Hitachi CS 51EAP User Manual

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Trouble Cause Corrective action
Starts, but
when
accelerating
…
The engine stalls.
Clogged fuel filter Cleaning or replacement
Insufficient warm-up Warm-up
Poorly adjusted carburetor ass’y Adjustment
Poor acceleration; no
increase in revolutions
Clogged cylinder vent passage,
exhaust port and/or
carbon-clogged muffler
Cleaning
Clogged air cleaner
Chain brake set on Release
Poorly adjusted carburetor ass’y
Adjustment, cleaning or
replacement
Starts, but
…
Fluctuating revolutions
at high speed
Dirt-clogged high-speed fuel line Cleaning
Defective sealing of the packing Replacement
Faulty carburetor ass’y
Adjustment, cleaning or
replacement
Excessive fuel
consumption
Clogged air cleaner Cleaning
Poorly adjusted carburetor ass’y Adjustment
Chain oil is not discharged.
Insufficient amount of chain oil in
the oil tank
Insufficient chain oil in the oil
tank
Clogged chain oil discharge port
Cleaning
Clogged oil filler port on the guide
bar
Clogged oil filter
Poor adjustment of chain oil
discharge amount
Poorly adjusted chain oil
discharge amount
Faulty oil pump Faulty oil pump

Hitachi CS 51EAP Specifications

General

Brand	Hitachi
Model	CS 51EAP
Category	Chainsaw
Language	English