b . D i s a s s e m b l y . R e f e r t o f i g u r e 4 - 1 7 a ndd i s a s s e m b l e t h e m u f f l e r .Key to figure 4-17:1 Cap2 Muffler3 Plug4 Coupling half5 Nut6 Washer7 Gasket set8 Coupling half9 Elbow10 Screw11 Bracketc. Cleaning and Inspection.(1) Clean and dry all parts thoroughly.(2) Inspect the muffler for cracks, brokenseams. damaged threads, and other damage.(3) Inspect the crankcase breather and otherFigure 4-17. Muffler and attaching hardware, exploded view.t h r e a d e d p a r t s f o r d a m a g e d t h r e a d s , c r a c k s ,distortion, and other damage.(4) Replace all defective parts.d . R e a s s e m b l y . R e f e r t o f i g u r e4 - 1 7 a ndreassemble the muffler.e. Installation.(1) Refer to figure 4-16 and install the exhaustelbow, male coupling half, and crankcase breather.(2) Refer to figure 4-5 and install the muffler.4-29. Oil Filler and Drain Pluga. Removal. Refer to figure 4-18 and remove theoil filler and drain plug.Figure 4-18. Oil filler and drain plug, removal and installation.4-26
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