suzuki 150 hp runs rough at idle

[Capt.B]

I have a suzuki 150 efi new in 2004, i now have 65hrs and have followed all suzuki maintaince schedules. At idle about 500rpm in gear it runs rough and makes you feel it is about to stall. Had it in to suzuki two times and both times they tell me that suzuki engins run rough at idle. I was also told that that as i get more hours on the engine it will run better. I feel that the plugs are loading up and when i take the plugs out and wipe them down and replace them it runs better. I have not been happy with the Suzuki repair dept. They seem not interested in fixing the problem.

 

[surfmon]

Re: suzuki 150 hp runs rough at idle

Is it a 2-Stroke ?? Try using premium fuel and see if that makes a difference.

 

[ALouv]

Re: suzuki 150 hp runs rough at idle

We have the same problem with a 2003 suzuki 225. We are very upset with the repair dept. too and they told us the same about the engine running rough at idle. We don't buy it and I even asked the suzuki people about it. They changed our plugs and after 20 minutes of running, they were black too. What did you do????