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

I bought a 2008 Ultra 250x, it has 4 hours on it, took it out

Customer Question

I bought a 2008 Ultra 250x, it has 4 hours on it, took it out wouldn't run bc the bad gas and plugs, so I replaced the plugs and gas seem to run ok but the fastest it's been is 45 and only getting to about 6,000 rmps and 11lb of boost. Do you have any idea what it could be its been sitting in the garage for about 3 years
Submitted: 1 year ago.
Category: Boat
Expert:  RSRBOB replied 1 year ago.
Hi and thank you for your question.
We need to start at the very beginning of the diagnostics process. Let's run a compression test on the engine 1st and make sure it is healthy before proceeding. Reduced top speed performance can certainly be a mechanical issue. A compression test is the quickest and easiest way to determine if an engine is mechanically sound or not. Let me know what you get and we can go forward from there.
Thanks
RSRBOB
Customer: replied 1 year ago.
I'm certain in doesn't have anything to do with low compression it only has 4 hours on it and has been sitting inside the garage it's still basically brand new

Related Boat Questions