My 150 hp motor has developed a couple of problems which are probably related. The motor performs normally from low speed to WOT however when at idle and out of gear the motor is blowing bubbles from the prop which I think means that the exhaust bypass is not working correctly. Also when flushing with the motor running with muffs on there is no tell tale although the tell tale is normal with the boat in the water. The tell tale used to be ok with muffs. Appreciate it if someone has run into this before and has a solution.
Regards
Colin
Regards
Colin