Main Menu
Advertisement
Affiliates
Advertisement
Newest Members
MT-Gig'em, nash81, Tough bite, fennph, poppin'good
105421 Registered Users
Top Posters
TexDawg 85602
hopalong 78097
Pilothawk 74931
JDavis7873® 67382
John175 ® 64295
FattyMcButterpants 60667
Derek 🐝 58024
Tritonman 57516
LoneStarSon® 53046
SkeeterRonnie 52940
facebook
Forum Stats
105421 Members
60 Forums
798073 Topics
10087858 Posts

Max Online: 36273 @ 01/23/13 02:34 PM
Topic Options
#11415264 - 02/15/16 11:06 AM Optimax white smoke
618phoenix Offline
Outdoorsman

Registered: 09/24/04
Posts: 54
Loc: little elm
I have a new to me 150 merc optimax that has a white smoke coming out at idle. I am using the DFI oil, I am not sure what was used prior. Could this be causing the smoke or something else? thanks.

Top
#11415582 - 02/15/16 01:24 PM Re: Optimax white smoke [Re: 618phoenix]
forkduc Offline
TFF Guru

Registered: 03/28/07
Posts: 11035
Loc: Plano,Texas
Bad fuel/oil mix?

Top
#11418739 - 02/16/16 07:32 PM Re: Optimax white smoke [Re: 618phoenix]
JoeFriday Offline
Pro Angler

Registered: 05/23/13
Posts: 830
Loc: Flower Mound, TX
If it's white smoke, could it be a head gasket leaking water into the cylinder? Regardless, I don't think I would run it until you find the source.
_________________________
This space for rent

Top
#11419731 - 02/17/16 08:46 AM Re: Optimax white smoke [Re: 618phoenix]
redchevy Online   content
TFF Celebrity

Registered: 01/25/05
Posts: 6643
Loc: texas
Does it do it all the time? Or mostly at start up and goes away as it runs?

In cooler temps exhaust will appear heavier and lighter in color to me just like when you start up your pickup truck on a cold morning.

Top
#11419781 - 02/17/16 09:04 AM Re: Optimax white smoke [Re: redchevy]
618phoenix Offline
Outdoorsman

Registered: 09/24/04
Posts: 54
Loc: little elm
Originally Posted By: redchevy
Does it do it all the time? Or mostly at start up and goes away as it runs?

In cooler temps exhaust will appear heavier and lighter in color to me just like when you start up your pickup truck on a cold morning.


It does it all the time. I bought the boat in Oct and only had it out once before the past couple weeks. I don't think it was smoking then but not certain.

Top
#11420040 - 02/17/16 10:36 AM Re: Optimax white smoke [Re: 618phoenix]
BODA Offline
Angler

Registered: 06/10/14
Posts: 298
Loc: Eagle Mountain Lake
wait, don't 2-strokes all smoke? how did the boat run when you took it out? was it running ok?
if I start my boat on muffs, it smokes out the neighborhood

Top
#11420245 - 02/17/16 11:49 AM Re: Optimax white smoke [Re: BODA]
JoeFriday Offline
Pro Angler

Registered: 05/23/13
Posts: 830
Loc: Flower Mound, TX
Originally Posted By: BODA
wait, don't 2-strokes all smoke? how did the boat run when you took it out? was it running ok?
if I start my boat on muffs, it smokes out the neighborhood


The key is the color of the smoke. If it's blueish grey, that's normal. Other colors could indicate problems. I'm guessing Gary is busy getting boats ready for the season. Maybe he'll jump in.
_________________________
This space for rent

Top
#11421398 - 02/17/16 07:45 PM Re: Optimax white smoke [Re: 618phoenix]
gary purdy Offline
TFF Guru

Registered: 05/24/03
Posts: 11082
Loc: Littlefield Tx & Lake A. H. US...
Run it on the cuff till warm. Pull all of the sparkplugs and crank it over, look for signs of moisture. Some additives will cause white smoke but lots of white smoke is normally a sign of water getting in a cylinder.
_________________________
“The world will not be destroyed by those who do evil, but by those who watch them without doing anything” Remember what He has done and remember that He is not done yet! GOD IS GOOD

Top



© 1998-2017 OUTDOOR SITES NETWORK all rights reserved USA and Worldwide