1983 Yamaha 30EN Outboards Service Manual, Page 99Get this manual
Install the gasket on the upper casing, and secure the exhaust manifold with screws3Secure the exhaust guide to the exhaust manifold with screws3 Insert the bushings into the starboard side of the bottom cowling, one .each for the outer and inner sides, insert the throttle control shaft into the bushings from the outer side, and hold the throttle control lever with the spring pin
Bottom cowling 1Install the grommets and collars on the bottom cowling, install the bottom cowling on the upper casing, and fasten it with nuts