General failures’ analysis
GS35 – GS350 – MT350 – MT3500 chainsaws
Trouble shooting: LOW PERFORMANCE
Symptoms
Causes
Remedies
Go to
1.
Engine
overheating
1.a
Carburetor mixture too lean
1.b
Air leaking in the engine or in
fuel system
1.c
Wrong oil-fuel ratio
1.d
Fan, starter housing, cylinder
fins dirty or damage
1.e
Carbon deposit on piston
1.a
Set the carburetor
1.b
Find air leaking and eliminate it
1.c
Replace with fresh fuel and right
oil ratio
1.d
Clean or replace it
1.e
Eliminate deposit
Section 2
2.
Engine
performance is
not stable
2.a
Dirty air filter
2.b
Loose spark plug or damaged
2.c
Water in the fuel
2.d
Seizure
2.e
Faulty carburetor or diaphragm
2.a
Clean or replace
2.b
Tighten or replace
2.c
Clean the carburetor and replace
fuel
2.d
Replace the components
2.e
Check and replace
Section 3
Section 1
