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| techtalk:evo:elec02 [2024/08/22 00:46] – [OVERVIEW: Charging System and Power Distribution] ixl2relax | techtalk:evo:elec02 [2025/06/24 09:36] (current) – [Relays] ixl2relax | ||
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| (In the diagrams, S=Source & is B+ from the Battery or thru Keyswitch. L=Load & goes to the Starter Solenoid.)\\ | (In the diagrams, S=Source & is B+ from the Battery or thru Keyswitch. L=Load & goes to the Starter Solenoid.)\\ | ||
| (Be sure to see the note at the end of this section regarding diodes in relays)\\ | (Be sure to see the note at the end of this section regarding diodes in relays)\\ | ||
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| + | For Starter Relay function [[techtalk: | ||
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| **(1980-1992 & Early 1993)** | **(1980-1992 & Early 1993)** | ||
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| * **NOTE:** The 2007-2009 model years have a significant history of corrosion and gunk collecting in the fuse/relay tray causing low-grade shorts and erratic electrical operation - This is especially problematic if the bike is left outside or operated in the rain. It's a good idea to check & thoroughly clean this tray at least every year (or 4 to 6 months if parked outside). | * **NOTE:** The 2007-2009 model years have a significant history of corrosion and gunk collecting in the fuse/relay tray causing low-grade shorts and erratic electrical operation - This is especially problematic if the bike is left outside or operated in the rain. It's a good idea to check & thoroughly clean this tray at least every year (or 4 to 6 months if parked outside). | ||
| * **NOTE2:** In the UK, check for part number Durite 0-727-13. | * **NOTE2:** In the UK, check for part number Durite 0-727-13. | ||
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| **(2010-2013)** | **(2010-2013)** | ||
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| * Standard MC-RLY9 | * Standard MC-RLY9 | ||
| * (Superceded from: 31579-04) | * (Superceded from: 31579-04) | ||
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| **(2014-on)** | **(2014-on)** | ||
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| - | **NOTE: Polarity & Diodes** | + | **NOTES:** |
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| + | **System Relay Function (2007-2013)** | ||
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| + | **Polarity & Diodes** | ||
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| *If the originally specified relay did not have a diode, the polarity of the connections to the relay coil made no difference - the relay functioned with either connection orientation. However, when a diode is present across the coil, for reverse EMF bleed off, it is important that the polarity of the normal connection provides reverse bias on the diode and not forward bias. The positive connection must be at the bar end of the diode (the silver band) which is opposite of the way diodes are used in many other applications. | *If the originally specified relay did not have a diode, the polarity of the connections to the relay coil made no difference - the relay functioned with either connection orientation. However, when a diode is present across the coil, for reverse EMF bleed off, it is important that the polarity of the normal connection provides reverse bias on the diode and not forward bias. The positive connection must be at the bar end of the diode (the silver band) which is opposite of the way diodes are used in many other applications. | ||
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| </ | </ | ||
| - | (This document may be of interest: | + | (This document may be of interest: |
