oceanhunter
New member
Hi my meercury optimax 115 hp is playing up. The problem started gradually over 4 fishing trips. First time after going at around 45km drop back to troll for a while went to go back to 45km but would not go past 2700rpm with throtal fully on top speed now around 15km. I stop motor anchored and fished for 2 hours. Start up motor after fishing runs good back to 50km plus go home no problems. The next trip the same but this time on the way home engine speed at full revs is around 30km. I go home thinking motor starving for fuel, so I change fuel filters inline tank filter and onboard fuel filter, air filter, change all fuel lines to fuel tank. I check breather in fuel tank working etc.
I go out on water go full throtel around 50km plus but after 10min slowely drops back to 15km 2700rpm full throtel. The motor is out of extended warrenty by one month. Currently motor is in at Mercury Dealer/Mechanic and he has had it in the water twice after timing, checking motor with laptop and put kit through fuel pump. Still the problem is there. The mechanic says he has done all checks with computer checked fuel presure, checked each spark plug etc. The top spark plug seemed bit wet which he says indicates too much fuel if anything.
Last trip my misus said I smelt oilly. The motor its self seems to be using a little more 2 stroke oil. The mechanic said the motor starts and idols perfect just won't go past around 2500 rpm??? When your on the boat to any novice it sound like its starving for fuel. Is there anything electrical that can cause problem??? Any suggestions would be appriciated.
cheers
Lionel
I go out on water go full throtel around 50km plus but after 10min slowely drops back to 15km 2700rpm full throtel. The motor is out of extended warrenty by one month. Currently motor is in at Mercury Dealer/Mechanic and he has had it in the water twice after timing, checking motor with laptop and put kit through fuel pump. Still the problem is there. The mechanic says he has done all checks with computer checked fuel presure, checked each spark plug etc. The top spark plug seemed bit wet which he says indicates too much fuel if anything.
Last trip my misus said I smelt oilly. The motor its self seems to be using a little more 2 stroke oil. The mechanic said the motor starts and idols perfect just won't go past around 2500 rpm??? When your on the boat to any novice it sound like its starving for fuel. Is there anything electrical that can cause problem??? Any suggestions would be appriciated.
cheers
Lionel