Intake and Exhaust Valves/Intake and Exhaust Valves 4. Install cylinder head (C). (See Install cylinder Head, Group 10 in this manual.) 5. Install intake manifold (B). (See Install Intake Manifold, Group 10 in this manual.) 6. Install exhaust pipes with muffler (A). (See Intake Manifold, Group 10 in this manual.) M36473 -UN-29JAN90 7. Install engine if removed. (See machine technical manual.) M98,2015K,38 -19-11NOV85 15 17 CTM2 (19APR90) 15-17 16, 18, 20 & 24HP Onan Engines AllTractorManuals.com 130495