Hyundai HYBV26, User Manual

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Problem/Scenario Possible cause Solution
The spark plug does not
spark
Spark plug
Spark plug electrode wet Dry
Covered with carbon Replace plug
Damaged insulation Replace insulation
Spark gap incorrect Adjust to 0.6~0.7mm
Spark plug electrode burned Replace plug
Magneto
Damaged H T Cable Repair or replace
Bad coil insulation Replace coil
Damage to wire coil Replace coil
The electronic firing unit
is defective
Replace the defective unit
Damaged H T Cable Repair or replace
The spark plug function
correctly
Compression ratio OK and
fueling well
Too much fuel in cylinder Drain excess fuel
Water or dirt in fuel, stale fuel Replace with fresh fuel
Fueling well but the
compression ratio is poor
Cylinder piston ring
worn or damaged
Replace worn damaged items
The spark plug is loose Tighten spark plug
Carburetor not fueling
No fuel in tank
Add fuel – may require
priming
Filter gauze clogged Clean
Tank air hole clogged Clean
Problem/Scenario Possible cause Solution
Compression ratio is all ok
Filter clogged Clean filter
Air is able to pass through
Tighten up to prevent air
from penetrating
Air is able to pass through the
carburetor connection
Tighten up
Engine is overheating
Stop the engine and let it cool down.
When you restart it, avoid long
periods at heavy load and high revs
Water in fuel Drain and replace fuel
Carbon clogged exhaust Clean exhaust
Engine overheating
Fuel mixture too lean Adjust the carburetor
Cylinder covered with carbon
Clean the cylinder
Engine knocking or making a noise
Fuel has gone stale or bad Replace with clean fresh petrol
Carbon in cylinder Clean the cylinder
Some engine parts are worn or
damaged
Check and replace defective
parts
10. TRO U BLESHOOTING
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