Newbie here

[montmil]

Do I really have to take all that stuff apart to replace the Hall sensor inside the bean can?

Yes.

[Bob_Roller]

If you order the sensors, order a few extra, if you have an oilhead bike, the same sensors are used in that ignition system as well .

The sensor number is Honeywell 2AV54, about $14US each from Newark Electronics .

http://newark.com/honeywell-s-c/2av54/hall-effect-magnetic-sensor/dp/96F1986?Ntt=2av54

There is another option, Motorrad Elektrik, has a replacement 'beancan', that does away with the mechanical advance, it's $300US .

http://www.motoelekt.com/alpha.htm

[darrylri]

Do I really have to take all that stuff apart to replace the Hall sensor inside the bean can?

Yes.

Yeah, I thought so.  I downloaded that article and read through it last night.  I need to clear off my bench and get my camera ready.

If you order the sensors, order a few extra, if you have an oilhead bike, the same sensors are used in that ignition system as well .

The sensor number is Honeywell 2AV54, about $14US each from Newark Electronics .

http://newark.com/honeywell-s-c/2av54/hall-effect-magnetic-sensor/dp/96F1986?Ntt=2av54

A google search showed another source selling it for just over $13.  And I do have an oilhead, so maybe I will get two, they are cheap.

I need to read up on what the reassembly and re-timing procedure is like.

There is another option, Motorrad Elektrik, has a replacement 'beancan', that does away with the mechanical advance, it's $300US .

http://www.motoelekt.com/alpha.htm

While I'm not philosophically against the upgrade -- several of my older bikes have electronic voltage regulators hiding under their covers, for example -- I know I'm going to be spending more money on this bike and could easily get way past what it's worth.  I'll keep this option in reserve for when I've totally screwed up the bean can.

Besides, the clock and the volt meter on my R90S both decided to get flakey in the last couple months, and that's going to weigh on the budget, too.  (The R90S clock already has the later quartz movement inside, which is supposed to last a long time... but this one didn't.)

[Bob_Roller]

Unless you have a 'donor' assembly to rob parts from, the only parts available, are the centrifugal advance springs, so if you break something, you're going to be up that creek,without a paddle .

Also, the oilheads use two sensors, not one .

[montmil]

You'll need snap-ring pliers to service the bean can; inner and outer rings hide inside. Small tips required: a straight pair and an angled pair. Otherwise, you probably have all the other tools needed.

Also, I found same-sized replacement snappers at my local Ace Hardware & BMW Parts Emporium.

Patience. Do not force anything. Clean as needed and lube the advance mechanism. Done.

Darryl sez, While I'm not philosophically against the upgrade -- several of my older bikes have electronic voltage regulators hiding under their covers, for example -- I know I'm going to be spending more money on this bike and could easily get way past what it's worth.

Way, way too late for me on this point!

Monte

[darrylri]

You'll need snap-ring pliers to service the bean can; inner and outer rings hide inside. Small tips required: a straight pair and an angled pair. Otherwise, you probably have all the other tools needed.

Thanks, I have those already.  The only tool I'm lacking is skill.

Also, I found same-sized replacement snappers at my local Ace Hardware & BMW Parts Emporium.

Patience. Do not force anything. Clean as needed and lube the advance mechanism. Done.

Can this really be any more difficult than working on a Bosch D2B magneto/generator?  http://www.histor.ws/dmag/index.htm

Darryl sez, While I'm not philosophically against the upgrade -- several of my older bikes have electronic voltage regulators hiding under their covers, for example -- I know I'm going to be spending more money on this bike and could easily get way past what it's worth.

Way, way too late for me on this point!

Monte

Yeah, I know how that is.  I am still underwater on my R12, even after owning it for a dozen years and the recent runup in vintage BMW prices.    And it still doesn't run, so I'm not even getting to enjoy it!

[darrylri]

Ok, finally, some pix!

Right side:


Left:


Here's the messed up headlight area:


Remember, this is actually 169662:


I did all the easy stuff with regards to the dead Hall sensor today -- I took it apart.  But I'm going to start another thread to discuss that.

[Melena]

 Welcome Darryl!  

Santa Cruz isn't too far from me up here in Windsor in Sonoma County.  You've got a good shop down in that area at Ted Porter's.  But with as many bikes as you have I'm sure you do all your own work.  Great stable you have there.

As you can see, there are lots of folks here with lots of good info.

[darrylri]

Welcome Darryl!  

Santa Cruz isn't too far from me up here in Windsor in Sonoma County.  You've got a good shop down in that area at Ted Porter's.  But with as many bikes as you have I'm sure you do all your own work.  Great stable you have there.

As you can see, there are lots of folks here with lots of good info.

Thanks, Melena!

Actually, Ted's shop is 6 miles from me, and I go there often.  My modern bike is there now, getting fixed from deer hunting, and when they finish with it, I'm going to trade them my R90S so it can get it's 60k service.  

It's true that I do the work on my older bikes, but that 's in large part because there's nobody around that can do it for me.  I really enjoy riding much more than wrenching, but I can do the wrenching if necessary.

As far as the folks here go, I have been treated wonderfully well!  Hopefully I will get my R65 going soon, and then will have to make up my mind about what else I should do with it.  I have already ordered up a couple of carb rebuild kits, and I think I'm going to get to know the front brakes much more intimately as well.