2006 Harley-Davidson Heritage Softail Owner's Manual (Page 74 of 156)

2006 Harley-Davidson Heritage Softail Owner's Manual
Posted on 15 Mar, 2016
Model: 2006 Harley-Davidson Heritage Softail
Pages: 156
File size: 3 MB

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Fuel injected Twin Cam engines use a four phase heat management system to reduce engine
temperature under extreme conditions. A rider with a very hot engine may notice the affects of this
four phase heat management system and incorrectly assume an idle problem exists.
Phase 1: When the engine temperature sensor signals that the cylinder head has reached
approximately 266° F (130° C) the ECM will gradually reduce engine idle speed until the
engine temperature drops or the engine reaches 900 RPM.
Phase 2: If engine temperature reaches 293° F (145° C), the ECM will gradually reduce
engine idle speed until the engine temperature drops or the engine reaches 800 RPM.
Phase 3: If the engine temperature reaches 322° F (161° C), the ECM richens the air/fuel
ratio to provide additional cooling and advances the spark timing 10°.
Phase 4: If the engine temperature reaches 331° F (166° C), fuel injector pulses (2 of 8) are
randomly interrupted. The air drawn in and expelled helps cool the engine further. Since
there is no combustion it would be perceived as a misfire. This fourth stage will only happen
when the motorcycle is stationary.
If necessary, engine idle speed will be increased during all Phases to maintain proper battery
voltage.
Stopping the Engine
1. Stop the engine by turning OFF the engine stop switch on right handlebar.
2. Turn OFF the ignition/headlamp key switch. If the engine should be stalled or stopped in any
way, turn off the ignition/headlamp key switch at once to prevent battery discharge.
3. Turn the fuel valve to the OFF position if applicable.
Shifting Gears
Getting Started
The clutch must be fully disengaged before attempting a
gear shift. Failure to fully disengage the clutch can result
in equipment damage. (00182a)
Gear shift pattern is first gear down, next four gears up.
NOTE:
Always start engine with transmission in neutral. Always start motorcycle forward motion from first
gear.
1. With motorcycle engine running and jiffy stand retracted, pull the clutch hand lever in against
handlebar grip to fully disengage clutch.
2. Push the foot shift lever down to end of its travel and release. The transmission is now in
first gear.
3. To start forward motion, release the clutch lever slowly to engage the clutch and at the same
time, open throttle gradually.


General
Year 2006
Make Harley-Davidson
Model Heritage Softail
Language English
Pages 156
Filetype PDF (Download)
File size 3 MB

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