Search found 28 matches

by cbclemmens
Sat Dec 04, 2021 12:59 pm
Forum: Tools, Tips and Techniques
Topic: Removing old stubborn head gasket material.
Replies: 9
Views: 2467

Re: Removing old stubborn head gasket material.

Most oven cleaners contain lye, Sodium Hydroxide. That can dissolve Aluminum. Not a good idea.

Craig
by cbclemmens
Wed Dec 01, 2021 12:45 pm
Forum: Tools, Tips and Techniques
Topic: Cleaning the engine, transmission and final drive
Replies: 33
Views: 11745

Re: Cleaning the engine, transmission and final drive

What ever you do don't use a wire wheel in an electric drill. It ruins the original matt finish.
That is a lesson that I learned the hard way.
by cbclemmens
Wed Dec 01, 2021 12:30 pm
Forum: Classic (1970-25 years ago) Motorcycles
Topic: 1st BMW
Replies: 3
Views: 349

Re: 1st BMW

That bike looks almost identical to my first BMW, an R 75/5 which I bought new in 1972. The seat looks like it's an after-market seat and appears to be much more comfortable than the original.

I hope you enjoy that bike as much as I enjoy mine.
by cbclemmens
Wed Dec 01, 2021 12:10 pm
Forum: Classic (1970-25 years ago) Motorcycles
Topic: 73 R75/5 tires
Replies: 6
Views: 548

Re: 73 R75/5 tires

Check the on-line bike shops. I found a Continental 4.00X18 tire for the rear. Grip was really good but it only lasted 4,000 miles.

Craig
by cbclemmens
Mon Nov 22, 2021 1:28 pm
Forum: Tools, Tips and Techniques
Topic: Removing old stubborn head gasket material.
Replies: 9
Views: 2467

Re: Removing old stubborn head gasket material.

Walmart sells a scraper that is perfect for this job. It has a wide razorblade scraper blade. Just keep it flat and dont push too hard.

Craig
by cbclemmens
Mon Nov 22, 2021 1:02 pm
Forum: Conversions (All Topics on Conversion Bikes)
Topic: My R69S Conversion
Replies: 2
Views: 2638

Re: My R69S Conversion

You should be able to rent an automotive engine hoist for a few bucks a day. At my age (73) I have learned to let equipment do the heavy lifting. It reduces the potential for damage to both the equipment and my body.

Craig
by cbclemmens
Mon Nov 22, 2021 11:04 am
Forum: Classic (1970-25 years ago) Motorcycles
Topic: 77 RS clutch slipping
Replies: 26
Views: 1630

Re: 77 RS clutch slipping

Did you resurface the flywheel? A glazed surface on the flywheel can cause the clutch to slip when everything else is good.

Craig
by cbclemmens
Thu Nov 18, 2021 10:16 am
Forum: Classic (1970-25 years ago) Motorcycles
Topic: Low oil pressure - im looking for clues
Replies: 37
Views: 2692

Re: Low oil pressure - im looking for clues

You did not mention the viscosity of the oil you are running. I run fully synthetic 20W-50 in all 3 of my airheads. If you are running lower viscosity that may be the source of your "low" pressure - although it's not all that low. I think the light comes on at about 7 psi. I don't know the answer to...
by cbclemmens
Mon Nov 15, 2021 11:37 am
Forum: Classic (1970-25 years ago) Motorcycles
Topic: Wiring questions for /6.
Replies: 7
Views: 1693

Re: Wiring questions for /6.

Brett;

I applaud your clever solution.

Craig
by cbclemmens
Fri Nov 05, 2021 2:13 pm
Forum: Classic (1970-25 years ago) Motorcycles
Topic: New to me R90/6
Replies: 7
Views: 1261

Re: New to me R90/6

Sorry - That photo was really washed out. This one should be more visible. Notice that the brake light switch is on the lever in front of the master cylinder. BTW the color code of green and red to the light, red and black to power is the same on my '71 R 75/5 so I think it would be the same on your...