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

Filing angle

Side plate angle

Top plate cutting angle

Guide Bar

Reverse the bar occasionally to prevent partial wear.

The bar rail should always be square. Check for wear of the bar rail. Apply a ruler to the bar and the out

G2500 / G2500 OPS

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:

 

 

Zenoah Part Number

Bar Size Guide Bar

Saw Chain

Drum

102475-52110 2475-52210 2475-51110

102475-52120 3622-52210 2841-51110

G B

9. Troubleshooting Guide

Case 1. Starting failure

WARNING

Make sure the icing prevention system is not work- ing.

Check fuel for water

a fuel.Replace with proper

or substandard mix-

ture.

 

Case 2. Lack of power/Poor acceleration/ Rough idling

Check fuel for water

 

 

a

fuel.Replace with proper

or substandard mix-

ture.

 

 

 

 

 

 

 

d

 

 

Check air filter and

 

 

a Clean.

fuel filter for clog-

d

Check for engine flooding.

d

Check spark ignition.

a

a

Remove and dry the spark plug.

Then pull the starter again with no choke.

Replace with a new plug.

ging.

 

 

 

 

 

 

 

d

 

 

Check carburetor

 

 

a

needles.Readjust speed

for inadequate ad-

justment.

 

 

 

 

 

Case 3. Oil does not come out

 

 

 

Check oil for sub-

a

Replace.

standard quality.

 

 

 

d

 

 

Check oil passage

 

 

a

Clean.

and ports for clog-

ging.

 

 

 

 

10. Disposal

When disposing your machine, fuel or oil for the machine, be sure to allow your local regulations.

If the unit seems to need further service, please consult with an authorized service shop in your area.

GB-17

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Zenoah G2500 OPS owner manual Troubleshooting Guide, Disposal, Case 1. Starting failure, Case 3. Oil does not come out