Vintage BMW Motorcycle Owners

Thanks for the offer to test my R27 generator with the Growler. i'm waiting to get it back from a local shop that could not find where the fault lays.
I'll contact you after I check something else myself.

Thanks again, Will

IS THERE A METHOD TO BENCH TEST THE BOSCH GENERATOR ? ( REGULATOR IS NEW )
IS THERE SOMEWHERE WHERE IT CAN BE SENT TO FOR TESTING ?
THANKS, WILL

thanks Kurt. info appreciated !

THE MYSTERY FOR ME IS... HOW THE POSITION OF THE CARB NEEDLE, WHICH HAS FOUR HOLES NEAR THE TOP, IS DETERMINED. THE WIRE CLIP PASSES THROUGH A HOLE IN THE SLIDE AND THE CORRECT HOLE IN THE NEEDLE. THE SERVICE MANUAL THAT I HAVE SHOWS IN THE SPECS " NEEDLE POSITION 2". IS THAT SECOND FROM T...

WELL, I JUST TESTED MY R27 COIL. IT LOOKS LIKE I NEED A NEW COIL. TESTING WITH A MULTIMETER, I FOUND 2.0 OHMS BETWEEN THE + AND - TERMINALS, 6.86 K OHMS BETWEEN THE +TERMINAL AND THE HI-TENSION CONNECTION, AND 6.86 K OHMS BETWEEN THE - TERMINAL AND THE HI-TENSION CONNECTION. I HOPE THE NEW COIL WILL...

thanks for the input,
the float is brass, and i have worked with the idle mixture screw, tried 1.5 turns out and 2.0 turns out. i'm getting into the float bowl today, we'll see what's up and i'll report results. thanks for the ideas.
Will

thanks for the info, the float is new as of 3 years ago and has seen only a few miles, but i am going to get into the float chamber to see if any thing unusual is happening. but, it's starting to get me thinking it is spark related, I've replaced the condenser, spark plug, idle jet, main jet, points...

thanks, the clip was in the top hole in the needle when i pulled the slide, i moved it to the second hole and that may be a little better for the idle, but it will still stall after idling for a while. i noticed that the idle speed will increase if i lean the bike to the left, and decrease if leaned...

HOW TO DETERMINE WHICH HOLE IN THE NEEDLE OF AN R 27 BING CARB THAT THE CLIP SHOULD BE IN ?
I KNOW THAT THE NEEDLE GOVERNS THE MID RANGE, BUT MINE IS IN THE TOP HOLE AND I THINK IT MAY BE CAUSING A LEAN MISS AT IDLE ONLY. OPINIONS ???
THANKS, WILL

I HAVE AN R27 IGNITION COIL THAT IS SUSPECT. IS THERE A WAY TO TEST THE COIL WITH IT OFF OF THE BIKE ?
THANKS, WILL