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[QUOTE]Musky952 - 9/14/2016  1:55 PM

Was on the lake and tried to plain out by myself which is usually very easy. when I did this I felt that there was power missing for a second and then it was there and I had full power. This happened a couple times while I was planed out (speed up... slow down... you get the point). Now I haven't changed the spark plugs since I have gotten the boat and have put a good amount of hours on it. When I got home a took the cap off I saw that on the left 3 spark plugs there was a little bit of what looked like oil coming down the side out of where the spark plugs are screwed in. I am just wondering if I didn't screw them in tight enough when I cleaned them once before and then there was a build up over time or if its bad plugs or even both for that matter. I took them out and cleaned everything again and put the plugs back in until I can go buy knew ones. I am hoping that new plugs will do the trick. Heading back out on the water tonight with the cleaned off old plugs and we will see how she goes.

Hopefully someone has an Idea of my problem. I have a 98-2001 Yamaha Vmax 150 V6.

Thanks for any help guys![/QUOTE]

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Musky952

Posted 9/14/2016 1:55 PM (#830425 - in reply to #321649)
Subject: Re: Spark Plug Troubles

Posts: 400

Location: Metro

Thought I would dig this thread out of the grave. I had something that hasn't happened on my newer boat that I picked up before last season. It really seems like your average dirty spark plug but there was a few things that threw me off a little bit. I will start with what I felt:

Was on the lake and tried to plain out by myself which is usually very easy. when I did this I felt that there was power missing for a second and then it was there and I had full power. This happened a couple times while I was planed out (speed up... slow down... you get the point). Now I haven't changed the spark plugs since I have gotten the boat and have put a good amount of hours on it. When I got home a took the cap off I saw that on the left 3 spark plugs there was a little bit of what looked like oil coming down the side out of where the spark plugs are screwed in. I am just wondering if I didn't screw them in tight enough when I cleaned them once before and then there was a build up over time or if its bad plugs or even both for that matter. I took them out and cleaned everything again and put the plugs back in until I can go buy knew ones. I am hoping that new plugs will do the trick. Heading back out on the water tonight with the cleaned off old plugs and we will see how she goes.

Hopefully someone has an Idea of my problem. I have a 98-2001 Yamaha Vmax 150 V6.

Thanks for any help guys!