1983 BMW R100

[Sandy White]

Let us know about the mini tech day as I would love to come depending on
where.
I have a 69 r60/2 and would love added pointers, even though you all seem
to be discussing post 1970's machines. Always learning.

Thanks,
Sandy in winchester

On Sun, Oct 11, 2020 at 3:19 PM NICHOLAS STOKES via VAAirheads <
vaairheads at casano.com> wrote:

> Great news Eric.
>
> Last Thursday we set the valves and after swapping out the faulty diode
> board (bad diode),  got about 13.5v at 3K RPM with both the mechanical and
> an electronic regulator, we found no fire on the RH cylinder when trying to
> do a carb synch.  Swapping wires, plugs and coils and a shot of brake-kleen
> in the intake did not result in any fire.  Running out of time and hoping
> to avoid rush hour traffic stopped us at the point of removing the carb.
> We did put anti-seize on the exhaust nuts which were thankfully not seized
> and lubed the throttle grip which was pretty well gummed up.
>
> There is a need to get some solid mounts for the diode board for better
> grounding and to replace a broken rubber mount.  I will return in about a
> week with my carb stick, compression tester and timing light to get it
> tuned up along with a grease gun for the swing arm bushings.  For future
> work we may want to look to a day at my shop for a clutch spline lube, and
> possible tire change.  A mini tech-day sounds like fun.
>
> Nick Stokes
> Yorktown
>
> > On Oct 11, 2020, at 9:36 AM, Zwicky, Eric <ezwicky2 at gmail.com> wrote:
> >
> > Hey all, Yesterday afternoon I gave Mike a set of O-rings
> > I had extra.    He's going to drop the bowl on the right carb and
> replace the O-rings on the idle jet, idle-mixture screw, and the main jet
> stack, and spray everything thoroughly with carb cleaner.
> >
> > If that doesn't solve the problem, I'll help him take apart the rest of
> the carb and clean it, as well as replace the throttle-shaft and enrichener
> O-rings, and whatever else needs attention.
> >
> > BTW when I got to his garage on Friday to take a look, the bike had fire
> on the (externally-grounded) right plug, and we could see gas getting to
> the carb (clear fuel line).   But it would only run on the left cylinder,
> us deducing this by feeling the puffs of cold air from the right exhaust.
>   But with the enrichener engaged, the bike would actually fire on that
> side, albeit roughly, which pointed us to the carb as the culprit.
> >
> > Mike's a bit daunted at the prospect of completely disassembling the
> carb(s), so he wants to do this less-invasive cleaning / restoration
> first.  My time is more limited, so he's going to try this first and then
> if needed I'll help him with complete disassembly and rebuilding.
> >
> > Eric Zwicky
> > Richmond
> >
> >
> >
> > On 10/11/2020 2:11 AM, Charlie Smith wrote:
> >> Mike,
> >>   A good cleaning and a few new parts are WAY Cheaper than a new (or
> even used ) set of carbs!! Let's see what the folks on the list have to say.
> >> Charlie #13
> >> ----- Original Message -----
> >> From: Mike Slavin <mkslvn5 at gmail.com>
> >> To: Charlie Smith <bmwcharlie at embarqmail.com>
> >> Sent: Sat, 10 Oct 2020 14:40:43 -0400 (EDT)
> >> Subject: Re: 1983 BMW R100
> >> Charlie,
> >> I didn’t think about this possibility when I sent the last email to
> you, but it might be cheaper and easier just to buy a set of bing 40
> carburetors in good condition.
> >> What are your thoughts?
> >> Mike
> >> Sent from my iPhone
> >>> On Oct 10, 2020, at 2:20 PM, Mike Slavin <mkslvn5 at gmail.com> wrote:
> >>>
> >>> Charlie
> >>> The new diode board solved my electrical problem. Yah! Unfortunately,
> the right cylinder is not running. I have spark and I think compression (I
> can feel air coming out of the spark plug hole). By taking the float baowls
> off I can tell that there is a lot of trash in the carburetors. I know I
> need to get my carburetors cleaned and possibly rebuilt. I don’t think I
> will need the full rebuild, but certainly diaphragms and some O-rings and
> some gaskets. Is there somebody affordable that I could send the carbs too
> for a clean/rebuild? Please let me know what you think. All the guys that
> you put me in touch with have been incredibly helpful and nice. The sense
> of community and fellowship is amazing. Thanks again for all of your help!
> >>> Mike
> >>> 804-405-9535
> >>>
> >>>
> >>> Sent from my iPhone
>
>
>
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