Boost Carburetor High Speed O-Ring (Black) (2) by Picco
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This product was added to our catalog on November 1, 2012.This is a pack of two Picco Boost Carburetor High Speed Needle O-Rings, and are intended for use with the Picco Boost 5TR .21 and .28 nitro engines. These O-Rings are used to seal the high speed needle. When you make an adjustment to the HSN and it feels loose, it is a good idea to change the O-Rings to prevent possible air leaks.