TECH NOTES These are the Muffler Extension Screws for the #873 Muffler Extension OSMG2578 FEATURES: Black steel construction INCLUDES: Two 3x50mm black steel cap head screws w/.5 pitch threads REQUIRES: A 2.5mm hex wrench to install KrH 10-14-93 complete update tjt 042805   BOX DIMENSIONS: 2.13″ W. X .25″ H. X 3.50″ L.

This is the entire Needle Valve Assembly that screws into the side of the #3A, #21, #2A, and 30 size Wankel carbs. INCLUDES: One (OSMG7352) nozzle assembly (nozzle, 2 nuts and ratchet spring) One (OSMG7016) needle hdc 4/20/92 ir/jl   BOX DIMENSIONS: 1.50″ W. X .50″ H. X 3.50″ L. BOX WEIGHT: .02 LBS.