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
Dominick, Marine Mechanic
Category: Boat
Satisfied Customers: 1009
Experience:  25 Years Experience as Mechanic, 20 Yrs Boat Yard Owner/Mechanic, Factory Certified
14379177
Type Your Boat Question Here...
Dominick is online now
A new question is answered every 9 seconds

Jason.I have Mercury Optimax 90,2008.I have intermittent trouble.Sometimes,when I ru

Customer Question

Hello Jason.I have Mercury Optimax 90,2008.I have intermittent trouble.Sometimes,when I run at 32 mpm,it goes up and down.Sometimes it's OK.
Submitted: 1 year ago.
Category: Boat
Expert:  Jason replied 1 year ago.
Hello, Jason here. Whom am I speaking with? These are extremely complicated engines, and you won't own the tools to troubleshoot them. How is it I can be of help to you?
Customer: replied 1 year ago.
Can you tell me what can I do to check or change some parts?
Customer: replied 1 year ago.
Also,I use regular unleaded gaz .
Expert:  Jason replied 1 year ago.
The first thing you should do is run the engine off of a portable fuel tank. If it runs better you have either bad gas, or some kind of blockage issue in the boats tank. Does that make sense?
Customer: replied 1 year ago.
I can't try this for now,because I am in town .I will check this next friday.What kind of gaz do I have to use?Excuse my english,I am a frenchman.
Expert:  Jason replied 1 year ago.
87 octane is fine.

Related Boat Questions