gasoline . If only partially filled, air in the tank will promote
fuel deterioration during storage . If you keep a container
of gasoline for refueling, be sure that it contains only
fresh gasoline .
1 . Add gasoline stabilizer following the
manufacturer’s instructions .