2015 175HP are smoking at start-up

[Bubbles]

Just repowered my 25ft Grady with twin 175s. I'm still in the break-in period (at 15hrs) and noticed that when the boat sits for a few days and I start the engines I get a blast of white smoke on both engines. after that its fine and they run great. Something to worry about or normal at this stage?

[Moonlighter]

Are you storing the boat with the engines tilted up? Best to store them down in normal running position if you can.

[Bubbles]

Nope, I keep the boat on my lift, engines down. I thought about that too and left one engine up and the other down...made no difference. Thanks for the reply.

[artdf175]

I would keep very good records... and document with the dealer..
after the break-in period .. watch for oil consumption issues
the motors are in warranty so you want to be careful not to do something that would violate the warranty
I have a '06 175 when I bought the boat it only had 25 hours on it but was outside the warranty..
I have an oil consumption issue that we now believe is a valve stem oil issue. it is about to get torn down and fixed..
but if you are having a problem best to get it fully documented at this point

[Bubbles]

Good advice. I spoke with the dealer and they are not worried, in fact, they said it's normal for Suzukies... I'm keeping a log and I'm glad I got the 6 year warranty rather the 3 year

[Moonlighter]

It's almost 5 years since I bought my DF115 new, but I do recall when it was very new that there was a bit of a puff of smoke on first startup in the early days.

It disappeared within the first year though, so I wouldn't worry too much.

Once you get the initial break-in done, don't baby the motors, some hard 5000+RPM running every trip helps bed rings in and burn off any fuel in the oil. Especially if you do lots of trolling.