4-6 2005 PDI: Softail Models
FUEL SYSTEM 4.4
GENERAL
CAUTION
Some fuel suppliers sell gasoline which has been
blended with an alcohol or an ether. The type and amount
of alcohol or ether added to the fuel is important.
CAUTION
Do not use gasoline that contains methanol. Doing so
can result in fuel system component failure, engine dam-
age and/or equipment malfunction. (00148a)
● Gasolines containing ETHANOL (ethyl alcohol or grain
alcohol) can be used. Gasoline/ethanol blends are a mix-
ture of 10% ethanol and 90% unleaded gasoline. They
are identified as “gasohol,” “ethanol enhanced,” or “con-
tains ethanol.”
● Gasolines containing METHYL TERTIARY BUTYL
ETHER (MTBE) can also be used. Gasoline/MTBE
blends are a mixture of gasoline and as much as 15%
MTBE.
● REFORMULATED OR OXYGENATED GASOLINES
(RFG): “Reformulated gasoline” is a term used to
describe gasoline blends that are specifically designed to
burn cleaner than other types of gasoline, leaving fewer
“tailpipe” emissions. They are also formulated to evapo-
rate less when you are filling your tank. Reformulated
gasolines use additives to “oxygenate” the gas. Your
motorcycle will run normally using this type of gas and
Harley-Davidson recommends you use it when possible,
as an aid to cleaner air in our environment
Because of their different chemical properties (which affect
fuel volatility and ignition characteristics), these blends may
adversely affect the starting, drivability, and fuel efficiency of
the motorcycle. If you experience these problems, Harley-
Davidson recommends using straight, unleaded gasoline.
CAUTION
Use only unleaded fuel in California model catalytic con-
verter-equipped motorcycles. Using leaded fuel will dam-
age the emission control system. (00150a).
CHECKING QUICK CONNECT FUEL
LINE FITTING–FUEL INJECTED
MODELS
1WARNING1WARNING
To avoid an uncontrolled discharge or spray of gasoline,
always be sure the quick-connect fitting (under left side
of fuel tank) is properly mated. A slight tug on the fuel
line will verify this condition. Gasoline is extremely flam-
mable and highly explosive. Inadequate safety precau-
tions could result in death or serious injury.
1. Tug on fuel supply line (under left side of fuel tank) to be
sure quick connect fitting is properly mated.
2. If fuel line comes free, push up on sleeve of quick-con-
nect fitting and insert neck of fuel supply line fitting. While
pushing up on bottom of fuel supply line fitting, pull down
on sleeve until it “clicks” into the locked position.
FUEL TANK
Make sure engine stop switch on the handlebar is switched to
the OFF position. Turn the ignition/light switch to the IGNI-
TION position. Fuel injected models: verify that Low Fuel
lamp is lit. Partially fill fuel tank with gasoline. Follow FUEL
recommendations found in the Owner’s Manual. Use
unleaded gasoline, 91 octane or higher. Verify function of fuel
gauge as fuel tank is filling, then turn ignition/light switch OFF.
Inspect fuel lines for leaks.
Carbureted Models
See Figure 4-6. After adding gasoline, check for smooth oper-
ation of the fuel valve. Inspect fuel valve for leaks.
Figure 4-6. Fuel Supply Valve
o0046box
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