Well yes - flush if you can. Opions will vary as to how often you must do it and how much sleep to lose if you don't. I try to flush every use, but don't worry too much if I can't on occasions.
Heaps of previous threads on this topic, do a seach on "flushing engines".
Maybe you should have started with something smaller. 'Only Kidding Lucky You.'
Are you really totally new to boating ? If so welcome and enjoy. Thats a nice engine you've got which should have no problem going anywhere. Go back to the dealer and get him to tell you what to do. Read the manual and get it serviced as required.
the optis have a download facility for engine data and hours. you may also be able to get information from the smart craft gauges. most engineers should be able to download and give you print out including any fault codes.
by getting the history of any faults will give you some information but generally these are good motors! expecially that age as they will have sorted teh initial teething problems.
Make sure your fuel filter is in tip top condition to keep water out as this will bugger it big time!!
Great engine. fantastic power and response and i personally love the noise! make sure you use the correct oil (im not going to start that debate again)
