I have a lift cus with 350 hours on this unit.It just started smoking on start up.He hauls it out once a year in spring to do lubes & filters & commission & check systems on boat.Motor starts & runs good.
Carbs were dirty,cleaned carbs,balanced carbs,motor idles ok & runs up to high speed great.Throttling back it will stall.Throttle back slowly it might stay running ok.thanks ahead.