How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Dominick Your Own Question
Dominick, Marine Mechanic
Category: Boat
Satisfied Customers: 1009
Experience:  25 Years Experience as Mechanic, 20 Yrs Boat Yard Owner/Mechanic, Factory Certified
Type Your Boat Question Here...
Dominick is online now
A new question is answered every 9 seconds

I have a 2009 115hp Mercury Optimax. The problem that I am

Customer Question

I have a 2009 115hp Mercury Optimax. The problem that I am having is it appears that I am loosing the #2 cylinder. The motor will not idle properly as it is very rough. The only way to keep the motor running is to increase the RPM's. I had the motor checked Friday by a Mercury mechanic and he put the motor through the diagnostic checks on his hand held computer and he received no error codes and the motor checked out ok. Fuel and air pressures are great. Compression on each cylinder checks out ok. Any suggestions??? The motor only has 32 hours.
Submitted: 2 years ago.
Category: Boat
Expert:  Charles replied 2 years ago.
Hello, my name is***** will be assisting you today.How are you sure that you are losing the number 2 cylinder?Do you have a multimeter and can do some testing?

Related Boat Questions