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Breva V1100 top yoke fork height adjustment

nel

Cruisin' Guzzisti
Joined
Oct 28, 2008
Messages
236
My forks seem to have risen in the top yoke such that over a cm of fork tube protrudes above the bars. the protrustion seems uneven left and right fork by a a couple of mm. You can see a spiral pattern on the top of the fork tube and I am on the 3rd ring. think this has happed over time when bolts seized so I slacken bolts off trying to unseize them. There only seems to be 1 allen bolt per fork leg the grips the top yoke to the leg 1 horizontal left and 1 right. when you slacken these should the fork pair lower triple tree front wheel drop in the top yoke. Or do you have to slacken the streering head bearings? What fork protrustion avove the handlebars in mm is normal? whats the steps to adjust? Thks
 
Nel, From the factory the fork tubes are all the way up. The bar risers provide a stop. There is one screw in the upper clamp, and two in the bottom. These screws should be removed and coated with an anti seize compound and re-inserted. The bike will turn in quicker with the tubes up.
 
So the forks cant work up in the top yoke if the top yoke pinch bolts are loose. Your so right about anti seize on the bolts. 1 of my lower bolts siezed round off so I tried to drill it which got me a hole in the bolt but a LH extractor cant bite on the SS steel of the bolts inararsds. I plan to remove both forks and lower triple tree this winter them bolt removal should be easy on a bench.
 
So the forks cant work up in the top yoke if the top yoke pinch bolts are loose. Your so right about anti seize on the bolts. 1 of my lower bolts siezed round off so I tried to drill it which got me a hole in the bolt but a LH extractor cant bite on the SS steel of the bolts innards. I plan to remove both forks and lower triple tree this winter them bolt removal should be easy on a bench.


Take the lower yolk to a machinist. Trying to drill it out by hand has a high probability of ruining the lower yolk. The stainless bolt will need to be removed using a carbide tip. Bring a good Allen bolt with you so he can match the threads. I do recommend that you have as many bolts tightened s possible if you are going to ride it. If it were my bike, I wouldn't wait for winter to make the repair.
 
thks for the sound advice. Admiring the Stornello thinking I could share one with my son who gets to ride A2 (47HP) bikes next year. Thinking how good the breva has been its a difficult choice. Wonder how the scramber folks cope with the cat heat form the link pipe. As you get older a lighter soft sprung bike is appealing
 
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