Heat Management system
#4
03-29-2009 | 09:12 PM
Road Master
Joined: Dec 2005
Posts: 1,052
Likes: 144
From: Texas
My 2003 NT goes thru:
Phase 1 - At approximately 320˚ F the ECM will gradually reduce engine idle speed until the engine temperature drops or the engine reaches 800 rpm.
Phase 2 - If engine temperature reaches 338˚ F the ECM richens the air/fuel ratio to provide additional cooling.
Phase 3 - If the engine temperature reaches 356˚ F fuel injector pulses are 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 third stage will only happen when the motorcycle is stationary.
Phase 2 - If engine temperature reaches 338˚ F the ECM richens the air/fuel ratio to provide additional cooling.
Phase 3 - If the engine temperature reaches 356˚ F fuel injector pulses are 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 third stage will only happen when the motorcycle is stationary.
Last edited by agapsdiver; 03-29-2009 at 09:31 PM.
#5
03-29-2009 | 11:08 PM
Cruiser
Joined: Mar 2008
Posts: 209
Likes: 0
My 2003 NT goes thru:
Phase 1 - At approximately 320˚ F the ECM will gradually reduce engine idle speed until the engine temperature drops or the engine reaches 800 rpm.
Phase 2 - If engine temperature reaches 338˚ F the ECM richens the air/fuel ratio to provide additional cooling.
Phase 3 - If the engine temperature reaches 356˚ F fuel injector pulses are 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 third stage will only happen when the motorcycle is stationary.
Phase 2 - If engine temperature reaches 338˚ F the ECM richens the air/fuel ratio to provide additional cooling.
Phase 3 - If the engine temperature reaches 356˚ F fuel injector pulses are 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 third stage will only happen when the motorcycle is stationary.
#7
03-30-2009 | 05:53 AM
Road Master
Joined: Dec 2005
Posts: 1,052
Likes: 144
From: Texas
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#10
03-30-2009 | 05:27 PM
Ultimate HDF Member
Joined: Oct 2007
Posts: 5,257
Likes: 6
From: Leander Texas