Mariner, 225EFI, 1996

by Chris
(SmithMtnLake, Virginia)

On cold start up you would think I was fogging for mosquitos! Excessive smoking from the idle exhaust next to the tell tale. This has been on going for some time and has not affected performance in any way. After warm up it goes away and even if stopped for a time does not do it again. Only occurs at first start of the day, so to speak. Other than the neighbors thinking my boat is on fire it has not caused any other issues. Oil consumption totally normal. So, it this a problem?
BTW, why is there an idle exhaust and a primary exhaust out the lower unit? Thanks!

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