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            This is the #873S OS Super Silencer Muffler used for the
                        OS Max 40FX and 46FX Engines.

FEATURES: Direct Fit Optional Part.
          Natural Aluminum Construction.
          Three Expansion-Chambers Separated by Cone Baffles.
          Offers Appreciable Reductions in Noise Emissions.
          Exhaust Outlet and/or Pressure-Fitting Can Be Rotated To The Most
            Convenient Positions.

INCLUDES: One 873S Muffler w/Pre-installed Pressure Fitting
          Two black steel 3x35mm Cap-Head Screws w/.5 pitch threads OSMG6914
          One Instruction Sheet

REQUIRES: A 2.5mm hex wrench to install to engine

SPECS:    Length:   175mm
          Diameter: 38mm at largest point including cooling fins
          Mounting Hole Centers: 37mm

          Mouting Flange: 44mm Wide
                          10mm Height
                          27mm Length from end of flange to muffler body
                          28mm Intake Port Height
                          6mm  Intake Port Width

          Exhaust Port Diameter:  6.8mm ID
                                  11mm  OD

          Pressure Nipple: Length:   14mm
                                     Diameter: 4.5mm line end
                                     Threads Length:   6mm
                                             Diameter: 3.5mm
                                             Pitch:    .6

COMMENTS: For Muffler Assembly Screw use: OSMG6946
          For 11.6mm extension use OSMG2578
          For 90° adapter use OSMG2590

                                                                    MAF5/26/99
                                                                       ir/jl
                                                              updt jxs 12/10/04
                                                              updt JCT 01/21/05
                                                             updated tjt 042805



– If you need more information, use these O.S. resources –

E-mail: enginesupport@hobbico.com
Web Site: http://www.osengines.com/
Phone: 217-398-8970


 
Postal Address:
O.S.
3002 N. APOLLO DRIVE, SUITE #1
CHAMPAIGN, IL 61822  








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