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by schrader7032
Sat Mar 16, 2024 4:51 pm
Forum: Vintage (1948-1969) Motorcycles
Topic: 1969 R69S Advice to a new comer
Replies: 15
Views: 873

Re: 1969 R69S Advice to a new comer

So last time it ran was 1988? Looks like the last registration was 1978/1979. Hmmm....

I agree it's easily worth the $4K, so you might not lose in the end if you decide to resell it. Some custom things such as seats. Nice add-on with the guard around the rear tail light.
by schrader7032
Wed Mar 13, 2024 4:55 pm
Forum: Forum Issues
Topic: FORUM SLOWNESS
Replies: 4
Views: 340

Re: FORUM SLOWNESS

I'm having no issues.
by schrader7032
Tue Mar 12, 2024 1:58 pm
Forum: Vintage (1948-1969) Motorcycles
Topic: '68 R69s base gasket ??
Replies: 14
Views: 580

Re: '68 R69s base gasket ??

Something for consideration... On my /7, I replaced the original top end with a kit from Siebenrock. The stock compression went up from around 9.0:1 to about 9.5:1 with the kit. I was a little uncomfortable with that high of a compression ratio...I didn't want to consider dual plugging, etc. The sup...
by schrader7032
Tue Mar 12, 2024 12:43 pm
Forum: Vintage (1948-1969) Motorcycles
Topic: 1965 R50/2 - run-in advice wanted
Replies: 17
Views: 647

Re: 1965 R50/2 - run-in advice wanted

If your pan is steel, the magnets will simply latch on to the pan. As for Kieth Patchett's suggestions, I personally would not do the ride keeping the engine at 5000 RPM...or whatever RPM you wanted. The engine and components are all very mechanical and they will have vibration interactions with eac...
by schrader7032
Tue Mar 12, 2024 9:28 am
Forum: Vintage (1948-1969) Motorcycles
Topic: 1965 R50/2 - run-in advice wanted
Replies: 17
Views: 647

Re: 1965 R50/2 - run-in advice wanted

I don't think the strainer is going to get all that clogged. I don't remember but I guess I pulled the pan off at least once, maybe at 500 miles. I would fit a number of super magnets in the bottom of the pan to collect any of the ferrous bits that show up.
by schrader7032
Tue Mar 12, 2024 8:44 am
Forum: Vintage (1948-1969) Motorcycles
Topic: 1965 R50/2 - run-in advice wanted
Replies: 17
Views: 647

Re: 1965 R50/2 - run-in advice wanted

Welcome to the forum and enjoy the ride! Generally, the BMW manual is good info. I suppose if you ask 5 owners how to break in an engine, you'll get 7 different answers!! My thoughts are: - the first engine start after rebuild is probably the most critical. Once the oil begins to glaze up on the cyl...
by schrader7032
Tue Mar 12, 2024 6:10 am
Forum: Vintage (1948-1969) Motorcycles
Topic: '68 R69s base gasket ??
Replies: 14
Views: 580

Re: '68 R69s base gasket ??

On my R69S rebuild I used 0.5mm gaskets.
by schrader7032
Mon Mar 11, 2024 12:39 pm
Forum: Vintage (1948-1969) Motorcycles
Topic: Abracadabra: White rubber disk on drive shaft bell disappeared
Replies: 7
Views: 316

Re: Abracadabra: White rubber disk on drive shaft bell disappeared

The small donut departed my R25/2 shaft a number of years ago. I bought a replacement, but haven't gotten around to putting it on...technically, it has to be pressed on once the shaft is disassembled. I decided to try a small plastic ring from a juice container...cut a slit and slipped it over. Prob...
by schrader7032
Sun Mar 10, 2024 3:50 pm
Forum: Classic (1970-25 years ago) Motorcycles
Topic: What model is this speedo for ?
Replies: 9
Views: 216

Re: What model is this speedo for ?

Be sure and use the search boxes Snowbum has all over the tech page. I put in "speedometer" and the page in question is the second one in the list.
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: 216

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