LONCIN LC2V80FD - Battery Installation and Care; Battery Specifications and Precautions; Connecting the Starter Motor

Troubleshoot
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2）Inefficient power
3） Sudden stall
Phenomena
Causes
Elimination
Speed increase slowly
while accelerating ,
even decrease or
engine stall in severe
condition
Ignition
system
Improper timing
Replace ignition
coil
Fuel system
Air mixed in fuel line
Exhaust air
Orifice regulated
improperly
Regulate
Needle valve or orifice
blocked
Clean , blow off
Fuel cock blocked
Clean or replace
Carbonized in
combustion chamber
Clean c arbonized
dirt
Inlet system
Air cleaner block
Clean or replace
element
Inlet system leakage
Repair or replace
Poor
compression
Piston 、cylinder、
piston ring worn out
replace
Leakage between
block and head
Replace gasket
Incorrect valve
clearance
Regulate
Valve untight
Grind or replace
Phenomena
Causes
Elimination
Fuel
system
Fuel run out
Fill fuel，unblock
Sudden stall
at run
Carburetor blocked
Check fuel line，unblock
Oil leaked from carburetor float
Repair float
Needle valve jammed
Repair needle valve
Solenoid valve of carburetor
damage
Change solenoid valve
Ignition
system
Spark plug sparked through
Carbonized dirt makes short circuit
Replace spark plug
Spark plug electrode dropped
off
Replace spark plug
High tension wire dropped off
Repair or replace
Ignition coil broken down
replace
Others
Severely scuffing of cylinder
bore or valve dropped off
Repair or replace
damaged part