Troubleshooting; Maintenance Period - K-JAPAN KJRH300 Manual Del Propietário

If the engine malfunctions, carefully examine the symptoms and the operating conditions, and use the table below as
a guide to troubleshooting.
Symptom
Insufficient
compression
No fuel to
combustion
chamber
Engine won't start
or output is low
Spark plug fouled
by fuel
No spark or
weak spark
Low output Engine overheats
M : Service should be performed by an authorized Maruyama dealer.

MAINTENANCE PERIOD

Accidental engine starting can cause injury. Always remove the spark plug cap before
servicing the engine to prevent accidental starting.
Maintenence
Check and replenish fuel
Check for fuel leakage
Check bolts, nuts and screws for looseness and loss
Check throttle lever operation
Check start/stop switch operation
Clean fuel filter
＊
Clean air cleaner element
Tighten boits, nuts and screws
Clean spark plug and adjust electrode gap
Remove dust and dirt from cylinder fins
M Remove carbon deposits on piston head and inside cylinder
Remove carbon deposits in the exhaust pipe of muffier
Clean spark arrester screen
M Check the sliding portion of crankshaft, connecting rod etc.
Fuel tube
NOTE
◦ The service intervals indicated are to be used as a guide.
◦  S ervise with an Asterisk ( ＊ ) should be performed more frequently depending on the severity of operating condi-
tion.
◦ M : Service should be performed by an authorized Maruyama dealer.

TROUBLESHOOTING

Probable couse
Faulty Piston, Cylinder and Piston ring
Loose spark plug
Loose cylinder bolts
No fuel in fuel tank
Blocked fuel filter or tube
Blocked air vent in tank cap
Faulty carburetor
Over-rich fuel/air mixture
Clogged air cleaner
Faulty carburetor
Incorrect grade/type of fuel
Water in fuel
Faulty spark plug
Faulty ignition coil
Engine switch left in " ○ " (Stop)
position
Clogged air cleaner
Recoil starter or cooling air path
clogged with dlft.
Carbon built-up in combusition chamber
Poor ventilation around engine
WARNING
k
— 12 —
M
Tighten properly.
Fill fuel tank.
Clean.
M
R o t a t e e n g i n e w i t h s p a r k p l u g
removed to discharge excess fuel.
Clean spark plug.
Clean.
M
Change gasoline.
Replace spark plug.
Replace spark plug.
M
Turn engine switch to " I " (Start)
position.
Clean.
M
Select a better location.
Interval
First Every
Daily
20 hours 20 hours
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Replace every 3 years
Remedy
Every Every
50 hours 100 hours
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English