Chrysler 25 and 30 HP Outboard Motors Service Manual OB 1894, Page 79Get this manual
SECTION XIV (Cont 50 inch pound increments to specified torqueThe reason for this procedure is to avoid danger of warping cylinder head6-1 Removing Exhaust Port Cover, Plate, and Gaskets
AOn electric start models, remove interlock switch as outlined in Section XI, paragraph 3-1BUnsnap throttle cam rod from magneto control leverCRemove ten (10) screws securing cover to powerheadDRemove cover, plate, and two (2) gasketsEUnscrew lock nut securing magneto control lever to exhaust port cover
Figure -Intake Sides of Cylinder and Head
FUnscrew idle stop screw from boss on exhaust port cover6-2, Installing Exhaust Port Cover, Plate,
and Gaskets