Troubleshooting Guide - Zenoah G2501 Owner's Manual

G2501 / G2501 OPS
WARNING
Be sure to round off the front edge to reduce the
chance of kickback or tie-strap breakage.
Make sure every cutter has the same length and edge
angles as illustrated.
Cutter length
■ Guide Bar
• Reverse the bar occasionally to prevent partial wear.
• The bar rail should always be square. Check for wear

9. Troubleshooting Guide

Case 1. Starting failure
WARNING
Make sure the icing prevention system is not work-
ing.
Check fuel for water
or substandard mix-
ture.
d
Check for engine
flooding.
d
Check spark ignition.
GB-16
*01_G2501 G2501ops_GB_CS5_六.indd 16
Filing angle
Side plate angle
Top plate cutting angle
Replace with proper
a
fuel.
Remove and dry the
spark plug.
a
Then pull the starter
again with no choke.
Replace with a new
a
plug.
of the bar rail. Apply a ruler to the bar and the out
side of a cutter. If a gap is observed between them,
the rail is normal. Otherwise, the bar rail is worn.
Such a bar needs to be corrected or replaced.
Ruler
Gap
No gap
Chain tilts
WARNING:
This saw is equipped with one of the following low
kickback bar/chain combinations:
Bar Size Guide Bar Saw Chain
10 2982-52111 3622-52210 T2041-51110
Case 2. Lack of power/Poor acceleration/
Rough idling
Check fuel for water
or substandard mix- a
ture.
d
Check air filter and
fuel filter for clog- a
ging.
d
Check carburetor
for inadequate ad- a
justment.
Case 3. Oil does not come out
Check oil for sub-
a
standard quality.
d
Check oil passage
a
and ports for clog-
ging.
If the unit seems to need further service, please consult
with an authorized service shop in your area.
Zenoah Part Number
Drum
Replace with proper
fuel.
Clean.
Readjust speed
needles.
Replace.
Clean.
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