Remember, some marine transmissions have a come-home feature you can engage if the forward clutch fails. Check the operator’s manual to see if yours is so equipped.
The come-home screws are accessed from the rear of the transmission, as shown above. With the engine off, remove the access plugs and turn the inner screws as directed in your manual, until they bottom. Re-install the plugs.
Caution: With the come-home screws engaged, there is no neutral position or reverse gear. Until your tranny is repaired, the boat will be moving forward anytime the engine is running! (Excerpt from PRACTICAL BOAT MECHANICS, to be published this fall.)
(Some of this material excerpted from “PRACTICAL BOAT MECHANICS”, by Ben L. Evridge, to be published this fall.)