Sometimes the " not fixable " term is used to mean.----------1,We do not have the tools.----2, we do not have a good mechanic.----3 we are not able to make easy money on this repair.----4 We can make money if you buy a new motor.-----A polite way of saying --" please go somewhere else " in my opinion. !!
Yep, a mechanic that tells you that really doesn't want to work on your engine, or they only want to make big money. Joe has great advice too if you want to do some troubleshooting the folks around here can help if you do a little of the work.
A model# and specifics will help quite a bit.
HOT - As Joe asked, how hot? operating temperature, overheated, warm....?????
Compression - What is the exact number? Thumb over a spark plug hole doesn't count
Spark - Will it jump the correct gap? This matters a lot.
Spark Plugs - Do you have the correct plugs in the engine? If this engine has OIS ignition, then the OEM Champion plug is vital.
If you can turn a wrench, the guys on this forum can probably get you there if you follow their advice. There are a handful of parts that are the likely problem and you can get to the root issue and fix it.
If you choose to just let a mechanic handle it then you need to ask other Johnson/Evinrude owners at the marine or boat ramp who they use and get a consensus of the best place to go.
Good luck. Oh, and when you get the issue resolved either by yourself or a mechanic, please report back what fixed the problem. This helps everyone else in the future when they have the similar problems.
KJ