Vintage BMW Motorcycle Owners

C.K

Hi
looking to buy used part like this for R51/2.

C.K

install the original it will last forever
clearance of 0.1 up 0.8 its ok.

C.K

No one ever restored a BMW bike over here ?
Or maybe had something to do or to fix on the transmission or speedo drive gear ?

Micha I sent you a message.

C.K

Its ok in general. How many miles on it?

C.K

Have new field coil now .dynamo work perfect.
old coil was in very bad shape.

C.K

Well it doesn't look poor at all. Just ride on it.

C.K

Well it looks similar to the magneto front sealing plate spring.

C.K

well I did this test with 6v battery and its turning.
I think the problem is the coil .
I measured 6 ohms on DF and 2.9 on D+

C.K

Hi
I restored d2b magneto/dynamo and have no current on the output wire .
armature ok ,new brushes. also repolarize with 6v battery.
what is the range of resistance for the two coil field?

C.K

Micha
The thread is to prevent from the oil go into the spindle when its rotate,
the spacer is get tighten when you insert the wheel spindle and tight it with the nut.

Vintage BMW Motorcycle Owners

Search found 148 matches

R51/2 HORN SWITCH

Re: Valve guide clearance R12?

speedometer drive

Its ok.

Have new field coil now

Well it doesn't look poor at

Well it looks similar to the

well I did this test with 6v

R12 generator problem

Micha The thread is to