Re: Need a Marine Mechanic - 150HP Johnson
 

those johnsons are notorious for carb issues causing all kinds of problems, and they need FRESH clean plugs, U would be amazed at what kinds on seemingly unrelated things happen. When was the last time u cleaned or rebuilt the carbs? Gerry suggestion of a portable tank is a good idea and so is a spark tester, u may have a miss. Rule out this simple things, the mechanic is gonna do them anyway off the bat and whack u 75-100 an hour as he goes down the list of basics

Re: Need a Marine Mechanic - 150HP Johnson
 

also with the mercs like optimax the oil reservoirs like to leak on the seals and cause the vacuum to lose itself and make the alarm go off, even when they are tight the fittings can leak too, most common prob w oil alarms, prob not related to the funny running