orangem2 Posted October 23 Posted October 23 Whoever at Moto Guzzi that designed the wire harness and thought multiple pos and neg wires to the battery was a GREAT idea should be made to remove and install a battery on a V11 for 10 years straight. What a complete joke for a bike made in 2004. No wonder these bikes have so many troublesome elec problems. Got to be a better way... rant over. 2
audiomick Posted October 23 Posted October 23 2 minutes ago, orangem2 said: ... multiple pos and neg wires to the battery... Are you sure they are all original? Going by memory of what I found on mine, maximum 2 on each pole seems to be original. Mine has more than that, but there have been some "improvements" made to the electricals. 1
docc Posted October 23 Posted October 23 Yah, the terminal stacks are abominations. My "solution" . . . 3
docc Posted October 23 Posted October 23 52 minutes ago, orangem2 said: hey DOCC... what busbars are they? I built the copper bus/connection panels from 16 ounce copper roofing material "Similar" Terminal Connectors from Amazon . . . 2
MartyNZ Posted October 24 Posted October 24 (edited) Another way to ease connections to the battery is this: https://www.v11lemans.com/forums/topic/19319-what-did-you-do-to-your-v11-today/?do=findComment&comment=270297 This leaves only 2 connections on each battery post, and keeps the original terminal sizes. +ve to starter & terminal block, -ve to ground and terminal block. Edited October 24 by MartyNZ 6
Weegie Posted October 24 Posted October 24 That's what I was going to suggest Extend aditional pos connections down to the starter 2
Pressureangle Posted October 24 Posted October 24 @orangem2 is right, this is all so awful Now I get to choose between kludges or make up a new one. Meh. Oh and pack in startus interruptus as well Well, today was wiring harness day anyway we'll see what evolves. 1
docc Posted October 24 Posted October 24 1 hour ago, Pressureangle said: @orangem2 is right, this is all so awful Now I get to choose between kludges or make up a new one. Meh. Oh and pack in startus interruptus as well Well, today was wiring harness day anyway we'll see what evolves. I think it's important to note that Startus Interuptus, benefiting from an additional start relay, is applicable to the later V11 wiring, but not the early Sports that already use Relay#1 and Relay#2 to start ( instead of relying on the ignition switch). Certainly, the matter of using the very best, high (continuous) current relays is good practice across the range. 1 1
Pressureangle Posted October 24 Posted October 24 5 minutes ago, docc said: I think it's important to note that Startus Interuptus, benefiting from an additional start relay, is applicable to the later V11 wiring, but not the early Sports that already use Relay#1 and Relay#2 to start ( instead of relying on the ignition switch). Certainly, the matter of using the very best, high (continuous) current relays is good practice across the range. Er... did they remove a relay in the later production? Shoot, where did I leave that schematic... since this thing has over 60k on it with stock relays and unmolested harness (except for the regulator/wiring) I'll have to have a close look at it. 1
orangem2 Posted October 24 Author Posted October 24 So... The Motobatt does not fit Too wide front to back and hits the seat So Odyssey pc545 on the way 2
docc Posted October 24 Posted October 24 3 hours ago, Pressureangle said: Er... did they remove a relay in the later production? Shoot, where did I leave that schematic... since this thing has over 60k on it with stock relays and unmolested harness (except for the regulator/wiring) I'll have to have a close look at it. Same five relays, wiring changed. Something to do with bypassing the relay and using the ignition switch, instead. I'm over simplifying pretty heavily, there. 2
audiomick Posted October 24 Posted October 24 7 hours ago, docc said: Same five relays, ... bypassing the relay and using the ignition switch, instead. ... Inspired by @docc's post, I've just spent some time comparing wiring diagramms In this workshop book: https://guzzitek.org/gb/ma_us_uk/1100/V11_1999-2003_Atelier(Compil-GB-D-NL).pdf referring to the diagramm for the earlier models on page 364, and the one for the later models on page 459. Some time back, I made a sketch of the starter circuit "extracted" from the diagram for the later models on page 459. Since it is still in my gallery, here it is again: On that, one can see that fuse #5 is feeding the lighting circuit, i.e. the "working power" side of the lighting relay. The "working power" (as opposed to the "switching power") of the starter relay, Relay #1 on my drawing, comes through the ignition switch. On the earlier version, assuming I've read the diagramm correctly, fuse #5 supplies working power to the starter relay directly, and the working power for the lighting relay comes off 87a on the starter relay. So as far as that goes, I'm assuming that Luigi chose better lights in the later version over solid working power for the starter relay. Also, fuse #8 on the earlier version is used for something that is called "safety electrical solenoid", the purpose of which I can't fathom. Fuse #8 is not used on the later model. And further to that, there are two relays associated with the ECU, 46: Injection relay and 49: ECU relay, and also 48: protection diode.. On the diagram for the earlier version, the numbers are smudged, and I can't tell if those relays have just moved around on the diagram, or if the wiring is substantially different. My concentration is waning, and I can't figure out what is going on there. 1
docc Posted October 24 Posted October 24 Yes, the earlier V11 wiring uses the relays to start. The later generation runs the power all the way to the ignition switch and back allowing for Startus Interuptus as that circuit and its connections degrade. The ECU and Fuel/Ignition relays remain unchanged. The very back fuse (#8), on the early V11 was for the electric fuel petcock that reverted to a manual petcock on later V11. I found it's a great place to wire in a Go_Winkie . . . 1 1
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