Search found 490 matches

by barryh
Thu Apr 19, 2018 5:10 am
Forum: Post 1970 Airheads
Topic: Heard of this product?
Replies: 3
Views: 93

Re: Heard of this product?

Yes, I use to lube the caliper pistons and it stops them seizing up.
by barryh
Tue Mar 20, 2018 4:33 am
Forum: Post 1970 Airheads
Topic: Front snowflake bearing 1982 R100
Replies: 2
Views: 197

Re: Front snowflake bearing 1982 R100

It may just need the pre-load adjusting but inspection, clean and re-grease before hand is the minimum that should be done. There is no short and quick guidance on how to do this. Take a look here: http://w6rec.com/bmw-motorcycle-wheel-bearings-1956-through-84-repair-preload-and-spun-hubs/ or here h...
by barryh
Wed Mar 07, 2018 11:20 am
Forum: Post 1970 Airheads
Topic: Frame repair.
Replies: 15
Views: 911

Re: Frame repair.

Pinned frames were drilled through the lug and tube as they sat on a mockup jig and pins (nails) inserted into the holes. The pins would usually have 1/4" or so sitting inside the tube. A lot of older frames were pinned--like from 1980 and before. Different builders have different favorite rod. Low...
by barryh
Wed Mar 07, 2018 5:09 am
Forum: Post 1970 Airheads
Topic: Frame repair.
Replies: 15
Views: 911

Re: Frame repair.

So I get the principle that you can't use excessive heat on cold drawn tubing without weakening it. But just how much heat can you use. If brazing is OK then it must still be in the region of 650 - 800 C. I have a friend who is contemplating repairing a bicycle frame built with 531 tube and brazed l...
by barryh
Fri Mar 02, 2018 5:19 am
Forum: Post 1970 Airheads
Topic: R75/5 choke stopped working
Replies: 19
Views: 1128

Re: R75/5 choke stopped working

Additionally, the cable housings screw into the holding cups at th elever AND at the carb end This was a puzzle to me when I first got an airhead. When you attempt to use the cable adjuster at the carb end in the normal way you can only use the lock nuts as turning the adjust cup itself will unscre...
by barryh
Tue Feb 27, 2018 4:50 am
Forum: Post 1970 Airheads
Topic: R75/5 choke stopped working
Replies: 19
Views: 1128

Re: R75/5 choke stopped working

Further to whats already been said about checking the levers move and my earlier comments on the cables being correctly adjusted. In the picture you will see two cylindrical protrusions on the enricher covers at 12 o'clock and 6 o'clock. They are the stops so you need to check the lever hits the low...
by barryh
Mon Feb 26, 2018 4:25 pm
Forum: Post 1970 Airheads
Topic: R75/5 choke stopped working
Replies: 19
Views: 1128

Re: R75/5 choke stopped working

There is not much that can go wrong with the enricher mechanism if it's correctly adjusted on the cables and hasn't been disassembled. The jet in the bottom of the float bowl is one but you have cleaned that. The other thing is the gasket on the enricher covers that can suck air in. New gaskets and ...
by barryh
Wed Feb 21, 2018 7:43 am
Forum: Post 1970 Airheads
Topic: Cylinder head temp guage
Replies: 7
Views: 513

Re: Cylinder head temp guage

Sparkplug washer thermocouples are one way to do it. Many digital multi-meters have a setting for type K thermocouples.

http://thermomart.com/cylinder-head-temperature-gauge
by barryh
Sun Feb 11, 2018 8:56 am
Forum: Post 1970 Airheads
Topic: regarding rear shocks
Replies: 19
Views: 1780

Re: regarding rear shocks

You could take them off and remove the springs so that the dampers can be stroked by hand to see if there is any damping left. As with front forks expect rebound damping to be much stronger than compression damping.
by barryh
Fri Feb 02, 2018 1:17 pm
Forum: Post 1970 Airheads
Topic: Steering head bearings
Replies: 11
Views: 946

Re: Steering head bearings

Well not while she's watching obviously :D