Search found 19 matches
- Mon Jul 25, 2016 11:01 am
- Forum: Post 1970 Airheads
- Topic: Replacement tires for R90s
- Replies: 16
- Views: 6167
Re: Replacement tires for R90s
Thanks for the heads up on the Conti's the reviews are fantastic I am very interested.
- Mon Jul 25, 2016 10:36 am
- Forum: Post 1970 Airheads
- Topic: Replacement tires for R90s
- Replies: 16
- Views: 6167
Re: Replacement tires for R90s
I am really interested in the Sport Demon my friend loves them but he has them on a 92 FJ 1200. The other tires I am interested in are the Avon Sport Riders and Dunlop. Thanks
- Mon Jul 25, 2016 8:32 am
- Forum: Post 1970 Airheads
- Topic: Replacement tires for R90s
- Replies: 16
- Views: 6167
Replacement tires for R90s
It is time to replace the tires on my 1975R90s and I am looking for the stickiest tires possible. I currently use Metzeler which are great but why not try something new. A friend of mine tried Pirelli Sport Demon and thinks they are great but I think they dont make an 18 for the rear. Does anybody h...
- Sat Jul 19, 2014 2:33 pm
- Forum: Post 1970 Airheads
- Topic: R90s rapping sound
- Replies: 26
- Views: 5928
Re: R90s rapping sound
Well I finally got enough time from work and installed the needle bearings yesterday and that seems to have been the problem and I guess also why I thought it was feeling underpowered. Unfortunately it is raining here today so I have not had a chance to go for a spin. Thanks to all I never would hav...
- Sat Jun 14, 2014 4:17 pm
- Forum: Post 1970 Airheads
- Topic: R90s rapping sound
- Replies: 26
- Views: 5928
Re: R90s rapping sound
Does anybody know where I can buy replacement needle bearings? They are Dorkopp 310-3640 but seem to be very difficult to find, the local BMW dealer says he can order them in but they are $40.00 CDN each making $160.00 plus tax per side ouch! I was hoping to see if I could get them from SKF or the l...
- Sat Jun 07, 2014 4:49 pm
- Forum: Post 1970 Airheads
- Topic: R90s rapping sound
- Replies: 26
- Views: 5928
Re: R90s rapping sound
Thank you all once again. I have taken the rocker arms off today and think that maybe the roller bearings are at least part of the problem, the second think I have noticed is that the push rods are scored fairly heavily around the push rods which indicates to me that they are rotating in the tubes a...
- Fri May 23, 2014 10:49 pm
- Forum: Post 1970 Airheads
- Topic: R90s rapping sound
- Replies: 26
- Views: 5928
Re: R90s rapping sound
I forgot to mention where the sound is coming from.
The sound is coming from the left side when the RPM's are around 2500.
The main problem is that the rapping is not consistent unless under acceleration....
Ken
The sound is coming from the left side when the RPM's are around 2500.
The main problem is that the rapping is not consistent unless under acceleration....
Ken
- Fri May 23, 2014 10:43 pm
- Forum: Post 1970 Airheads
- Topic: R90s rapping sound
- Replies: 26
- Views: 5928
Re: R90s rapping sound
Hi All Sorry I have been under the strap with work these last few days. As to answer the great questions: There is no ping especially because the motor was apart a few years ago, at that time we check for any movement in the bottom end bearings all be it in a wiggle test. I changed the oil this even...
- Thu May 22, 2014 10:26 am
- Forum: Post 1970 Airheads
- Topic: R90s rapping sound
- Replies: 26
- Views: 5928
R90s rapping sound
Hi All I have been on the form asking various questions about putting my R90s back on the road. I am happy to say it starts, idles and runs quite well, the plugs are consistent with each other and the right colour. The compression is 130 each side exactly so on the outside it should be great. I find...
- Tue Jun 25, 2013 4:23 pm
- Forum: Post 1970 Airheads
- Topic: starter relay wiring
- Replies: 4
- Views: 767
Re: starter relay wiring
I cannot thank you enough
Ken

Ken