The New And Improved Unofficial R65 Forum V2
Technical Discussion => BMW Technical Q&A, Primarily R65 => Topic started by: marcmax on February 03, 2018, 08:53:44 PM
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I have an R65LS that I bought as a spare parts bike when I rebuilt mine. I didn't use enough of it to justice breaking it and selling it for parts but it is not enough to want to do a full restore. I am planning on making a bare bones bobber out of it (sorry purists). Only planning on a headlight and tail light, no turn signals. Might even sell the gearbox and buy a gearbox with a kicker and do away with the starter. The original wiring harness has been scavenged for pieces.
What I would like to know is what is the bare minimum I can get by with when building a new wiring harness. I don't even plan on running any gauges.
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I hear a lot of chatter about the Motogadget M unit for making wiring simple
https://bikebrewers.com/motogadget-m-unit-wiring/
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The kick starters aren't very robust
I have read the kick start shaft running thru the case is prone to bending and then starts to leak
Only good for emergency use
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Honestly there isn't much to the stock wiring as it was from the factory
It was grossly under fused
If you want to get rid of the following and live life on the edge
1 blinkers
2 tachometer assembly
3 neutral switch
4 headlight relay and use LED headlight bulb
5 extra unused terminal
Hopefully you understood the factory schematic
so I used it and deleted the non essential wiring
Remember the reason the factory print looks so complicated is because it is an assembly drawing showing the components and connectors all where they are in relation to each other
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Here is the way it mine is now wired
I have gone completely in the opposite direction that you want to go
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Thanks for all the input. I have heard nothing but negative comments about the kick start so that is a last resort for me. I am a fan of LED lighting so that is something I want to install. Keep in mind that this will not be a bike that I will do any distance on. It is being designed as something to do pub hopping on and will probably never see a highway speed. If I had more parts I would consider rebuilding it but at present it is a frame, wheels, motor and gearbox. I want to make something nasty, loud and obnoxious out of it. I an tired of rolling up behind a pedestrian, at idle, and startling them because I am so quiet.
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If you insist on a kick start maybe look at one of the old /5 4 sp boxes. Not sure if it would be a bolt-on mod but I can tell you from experience that the /5 kicker is very robust. I kicked mine more than used the starter due to being a po-boy who couldn't afford to buy a new battery every time the old one got weak...
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The 4-speed box would be a bolt-on for a pre-1980 R65. If fitting to a post 1980 model you would also need flywheel, clutch, pressure plate, throw-out bearing, push rod and arm.
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Tony, that was kinda what I was thinking but not 100% sure so I didn't want to spout off anything as "gospel."
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Tony, that was kinda what I was thinking but not 100% sure so I didn't want to spout off anything as "gospel."
I've shuffled 4 and 5 spd boxes on a /7 and have care and feeding of a pre and post 1980 R65, so I'm pretty sure.
I also wouldn't do it deliberately - I used the 4spd box as an emergency means of keeping myself on the road and I didn't like it much.
My opinion is that given the lack of torque in the R65 that it would be horrible to ride on a wide ratio 4spd and the only way I can think of to fix it would be to fit an R45 final drive.