There is a very common mod to remove those balls and springs and epoxy in

 > webber carb jets drilled to a specified size. That way you always get

oil.

 > See Turrentine''s video as well as Tracy's book.
 > Commonly done to all the racing engines as well.
 >

Right, that is what I was just about to do, but thought about it.  Paul
convinced me that the check balls have a very important purpose (keeping oil
flow to the rotor bearings during idle).  Anyone want to buy a pair of brand
new Webber carb jets at half price?  :-)

Dave Leonard

I see no advantage in taking them out. They are pretty simple and if you keep
your oil clean they should work forever. If you want a bit more rotor
oil cooling perhaps you could drill them over size. On the other hand
a slightly hotter rotor is slight more efficient and teflon encapsulated
O-rings will extend viable rotor temperatures.

Paul Lamar
 
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