Please do not run your motor until the heads are re-worked. At 86K miles on a 1974 motor, it is time to do that. If an exhaust seat came loose, and yo...

If you have spare parts from a /6, you should be O.K. Spare parts from a /7 are probably O.K. If you intend to repair the R90S, you need to take tha...

As shown in a previous post, your Wisconsin Airmarshal is Randy Boris. He is in Manitowoc.

Take your starter motor out, open it up and have a look. There have been reports of the permanent magnets in Valeo starters coming un-glued from the h...

You are correct that the little column in the corner of the float bowl is what delivers fuel to the enricher circuit. The enricher jet in the float bo...

If it were me, I would send an e-mail to Tom Cutter. His business is called "Rubber Chicken Racing Garage". You would need to acquire the new master c...

In addition to Richard's excellent advice, have a look at Snowbum's web page. The /5 starter relay is unique in that there is an "anti-restart" f...

Please DO NOT bang on it with a mallet. It's not entirely clear of your fit up trouble is an alignment issue, or a "close the gap" issue. ...

O.K., I went outside and cleaned out the gutters on my house and thought this over for a bit. I decided to bump around other Airhead web sites and fou...

There should be a die available somewhere to match this thread pitch. I do not own one myself. You might try contacting one of our advertisers to chec...

Those are examples of bottoming springs. They are/were aftermarket accessories that were available in the 70's and early 80's. If I found them in a bi...

I simple possibility is the rear sub frame. The gusset under the seat has a propensity to suffer a cracked weld on the side opposite the seat lock ass...

There is 1 other thing that can create instability. Check for a cracked weld on the rear sub-frame at the cross brace where the fender bolts to it.