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1961peter
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Joined: 02/28/2007
Posts: 23

Still sorting through my R62. Sorry, but lots of questions can't be answered by translating the parts book.

There is no horn switch fitted. Can some one explain how the switch fixes to the handlebars? There seems to be a switch and base described in the parts book, but what holds the base onto the handlebar.

I have had the lever throttle apart with its separate air and fuel levers. Is this really just the levers clamped between the lever body and top cap, or should there be a dished washer made of spring steel?
Previous British bikes I have owned have always had a dished washer to allow a bit of tension on the levers without having to tighten the top screw too much.

Thanks for any replies,

Peter.

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Peter Barnett

Darryl.Richman
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VBMWMO #6285
Surf City, USA (Santa Cruz, CA)
Joined: 10/27/2006
Posts: 2185
Horn button and lever throttle

The horn switch should be a part of the hi/lo beam switch, all of which is mounted with a band similar to the material that holds the magneto onto the engine.

My fuel/air and spark advance levers appear to be repops, so I don't know what the originals were like. Mine have no dished washers.

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1961peter
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Joined: 02/28/2007
Posts: 23
Horn button and lever throttle

Darryl,

Thanks for the reply.
My parts book suggests the head light dip switch is combined with the engine cutout
It also suggests the horn is a separate switch. The parts book indicates the horn switch fits onto a base but how is the base fixed to the handle bar?
I have looked on the Dreher and Oldtimer sites and see switches but not the method of fixing.
Anyone got any hints?

Regards,

Peter.

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Peter Barnett

Darryl.Richman
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VBMWMO #6285
Surf City, USA (Santa Cruz, CA)
Joined: 10/27/2006
Posts: 2185
Horn button and lever throttle

The parts book I have (a photocopy of) is labelled Ersatzteilliste und Taffeln fuer die BMW Kraftraeder R52 und R62. On page 16 is Tafel 5 "Lenker und Bowdenzuege", and shows part 665 "Bosch-Druckknopf zur Kurzschlussbetaetigung". This is the kill button. It mounts to a base plate (part 664) with two cylinder head screws (666).

The kill button is a separate unit because these bikes were available without any electrics, including horn and lights.

On page 24, Tafel 7 (Lichanlage D 2), is the headlight, with the attendant hi/lo switch (part 2851). This piece is attached to the right side of the handlebars, and acts as a base for the horn button, which is listed on page 52, Tafel15 (Sonderlieferungen) as parts 2911 (button), 2912 (base) and 2913 (two screws).

The kill button is mounted via two threaded holes in the left side of the handlebar. The horn button is mounted on top of the hi/lo switch with two screws. The whole unit is mounted to the handlebar with a small, brass colored metal band.

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bmwmyplace
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Australia
Joined: 02/26/2007
Posts: 168
Horn button and lever throttle

Hi Peter I think you will find that the levers are rack and pinnion type and therefore dont rely on purely friction to hold the lever open so no friction washers like the english stuff

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