DR Power RapidFire 5.5 HP Subaru (July 2013 - Present) Engine Manual - Manual (Page 17)

CONTACT US AT www.DRpower.com 17
4. ENGINE SUDDENLY STOPS RUNNING:
TROUBLE CAUSE REMEDY
Stops suddenl
y when
runnin
g.
Fuel supply sy
stem
Fuel tank is empty Refill fuel tank
Carburetor is clogged Check fuel line and dredge
Float is leaking Repair
Needle valve is sticking Dismantle float chamber and free up needle valve
Ignition
system
Spark plug is damaged, or short- circuited by carbon
deposit Replace spark plug
Side electrode of spark plug is dropped out Replace spark plug
High-tension wire is dropped out Weld on
Ignition coil is punctured or short-circuited Replace ignition coil
Engine kill wire is touching (grounding) Locate ground and insulate
Engine internal
Cylinder is seriously scored and valve dropped out Repair or replace damaged parts
5. ENGINE IS OVERHEATING
TROUBLE CAUSE REMEDY
Gaso
line En
gine Is O
verheating.
Insufficient oil Refill engine oil to proper level
Exhaust pipe blocked up Clean exhaust pipe
Shroud leaking Repair damaged part
Cooling fins blocked by foreign matter Clear cooling fins
Cooling fan loose and not working Repair cooling fan
Connection rod deformation causing piston and cylinder
bushing side wear Replace connection rod
Cylinder or piston or piston ring is worn and is creating
heat between cylinder and crankcase Replace the worn parts
Improper adjustment of engine governor causing high
speed. Readjust engine governor
Crankshaft main bearing burnt out Replace main bearing