I have just bought a used 1998 Mariner Lightning 25hp 2 stroke 3cyl for a very good price. We have testran it shortly in a container before we made the deal (private sale). Although it ran at high idle speed no strange sounds where audible.
Tonight I was testrunning it at home, (I have turned down the idle speed) but a pretty worrying sound is audible when you close the throttle. It also cuts out at idle. Check out this video (
) to hear what I mean.
I am not am expert, but I am affraid the big end bearings are worn. Please give me your opinion if you have the expertise.
I will have the outboard checked at an outboardshop before I put her on the back of my SIB.