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Just bought a R/80 at estate auction
Re: Just bought a R/80 at estate auction
- schrader7032
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Re: Just bought a R/80 at estate auction
https://www.realoem.com/bmw/enUS/showpa ... Id=12_0741
'78 R100/7 '69 R69S '52 R25/2
Fast. Neat. Average. Friendly. Good. Good.
- srankin
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- Location: Spencerport, NY USA
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Re: Just bought a R/80 at estate auction
So yes, your bike could have been built and sold in 79 but is marked a 80 year bike. LOL, just confuses things for us for no good reason. St.
Re: Just bought a R/80 at estate auction
That’s the confusing thing. The diagram you linked to listed is not what I have. That diagram has a single screw cap, and points. Mine has two screws which corresponds to a later style electronic. I posted a pic a few day ago.
I’ll get the engine casting number tomorrow. It might be a replacement engine?
- srankin
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Re: Just bought a R/80 at estate auction
IF it is a true electronic ignition system either factory or replacement (Wedgetail the new company uses very distinct parts) Alpha system, there will be an ignition module located somewhere. On the factory OM systems the module is mounted directly under the gas tank and can't be missed. On the after market systems the installer was given a choice of places to mount the module. As I said on my 78, I mounted mine using the two Gas tank hold down studs or just over the top of the air cleaner.
LOL, if you have electronic ignition great! If not, so sad, points suck and are old tech. St.
- schrader7032
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Re: Just bought a R/80 at estate auction
'78 R100/7 '69 R69S '52 R25/2
Fast. Neat. Average. Friendly. Good. Good.
- srankin
- Posts: 1085
- Joined: Fri Jul 14, 2017 8:45 pm
- Location: Spencerport, NY USA
- Been thanked: 21 times
Re: Just bought a R/80 at estate auction
From my experience with installing my Wedgtail system, all of the 81 and newer factory wiring could be used to upgrade older bikes without a lot of muss or fuss. At least the 79 and 80 bikes.
For the 78 and older bikes, I know but can't be certain the cam is different as it has the advance weights and points mounted differently. LOL, I am too lazy to look on a microfiche. I do not believe bean cans with points or without can be mounted on bikes older than 78. A look at a microfiche would confirm this. St.
Re: Just bought a R/80 at estate auction
Two things confused me. First was the bean can has 2 cap screws, and according to the Manual those were electronic. The single screw were points.
Secondly, there is, or was, a module zip tied under the tank just in front of the coils. Turns out it was a Cobra alarm, lots a wires and a second horn. I say “was” because it’s gone.
I pulled the (stuck) cap and lo and behold ….points!
I have a carb rebuild kit arriving tomorrow and the carb bodies have been cleaned. Next will be to check valve gaps.
Apologies for leading us down a rabbit hole!
- srankin
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Re: Just bought a R/80 at estate auction
LOL, I had a friend buy a bike with an alarm installed and honest to god it looked like a bundle of jumping snakes. The previous owner had cobbled it into the ignition system for some reason and there it failed causing running problems. Luckily it did not take a whole lot of effort to remove and restore the OM wiring.
Rambling, sorry, Cheers, St.