Report Abuse. Honing out the cylinder is just taking the edge off if you will. your just cleaning it up abit. You shouldn't have to get a bigger piston. but what you might want to check is if that is the original piston or if it has been replaced.
A common cause of variegation is the masking of green pigment by other pigments, such as anthocyanins. This often extends to the whole leaf, causing it to be reddish or purplish. On some plants however, consistent zonal markings occur; such as on some clovers, bromeliads, certain Pelargonium and Oxalis species.
This page will give images and information on some of the diseases that may afflect your zinnias. DESCRIPTION: Alternaria is a fungus which causes leaf spotting. Leaf spots progress from older leaves to newer. Spots are circular, target-shaped, and often surrounded by a slight yellow area. Entire leaves may die and drop from the plant. They may also be found around stem ends on fruits and on stem.