- 20 -
Improper fuel used
Use fuel with correct mixing ratio.
Never use gasoline of poor quality.
Spark plug defective (burnt)
Replace.
As cooling fins clogged, air
Clean fins.
does not pass well
Excessive deposits in
Disassemble and remove carbon.
combustion chamber
Plug damaged or fouled
Replace or clean.
Combustion poor due to
Check wiring.
defective wiring
High-speed needle
Readjust.
setting incorrect
Carburetor overflow
Refer to Table 1.
Air cleaner clogged
Clean as necessary.
Compression insufficient
Disassemble, check and replace
(piston ring stuck or worn
if necessary.
out)
Cylinder chromium plating
Replace cylinder.
peeled or worn out
Exhaust port clogged with
Clean as necessary.
carbon
Throttle is not fully open
Readjust.
Improper setting
Set properly.
Height of cutter uneven
Correct properly.
Overloaded
Adjust load.
Clutch shoe worn out
Replace.
Table 2
•
Inspect and adjust every part of the unit.
-
Completely clean every part, and repair, if
necessary.
-
Apply thin coating of oil on metal parts to
prevent rust.
-
Remove the cutter head, apply sufficient oil
coating and wrap up in plastic.
LONG TERM STORAGE
•
Drain fuel tank, pull starter handle slowly a few
times to drain fuel from carburetor.
•
Pour a small amount of clean motor oil into spark
plug hole, pull starter handle and then crank the
engine until TOP DEAD CENTER.
•
Store in a dry area, free from dust.
Engine overheated
Carburetor defective
Other troubles
Firing function defective
Blade does not cut well
Blade does not rotate
Machine does not trim properly
Engine speed insufficient
Eengine runs normally
