[Ducati] 900SS - Wits End

[Alex Pearsall]

Good call Ron.  Looking for a 12mm adapter, and I'll see what it shows.
The vertical cylinder measured .065" of head-to-piston clearance at the
edges of the piston.  The horizontal cylinder measured .066" in the same
place.

You are right.  The lean situation makes sense for the horizontal
cylinder.  The 11:1 pistons should be pulling more air, overwhelming the
existing jets (which worked for standard pistons)  The vertical cylinder
being rich indicates something may be rotten in denmark.

Thanks!

>
> Dude , are you sure the squish is the same for both cylinders. Volumetric
> effeciency will have a direct affect on how those CV carbs work. Check for
> equal compression and take a look at your cam timing again. If one
> cylinder had better volummetric effeciency than the other you will see a
> difference in the amount and timing of the lift you see on the
> needle/slide assymblies. In simple terms , one will have more vacume
> influence on the diaphragm of the CV carb than the other.
>
> Peace...Ron"Desmohead"Betts 95 900 SPI've learned that I don't suffer from
> insanity, I enjoy it!
-- 
Alex Pearsall
http://www.rebelpacket.net/