I have an '82 115 evinrude that has begin to jump out of gear in forward. It has progresively gotten worse. At first, it would only do it every 5-7 minutes, now so bad I can only idle and it will still do it every 1-2 minutes. A local mechanic said that a shift linkage out of a adjustment probably caused it but the damage done is probably bad enough that it will need a dog gear. My question is how difficult of a job is this and how many special tools will it take? i.e. bearing carrier puller, etc. Also, any idea what the going rate for parts and labor for a shop to do this is? I hate to put too much $ in the old thing.