TPC90 Operations Manual
SYMPTOM
“Weak in power”
compression is proper
and does not misfire.
Engine overheats.
Rotational speed
fluctuates.
Recoil starter
malfunction.
POSSIBLE CAUSES
Air filter not clean.
Improper level in carburetor.
Defective spark plug.
Spark plug heat value improper.
Correct type of fuel.
Cooling fins dirty.
Governor adjusted correctly.
Governor spring defective.
Fuel flow restricted.
Recoil mechanism clogged
with dust and dirt.
Spiral spring loose.
SOLUTION
Clean or replace air filter.
Check float adjustment, re-
build carburetor.
Clean or replace spark plug.
Replace with correct type of spark plug.
Replace with correct type of fuel.
Clean cooling fins.
Adjust governor.
Replace governor spring.
Check entire fuel system for leaks or clogs.
Clean recoil assembly with
soap and water.
Replace spiral spring.
4. TECHNICAL DATA
Size (in):
Model A
B
C D
TPC90H 42.1 38.1 21.9 17.7
19