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Search found 8809 matches

by schrader7032
Sun Mar 10, 2024 6:12 am
Forum: Classic (1970-25 years ago) Motorcycles
Topic: What model is this speedo for ?
Replies: 9
Views: 221

Re: What model is this speedo for ?

Snowbum's table on this page suggests it's for a R90/6 in the mid 1970s. Should be paired with a 34/11 final drive.

https://bmwmotorcycletech.info/ringgears.htm
by schrader7032
Fri Mar 08, 2024 3:21 pm
Forum: Vintage (1948-1969) Motorcycles
Topic: Engine won't shut off
Replies: 1
Views: 100

Re: Engine won't shut off

Check out this post by Vech in the recent past: https://vintagebmw.org/forum/viewtopic.php?p=84990#p84990 I have had this problem for a while...I have a fairing on so not so easy to get to the headlight shell to check things out. What I do is when I'm close to my driveway and the end of the ride, I ...
by schrader7032
Mon Feb 26, 2024 7:22 am
Forum: Vintage (1948-1969) Motorcycles
Topic: R27 Cold Start Nightmare
Replies: 30
Views: 12271

Re: R27 Cold Start Nightmare

My R69S seems to be harder to start warm like after a gas stop. What I do is to leave the petcock off and open the throttle wide open. I then kick the lever 5-6 times to clear the combustion chamber. Finally, leaving the petcock off, and hand off the throttle, I push the key down and then kick the s...
by schrader7032
Sun Feb 25, 2024 11:06 am
Forum: Classic (1970-25 years ago) Motorcycles
Topic: final drive / drive shaft
Replies: 3
Views: 1148

Re: final drive / drive shaft

The final drive would need to be properly shimmed if you take it apart. I'd just leave as is and see how it performs. Be sure to clean and lube the wheel splines.
by schrader7032
Fri Feb 23, 2024 8:07 pm
Forum: Classic (1970-25 years ago) Motorcycles
Topic: Master cylinder feeler gauge
Replies: 2
Views: 249

Re: Master cylinder feeler gauge

Snowbum has a pictre of the tool on this page:

https://bmwmotorcycletech.info/brakes.htm

In the end a regular feeler gage can be used. But if you want a perfect tool kit, get the tool. And thanks for the info about finding a replacement tool! :)
by schrader7032
Fri Feb 23, 2024 3:55 pm
Forum: Classic (1970-25 years ago) Motorcycles
Topic: Coil question
Replies: 5
Views: 263

Re: Coil question

OK. But for a typical /5, the resistances for the wires/caps are 1K each and each coil is about 20K each. Total around 22K.
by schrader7032
Fri Feb 23, 2024 3:41 pm
Forum: Classic (1970-25 years ago) Motorcycles
Topic: Coil question
Replies: 5
Views: 263

Re: Coil question

36k ohms seems high. High resistance will impede current flow, maybe weak spark? Measure resistance of each wire individually. Is there corrosion built up inside the coil towers?
by schrader7032
Fri Feb 23, 2024 2:46 pm
Forum: Classic (1970-25 years ago) Motorcycles
Topic: Coil question
Replies: 5
Views: 263

Re: Coil question

What do your coils/wires test for resistance? That would be helpful to know.
by schrader7032
Fri Feb 23, 2024 1:51 pm
Forum: Classic (1970-25 years ago) Motorcycles
Topic: side cover color on /5
Replies: 4
Views: 221

Re: side cover color on /5

Some pictures here of /5s, with and without side covers.

http://www.bmbikes.co.uk/photopages/photosr75-5.htm
by schrader7032
Thu Feb 22, 2024 3:30 pm
Forum: Classic (1970-25 years ago) Motorcycles
Topic: R60/5 won’t start has spark
Replies: 36
Views: 7615

Re: R60/5 won’t start has spark

I'm a little confused about the resistance readings. They should be kilo ohms not just ohms. Please describe how you're doing the testing.