Hyundai HYBC5080AV User Manual

7.1. If troubleshooting does not solve the
problem, contact your dealer or the
manufacturer directly. Use only original parts
approved by the manufacturer, otherwise a
hazard risk arises.
NO SPARK.
Possible causes;
1. Carbon deposit between electrodes of the
spark plug.
2. Ignition coil defective flywheel magneto too
weak.
Possible corrective actions;
1. Clean the spark plug. Adjust the gap to 0.6 ~
0.7mm, Replace the spark plug.
2. Replace the Ignition coil or the flywheel.
WEAK SPARK.
Possible causes;
1. Too much fuel in the combustion chamber,
poor fuel or water in tank.
2. Blocked fuel line
Possible corrective actions;
1. Remove spark plug and dry, replace fuel.
2. Clean the carburetor and clean the lines.
NORMAL FUEL SUPPLY BUT WEAK
COMPRESSION
Possible causes;
1. Worn piston rings, spark plug not tightened,
the cylinder head is not tightly wrong valve
clearance or ignition.
Possible corrective actions;
1. Replace or adjust.
NORMAL FUEL SUPPLY AND POOR SPARK
Possible causes;
1. Poor contact between spark plug cap and
spark plug.
Possible corrective actions;
1. Check or exchange.
MOTOR DOES NOT COME UP TO SPEED
Possible causes;
1. Choke is in "cold start" position, exhaust
system does not clog air supply, worn Movable
elements, spark weak, valve clearance to big,
sooty cylinder head.
Possible corrective actions;
1. Open choke, exhaust system ignition coil
exchange check or replace flywheel Adjust spark
plug.
POWER RUNS OUT
Possible causes;
1. Congested fuel lines to the carburetor. Spark
plug gap incorrect.
Possible corrective actions;
1. Unblock/Replace fuel lines and carburetor.
Reset spark plug gap.
NOISY ENGINE
Possible causes;
1. Incorrect choke lever position, or
damage to crankshaft.
Possible corrective actions;
1. Check and correct choke lever position.
Check and/or replace crankshaft.
LEAKING CARBURETOR
Possible causes;
1. Failure of the non-return valve on the fuel
tank lid. Worn carburetor gasket.
Possible corrective actions;
1. Replace the fuel cap. Replace the carburetor
seal.
7. TROUBLESHOOTING
Page 28

Hyundai HYBC5080AV Specifications

General

Brand	Hyundai
Model	HYBC5080AV
Category	Brush Cutter
Language	English