Ii. Low Gasoline Engine Power Output; Gasoline Engine Will Not Run Smoothly - DUROMAX XP7HPE Owner's Manual

● Make sure there is no spilled fuel outside the engine and that the spark plug isn't dipped with
fuel.
● To prevent fire, keep sparks far away from the spark plug mount hole.
2. By using starting motor
ITEM
Check battery connection
Check battery
Starting motor functions
normally
Having fulfilled all the check items above, the engine still fails to work, contact your dealer for help.

II. LOW GASOLINE ENGINE POWER OUTPUT

TROUBLE
When turning
throttle greater,
speed in crease
responds slow or
speed is
decreased even
engine stops
running
III. GASOLINE ENGINE CANNOT RUN SMOOTHLY
TROUBLE
Engine is pinging
Incorrect connection
No charge or under charge,
corrosion
Be the same as kick-starter
Ignition
Incorrect ignition time
system
Air in fuel line or fuel line
clogged
Main oil flow hole is not
adjusted properly
In carburetor, needle valve hole
and main oil flow hole clogged
Fuel supply
Fuel cock is clogged up
system
Too much carbon deposit in
combusting chamber
Too much carbon fouling in
muffler and exhaust pipe
Air cleaner is clogged up
Intake pipe is leaking
Piston or cylinder or piston ring
is worn
Air leakage from the surface by
Poor
which cylinder block contacting
compression
with cylinder head
Too big or too small valve
clearance
Valve tightness is poor
Piston, cylinder or piston ring is worn
excessively
Piston pin and piston pin hole are
worn excessively
Tie rod small head is worn excessively Replace tie rod
CAUSE
CAUSE
CAUSE
19
REMEDY
Correct
Check the breaker, charge
up the battery or replace it
Conduct it in the same way
of kick-starter
REMEDY
Readjust ignition advance
angle
Exhaust air or dredge fuel
line
Readjust
Clean and blow to get
through
Clean, replace damaged
part
Clear away
Clear away
Clean air cleaner filter
elemi
Repair or replace
Replace the worn
Replace cylinder gasket
Readjust it
repair
REMEDY
Replace the worn
Replace piston or piston pin