Troubleshooting - Ryobi RHT2660DA Operator's Manual

PROBLEM
Engine will not start.
Engine starts but will
not accelerate.
Engine starts but will
only run at high speed
at half choke.
Engine does not reach
full speed and emits
excessive smoke.
Engine starts, runs,
and accelerates but
will not idle.
EMISSIONS MAINTENANCE SCHEDULE AND WARRANTED PARTS LIST
Emissions Parts
CATALYST MUFFLER ASSEMBLY ...................................................................................................................... X
AIR FILTER ASSY
includes:
Filter Screen ..................................................... X
SPARK SCREEN ..................................................................................................................................................X
FUEL TANK ASSY
includes:
Fuel Lines ........................ X
Fuel Cap .......................... X
IGNITION ASSY
includes:
Spark Plug ........................................................................................ X
ALL EMISSIONS-RELATED PARTS ARE WARRANTED FOR TWO YEARS OR FOR THE PERIOD OF TIME PRIOR
TO THE PARTS FIRST SCHEDULED RE PLACE MENT WHICHEVER COMES FIRST.

TROUBLESHOOTING

POSSIBLE CAUSE
No spark.
No fuel.
Engine is flooded.
Starter rope pulls harder
now than when new.
Engine requires approxi-
mately three minutes to
warm up.
Carburetor requires
adjustment.
Check lubricant fuel mix-
ture.
Air filter screen is dirty.
Spark arrester screen is
dirty.
I d l e s p e e d s c r ew o n
carburettor needs adjust-
ment
Inspect Before Clean Every
Each Use 5 Hours
REMEDY
Clean or replace spark plug. Reset spark plug gap. Refer to Spark
Plug Replacement earlier in this manual.
Push primer bulb until bulb is full of fuel. If bulb does not fill, primary
fuel delivery sys tem is blocked. Con tact a servicing dealer. If prim er
bulb fills, engine may be flooded, proceed to next item.
Pull starter three times with choke lever at "RUN". If engine does
not start, move choke lever to "START" and repeat normal starting
procedure. If engine still fails to start, repeat procedure with a new
spark plug.
Contact a servicing dealer.
Allow engine to completely warm up. If engine does not accelerate
after three minutes, contact a servicing dealer.
Contact a servicing dealer.
Use fresh fuel and the correct 2-cycle lubricant mix.
Clean air filter screen. Refer to Cleaning The Air Filter Screen earlier
in this manual.
Contact a servicing dealer.
Turn idle speed screw clockwise to increase idle speed. See figure
11. The blades should not move at idle.
Replace
Every 25 Hours
or Yearly
13
Clean Every Replace Every
25 Hours 50 Hours
or Yearly