Multiquip GAC-6HZR ユーザーズマニュアル

Difficult to start. Fuel is 

available but no SPARK 

at spark plug.

Spark plug bridging?

Check gap, insulation or replace spark plug.

Carbon deposit on spark plug?

Clean or replace spark plug.

Short circuit due to deficient spark plug 

insulation?

Check spark plug insulation. Replace if 

worn.

Improper spark plug gap?

Set to proper gap.

Difficult to start. Fuel is 

available and SPARK 

is present at the spark 

plug.

ON/OFF switch is shorted?

Check switch wiring. Replace switch.

Ignition coil defective?

Replace ignition coil.

Improper spark gap, points dirty?

Set correct spark gap and clean points.

Condenser insulation worn or short 

circuiting?

Replace condenser.

Spark plug wire broken or short circuiting?

Replace defective spark plug wiring.

Difficult to start. Fuel 

is available, SPARK is 

present at the spark 

plug  and compression 

is normal.

Wrong fuel type?

Flush fuel system and replace with correct 

type of fuel.

Water or dust in fuel system?

Flush fuel system.

Air cleaner dirty?

Clean or replace air cleaner.

Difficult to start. Fuel 

is available, SPARK is 

present at the spark 

plug  and compression 

is low.

Suction/exhaust valve stuck or protruded?

Reseat valves.

Piston ring and/or cylinder worn?

Replace piston rings or piston.

Cylinder head and/or spark plug not 

tightened properly?

Torque cylinder head bolts and spark plug.

Head gasket and/or spark plug gasket 

damaged?

Replace head and spark plug gaskets.

No fuel present at 

carburetor.

Fuel not available in fuel tank?

Fill with correct type of fuel.

Fuel cock does not open properly?

Apply lubricant to loosen fuel cock lever. 

Replace if necessary.

Fuel filter clogged?

Replace fuel filter.

Fuel tank cap breather hole clogged?

Clean or replace fuel tank cap.

Air in fuel line?

Bleed fuel line

Weak in power. 

Compression is proper 

and does not misfire.

Air cleaner dirty?

Clean or replace air cleaner.

Improper level in carburetor?

Check float adjustment. Rebuild carburetor.

Defective spark plug?

Clean or replace spark plug.