Ryobi RHT2660DA - Troubleshooting; Engine Start and Performance Issues; Idle Speed and Carburetor Issues; Emissions Maintenance Schedule

13
TROUBLESHOOTING
PROBLEM POSSIBLE CAUSE REMEDY
Engine will not start. No spark.
No fuel.
Engine is flooded.
Starter rope pulls harder
now than when new.
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.
Engine starts but will
not accelerate.
Engine requires approxi-
mately three minutes to
warm up.
Allow engine to completely warm up. If engine does not accelerate
after three minutes, contact a servicing dealer.
Engine starts but will
only run at high speed
at half choke.
Carburetor requires
adjustment.
Contact a servicing dealer.
Engine does not reach
full speed and emits
excessive smoke.
Check lubricant fuel mix-
ture.
Air filter screen is dirty.
Spark arrester screen is
dirty.
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.
Engine starts, runs,
and accelerates but
will not idle.
Idle speed screw on
carburettor needs adjust-
ment
T
urn idle speed screw clockwise to increase idle speed. See figure
11. The blades should not move at idle.
EMISSIONS MAINTENANCE SCHEDULE AND WARRANTED PARTS LIST
Emissions Parts Inspect Before Clean Every Replace Clean Every Replace Every
Each Use 5 Hours Every 25 Hours 25 Hours 50 Hours
or Yearly or Yearly
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.