I have a 2004 BF200A. It had 42 hours on it when I purchased it in December 2009. It has about 100 hours on it now. My problem is it has begun running rough at a fast idle (trolling speed). At idle, it runs fairly smooth. At high speed it runs great with no change in performance from when I bought it.
Now for a little additional history that may or may not have any bearing on the diagnosis. During the winter after I purchased the boat and the following summer it ran great in all temperatures and conditions. At the end of that summer the boat sat for about a month and a half. Around thanksgiving I took it out and had to crank it several times before it started. When it did star, the alarm buzzer went off so I turned off the motor and restarted it, and it ran great all day with no problems. I took it out about a week later and had to crank it more than usual but when it started it ran great. I took it out just before Christmas and had to crank it numerous times before it would start... It was very cold that day. Throughout the remainder of the winter and last summer it started fine.
Again this fall the boat sat for about a month. When I took it out after thanksgiving it started ok but the alarm went off again. Turned it off and restarted and everything seemed ok. Now the last few times I have taken it out it seems to be running rougher, primarily at a fast idle. At high speed it runs great. I haven't had it out this year when it has been really cold.
Now for the questions.
1. Any idea what the alarms may have been about?
2. Any ideas what might be causing the rough running and how should I address the problem.
3. Any ideas about the hard starting when it is really cold?
Any insight would be appreciated.
Chris
Now for a little additional history that may or may not have any bearing on the diagnosis. During the winter after I purchased the boat and the following summer it ran great in all temperatures and conditions. At the end of that summer the boat sat for about a month and a half. Around thanksgiving I took it out and had to crank it several times before it started. When it did star, the alarm buzzer went off so I turned off the motor and restarted it, and it ran great all day with no problems. I took it out about a week later and had to crank it more than usual but when it started it ran great. I took it out just before Christmas and had to crank it numerous times before it would start... It was very cold that day. Throughout the remainder of the winter and last summer it started fine.
Again this fall the boat sat for about a month. When I took it out after thanksgiving it started ok but the alarm went off again. Turned it off and restarted and everything seemed ok. Now the last few times I have taken it out it seems to be running rougher, primarily at a fast idle. At high speed it runs great. I haven't had it out this year when it has been really cold.
Now for the questions.
1. Any idea what the alarms may have been about?
2. Any ideas what might be causing the rough running and how should I address the problem.
3. Any ideas about the hard starting when it is really cold?
Any insight would be appreciated.
Chris