What did you do to or for or with your Laverda today?

The last few I fitted needed a bit of filing of the edges just to get started. Had to be heated, got on most of the way by hand but had to use a wide screwdriver to lever on the last bit until the lock plate could start to fit (knocking them on can push the output shaft into the gearbox). A loose one will destroy the output shaft.
 
motoddrob said:
The countershaft sprocket was quite loose on the spline. The spline is showing quite abit of wear. Is there a solution to tightening the fit somehow without having to replace it. It was a good 2nd hand one I replaced the worn original about 15000 kays ago when I last had the gbox apart. The original had done 170000 kays where as this one lasted 15000.
What causes it to wear?
I remember along time ago I fitted a new sprocket that seemed too loose to me. Can understand a sloppy fit would cause wear but the last sprocket was an interference fit.
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Gday Rob maybe that chain contact with the edge of the tyre isn’t helping that spline wear??
 
piranha-bro2 said:
Fitted a brand new 19T 530 cut down to 520 sprocket to the Q and was not happy that it's a loose fit on the spline. Just doesn't seem right to me. I'll be keeping a close watch on it. Much rather fit a new sprocket than split the cases and fit a new 5th gear output.
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Why turn the whole face off? Wouldn’t leaving the extra meat around the centre be better?
 
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I also ground 1/8th off the inside face of the one I'm using. Haven't found a source for 520 countershaft sprockets.
Maurice, you could have a point there. I cut/sanded the edge off the tyre and also ran the the wheel slightly off line by a couple of mm at the axle and still had contact..
So maybe the combination of being slightly out of alignment and the contact with chain could have caused the spline wear.
The tyre I have fitted is the Dunlop Roadsmart 4 and measures 162mm. Have never had a problem on all the previous 150 tyres I've been running on the Motodd since the late 80s.
 
Did you move the entire wheel sideways plus sprocket, Rob? Or did you retain sprocket alignment and shim the wheel to the left?

On the SFQ I moved the motor 3mm to the right, run the 520 sprockets with a 160/60 x 17 on a 4.25 inch rim. The tyre measures 166mm and I don't get any rub, but I have an upper chain guard that the chain would hit before it would hit the tyre - nothing for the lower chain run though and it doesn't appear to rub. I'm, dropping to a 150/70 next tyre so i can use all the sides of the tyres - the 4.25 gives the 160 an edge that's almost vertical - wasted tread.
 
Nah just ran the wheel slightly out of alignment to the left about 2 mm at the axle. I could move the motor to the right a few mm by remaching the engine mounts. The r/h carbie sits pretty close to the frame rail so can't move too much. Anyway now have clearance with the 520 and wheel in alignment. It would still hit the chain if the edge wasn't removed. I wont be using that Dunlop tyre again.
 
I am considering using 530 non o´ring next time I need new sprockets. The Scottoiler should keep it really good, and combined with one of Jason's top quality chains it should be fine.
 
Special Canadian Jota model. Now that I have your attention.... today I put the RGS into storage for the winter and took the orange beast out for winter use. Well it's not as fast as the RGS but at least it's orange and loud. First snowfall today and below freezing temps forecast for the next week....riding is over for the year.
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