BMW R25/3 Zundspule again

Begonnen von Goahead, 04 Juli 2016, 20:03:47

« vorheriges - nächstes »

0 Mitglieder und 1 Gast betrachten dieses Thema.

Goahead

Hallo alle zusammen,

sorry ich Deutsch nicht sprechen.
Ich habe dies in Ingles Forum gepostet, aber es ist nicht sehr aktiv.
http://www.bmw-einzylinder.de/boxerforum/index.php?topic=1037.0
Vielleicht können Sie mir helfen, Jungs :)

.............

Hi Everyone

Yesterday (Sunday) i took the R25/3 1954 for a motorcycle gathering, but unfortunately, bike just died 30Km after the journey started...it was a very hot day here in PT...and engine case and gearbox were hot to the touch...(probably around 40-50C i would say)
Everything seemed right, gas, compression, etc etc but almost no spark (or none).I always thought that i had a weak spark in could, and the coil seems to be from the 50s.(wire leaving coil to spark plug is still tin soldered...old style)
After trying several things, i had to give up the ride and call for the trailer pick-up.
The beautiful journey with my 300 "friends" riding old bikes...ended. Bmw R25/3 being the worst bike in the all group :)
Next time i will catch them.

So...my question.  Since "original" ignition coils are expensive (the ones that fit inside the housing) and they will continue to suffer from heat, i was wondering if i could take the 2 wires (one from points and the other from rectifier/regulator) to the outside, and put a cheaper ignition coil bellow the gas tank.

Is this possible and reliable?
Any 6V coil will do?






I know that the bike will look a bit different from original (coil below tank), but i can maybe start to run the bike safer without coil issues.
50Km non stop would be a good goal :)

Please advise.

Kind regards
Goahead





rolf

Hallo,
"original coil will suffer from heat"......yes, after 40-60 Years, I only drive original inside coils, I don't like the others

"Expensive"?....roundabout 50-60 €

The coils you show are really for battery ignition? It seems more for magnetic ignition.

Greetings
Rolf

rolf

This last post is double post...ignore it.

Similar topics (5)

Hauptmenü

Startseite Baureihe Vergleichsliste Specials Anleitungen & Bücher

Presse & Wissen

Historisches Liste der BMW Modelle Bauzeiten & Stückzahlen Prospekte & Plakate Presseberichte

Tipps & Service

Tipps Händler Dienstleister Märkte & Museen Verschleißteile & Werkzeuge

Foren & Literatur

Bildtafel-Suche Forum: Einzylinder Bildergalerie Servicedaten Handbücher

Allgemeine Infos

Kontakt Sitemap Glossar Impressum Bildtafelsuche