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Outboard Issues

Posted on 7/26/14 at 12:06 pm
Posted by Pac10bites
Madisonville
Member since Aug 2008
138 posts
Posted on 7/26/14 at 12:06 pm
I'm having some issues with my outboard (2007 Yamaha 150 VMax). It starts and idles really good but when I plan it out and get up to around 3000 RPM's it chokes down and runs like I'm pulling 600 lb skier. It will surge somewhat at times and the RPM's will get up to around 4000 but it chokes back down.

Anyone know where I should start??
Posted by Nascar Fan
Columbia La.
Member since Jul 2011
18574 posts
Posted on 7/26/14 at 12:08 pm to
Mine was doing something similar this Spring & changed the plugs, problem solved
Posted by Pac10bites
Madisonville
Member since Aug 2008
138 posts
Posted on 7/26/14 at 12:10 pm to
Cool deal, Bro... I'll give that a try and see if it improves. Thanks!!
Posted by Ole Geauxt
KnowLa.
Member since Dec 2007
50880 posts
Posted on 7/26/14 at 12:14 pm to
or, you could take it down the street to bryans marine, and "pay the man".
Posted by Motorboat
At the camp
Member since Oct 2007
22682 posts
Posted on 7/26/14 at 12:19 pm to
I started a similar thread a few weeks back. Try the search function using "seafoam". There was some good info within.

Btw I'm still having the same problem

Eta. Here ya go: LINK
This post was edited on 7/26/14 at 2:27 pm
Posted by Pac10bites
Madisonville
Member since Aug 2008
138 posts
Posted on 7/26/14 at 10:49 pm to
Lol.. Yeah, he likes his work a little too much for sure!
Posted by Pac10bites
Madisonville
Member since Aug 2008
138 posts
Posted on 7/26/14 at 10:50 pm to
Thanks Motorbait!!
Posted by Floating Change Up
signature text loading ...
Member since Dec 2013
11852 posts
Posted on 7/27/14 at 6:10 am to
Good suggestions in this thread so far... But that surge issue could also be a seal in the lower unit is letting water in places it doesn't belong.

If your plugs don't fix the problem, check for water in the lower unit.
Posted by Pac10bites
Madisonville
Member since Aug 2008
138 posts
Posted on 7/27/14 at 7:01 am to
Thanks, Change up! I just replaced the lower unit a few weeks ago so I will difficultly look into that. That wouldn't be cool
Posted by lsu mike
Gonzales
Member since Sep 2006
8580 posts
Posted on 7/27/14 at 8:58 am to
Don't know if this had been mentioned but have you checked into the ignition coils being bad? I have a mercury pro xs that was running slow/bogged down. Come to find out it was an ingniton coil problem.
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