10.21
ELECTRICAL
10
9923412 - 2012 Sportsman 400/500 and EFI Tractor Service Manual
© Copyright 2011 Polaris Sales Inc.
IGNITION SYSTEM
Overview
The Sportsman has incorporated into it's design a DC/ CDI ignition system. The DC/ ignition system relies on battery power for ignition.
EFI -
Instead of generating DC voltage via flywheel magnetic induction, a 12 Vdc current is supplied from the Ignition/Fuel Pump Relay to the Ignition
coil. At the ECU, a small A/C signal from the CPS helps the ECU pre-determine Top Dead Center (TDC), which in turn signals the ECU to release
the electrical charge collapsing the coil field for ignition (based on the ECU timing map).
CDI-
A 12 volt DC current is supplied directly from the battery to the CDI. At the CDI, a DC current is supplied to the coil for the initial ignition charge.
A small A/C signal from the stator pulse coil triggers the CDI to fire the coil.
DC/ignition systems have the ability to ignite with as little as 6 volts of power.
Some of the advantages of DC ignition are:
• Stronger, more consistent spark at low rpm for better performance
• Easier starts
• Fault detection by the ECU (EFI)
NOTE:
Do not remove wiring harness while the key switch is on or while the engine is running. Damage to
electronic components may occur!
SPORTSMAN FOREST TRACTOR 500 EFI
SPORTSMAN
Carbureted
Содержание 2012 Sportsman Forest 500 International
Страница 1: ...1 GENERAL 2 MAINTENANCE 3 ENGINE 4 FUEL SYSTEMS 5 BODY SUSPENSION...
Страница 2: ...6 CLUTCH 7 FINAL DRIVE 8 TRANSMISSION 9 BRAKES 10 ELECTRICAL...
Страница 3: ...NOTES...
Страница 115: ...NOTES ENGINE 3 60...
Страница 116: ...FUEL SYSTEM 4 1 CHAPTER 4 FUEL SYSTEM 4 CARBURETION SYSTEM 4 3 ELECTRONIC FUEL INJECTION SYSTEM EFI 4 25...
Страница 117: ...4 2 FUEL SYSTEM...
Страница 139: ...NOTES CARBURATION AND FUEL SYSTEM 4 24...
Страница 185: ...NOTES 500 EFI FUEL SYSTEM 4 70...
Страница 212: ...NOTES...
Страница 258: ...NOTES CLUTCHING 6 46...
Страница 330: ...NOTES TRANSMISSION 8 24...
Страница 392: ...10 28 ELECTRICAL 9923412 2012 Sportsman 400 500 and EFI Tractor Service Manual Copyright 2011 Polaris Sales Inc...
Страница 424: ...NOTES ELECTRICAL 10 60...
Страница 425: ...Located By Battery...
Страница 426: ......
Страница 427: ...Located By Transmission Breakout Resistor Module...
Страница 428: ......
Страница 429: ...Located By Battery...
Страница 430: ......
Страница 431: ...Located By Transmission Breakout Resistor Module...
Страница 432: ......