Search found 1211 matches
- Tue Nov 04, 2025 2:51 pm
- Forum: Post 1970 Airheads
- Topic: E5/E10 Petrol
- Replies: 11
- Views: 10717
Re: E5/E10 Petrol
In this country, there was often summer gas (E0) and winter gas (E10), particularly in urban areas. This was to give everyone a lean mixture in the winter time to reduce carbon monoxide emissions. Mind you, this only really worked on carbureted vehicles. Fuel injected vehicles (at least the 99% of t...
- Fri Oct 31, 2025 10:29 am
- Forum: Post 1970 Airheads
- Topic: Couple issues, maybe normal
- Replies: 8
- Views: 2404
Re: Couple issues, maybe normal
Yes, I'm at two odometer failures now. I've got a guy who fixes that problem, restores the housing, and recalibrates the speedo so it's within 3% of actual, instead of reading 10% to 15% high. Old stuff doing old stuff things!
- Tue Oct 28, 2025 1:29 pm
- Forum: Post 1970 Airheads
- Topic: Couple issues, maybe normal
- Replies: 8
- Views: 2404
Re: Couple issues, maybe normal
My 1978 R100/7 has some vibes under load under 3K rpm. But I'd also found that it doesn't charge consistently under 3K rpm--when my son was a new rider I was shifting at 3K to keep him in the mirrors. This eventually drained the battery. So for both those reasons things are much better over 3K rpm. ...
- Thu Oct 09, 2025 11:52 pm
- Forum: Post 1970 Airheads
- Topic: Dead R65
- Replies: 4
- Views: 5645
Re: Dead R65
Look at the red wires that meet under the starter relay. One of them may have intermittent connection. Basically BMW feeds the whole bike through the starter relay. One red wire comes in with power and the other one goes on to power everything in the headlight. The wires go to separate, but connecte...
- Wed Oct 08, 2025 7:41 pm
- Forum: Post 1970 Airheads
- Topic: Woo Hoo! A Big Project!
- Replies: 414
- Views: 317174
Re: Woo Hoo! A Big Project!
I've created a bit of organization in my shop. I saw this idea in a high-end car collector's garage and my ambition rose to meet the idea: https://photos.smugmug.com/Shop/i-bTRsXjS/0/NGTtr9DJjp9qwCNnhfNrWMxddsvk3xCrcpFh6ZnwJ/L/ReferenceBoard10082025-L.jpg Mine is about half the size of the one I saw...
- Mon Oct 06, 2025 11:49 pm
- Forum: Post 1970 Airheads
- Topic: R75/5 Fork Oil Level and Amount??
- Replies: 4
- Views: 9173
Re: R75/5 Fork Oil Level and Amount??
Yes, I use 250cc per leg in my 1970s /6 and /7 forks. I don't drain and refill--if I'm replacing oil the fork came pretty completely apart.
- Sun Sep 28, 2025 6:39 pm
- Forum: Post 1970 Airheads
- Topic: E5/E10 Petrol
- Replies: 11
- Views: 10717
Re: E5/E10 Petrol
My bikes run just fine on E10 but they don't like sitting with it. When I lived in California and could only get E10, if the bike was going to sit for a while I'd park it with a full tank and Startron fuel stabilizer. I always run the float bowls dry when I park the bikes. I had good luck with this ...
- Thu Sep 11, 2025 10:30 am
- Forum: Post 1970 Airheads
- Topic: Sticking / Dragging Front Brembo Brakes
- Replies: 2
- Views: 11023
Re: Sticking / Dragging Front Brembo Brakes
Additional pro tip for the Mechanic From Hell wedgie technique: Have the reservoir nearly empty before you push the pistons back as the act of pushing them back will move fluid from bottom to top.
- Thu Sep 04, 2025 7:18 pm
- Forum: Post 1970 Airheads
- Topic: Idiot v. Motorbikes, Rounds 3, 4, and 5
- Replies: 193
- Views: 340101
Re: Idiot v. Motorbikes, Rounds 3, 4, and 5
I played about a little bit today. First, I wanted to see if I could, by one means or another, get the frame to sit like a Featherbed, where the horizontal elements are pretty much horizontal, as seen here: https://photos.smugmug.com/Elvis/i-WVc7R4L/0/MPNjq2NVfvnfFWk9qW34hgWPqFntTRqbk8q2J9vFH/L/Elvi...
- Tue Sep 02, 2025 11:50 pm
- Forum: Post 1970 Airheads
- Topic: Idiot v. Motorbikes, Rounds 3, 4, and 5
- Replies: 193
- Views: 340101
Re: Idiot v. Motorbikes, Rounds 3, 4, and 5
OK, here's the formal start to Elvis. I'm a bit between funds right now but there's plenty of low budget stuff to do with an eye toward hearing the motor roar and getting some subsystems (electrics and wheels for a couple) ready for prime time. First, here's the situation today: https://photos.smugm...