Re: Carb cleaning tip, what not to do

[Victor Laury <vlaury@earthlink.net>]

>>Greg Wrote - but I find it very hard to believe that each piston and dome 
>were percision honed and matched as a set at the factory.

>Keith Wrote -  but the SU carbs are much higher precision that they might 
>apear at first glance. I have mixed up a few dome/piston sets. Usually it does 
>not seem to make much differance. But, on some the piston drop rate will be 
>noticably different. Swap them back and they even up.

"Factory machined", or just "Worn together", Whichever theory you wish to 
subscribe, but as Keith points out switching domes or even dampner rods can 
cause tuning troubles. I've seen it many times.