Ryobi RY08554 Operator's Manual page 13

OPERATION
OXYGENATED FUELS
ThroTTle
Some conventional gasolines are blended with alcohol or an
on/oFF SWiTch
TriGGer
ether compound. These gasolines are collectively referred
to as oxygenated fuels. To meet clean air standards, some
areas of the United States and Canada use oxygenated fuels
to help reduce emissions.
choke
If using an oxygenated fuel, make sure it is unleaded and
leVer
meets the minimum octane rating requirements. Before using
an oxygenated fuel, try to confirm the fuel's contents. Some
states/provinces require this information to be posted on the
pump. The following are the EPA approved percentages of
oxygenates: primer
bulb
Ethanol (ethyl or grain alcohol) 10% by volume. You
may use gasoline containing up to 10% ethanol by volume.
Gasoline containing ethanol may be marketed under the
name "Gasohol." Do not use E85 fuel.
STArTer
MTBE (methyl tertiary butyl ether) 15% by volume. You
Grip
Fig. 9
may use gasoline containing up to 15% MTBE by volume.
Methanol (methyl or wood alcohol) 5% by volume. You
may use gasoline containing up to 5% methanol by volume
as long as it also contains cosolvents and corrosion inhibitors
to protect the fuel system. Gasoline containing more than 5%
methanol by volume may cause starting and/or performance
problems. It may also damage metal, rubber, and plastic
parts of the product or your fuel system.
If you notice any undesirable operating symptoms, try another
service station or switch to another brand of gasoline.
NOTE: Fuel system damage or performance problems
resulting from the use of an oxygenated fuel containing more
than the percentages of oxygenates stated previously are
not covered under warranty.
STARTING AND STOPPING Fig. 10
See Figures 9 - 10.
proper operATinG poSiTion
To start a cold engine:
DO NOT squeeze the throttle trigger until the engine starts
and runs.
 Lay the blower/vacuum on a flat, bare surface.
 PRIME - Press the primer bulb 7 times.
 SET the start lever to the START position.
 PULL the starter grip until the engine starts.
 Wait 6-10 seconds, then squeeze the trigger to run.
NOTE: Squeezing and releasing the throttle trigger releases
the start lever to the RUN position.
To start a warm engine:
PULL the starter grip until the engine starts.
To stop the engine:
Press and hold the switch in the stop " " position until
the engine stops.
Fig. 11
13