Troubleshooting
Problem
Power loss or sudden engine cut-out
Engine will not start
Engine difficult to start
Engine runs erratically; changing revolutions
Chainsaw does not cut effectively, and produces fine sawdust
Possible Cause
Fuel Tank (20) empty
Water in the fuel
Air filter element clogged
Ignition Switch (14) switched off
Fuel lines clogged
Fuel Tank (20) empty
Spark plug defective or wrongly gapped
Engine or carburettor fault
Ignition not primed
Air Filter Element (38) dirty or clogged
Fuel contaminated or impurities in fuel system
Deposits on the Spark Plug (41) electrodes
Incorrect use of Choke Lever (15)
Carburettor or choke mechanism damaged
Carburettor fuel/air ratio settings wrong
Carburettor defective
Saw Chain (24) blunt
Chain Oil Reservoir (7) empty
Chain oil delivery too low
Chain tensioned incorrectly
If the above troubleshooting solutions fail, contact your dealer or an authorised GMC service centre
17
Solution
Refill Fuel Tank
Drain the fuel system and flush with 2-stroke mix
Service air filter element or replace if necessary
Switch on Ignition Switch
Clean fuel lines and flush with new 2-stroke mix
Refill Fuel Tank
Refer to 'Maintaining the spark plug' and replace Spark Plug if necessary
Contact your authorised GMC service centre to arrange repair
Ensure to prime the ignition using the Primer Bulb (39) before starting
Refer to 'Maintaining the air cleaner'
Clean fuel lines and flush with new 2-stroke mix
Refer to 'Spark plug maintenance'
Use Choke Lever only if engine is cold
Contact your authorised GMC service centre to arrange repair
Adjust carburettor as described in 'Carburettor adjustment'
Contact your authorised GMC service centre to arrange repair
Sharpen or replace Saw Chain
Refill chain oil
Increase chain oil delivery as described in 'Adjusting chain oil delivery'
Correct chain tension as described in 'Adjusting chain tension'
GB