Optimax help

[BWhaler23]

I feel your pain! I have the same engines on my 23' whaler... haven't had the problems your having, but they seem to be finicky to diagnose and alot of techs seem to have problems servicing them... and the price for parts are out of sight... told the rep that I'll be buying susukis, or yamahas as soon as possible.

Good Luck

Capt. Pat

[Mark215]

What year are the opti's. I've read online and experienced my own problems with these engines. Our boat had 1999 engines and the previous owner had good amount of hours on them without any issues until one day and problems just started. Had a really good merc guy come down and look at them and he advised us not to sink anymore $$$$$ into them. They seem to have a lot of problems with these engines in the late 90s.

[Flygaff]

They are 2000s purchased new in 04. I have just over 300 hours on them. They ran great until the water intrusion. Both fuel rails were replaced three years ago under warranty. I am hauling the boat this week with the hope the computers will show something.

[Mark215]

Good luck , hope everything works out for you.

[reefsquater]

I had a 1999 with fuel issues, paid two mechanics and still had issues.

Two things from my experience, the fuel lines need to all be replaced. We all know about ethanol. Seems like even the little lines will eventually give up small parts that will clog or semi clog injectors. Have you replaced every line from the tank through the entire system?

I was also getting a vapor lock when run hot and then turned off for while. I could never get that entirely resolved (but found ways to deal with it)

BTW, I am done with 2 stroke efi motors. Too finicky