BF 150 SCS codes

[hornblower4704]

My Bf 150 is running poorly at idle. I've replaced all filters, new plugs, thermostats, MAP sensors, IAC valve. Actually swapped the MAP and IAC from my other BF 150. I have the SCS connector and I'm getting the following codes. 7 short blinks then pause long blink then pause 4 long blinks then 1 short. I have the shop manual but can't determine what problem the codes reflect. Any and all help is really appreciated.

Greg

 

[hornblower4704]

Re: BF 150 SCS codes

Failed to mention my motors are 2005.

 

[ffengine28]

Re: BF 150 SCS codes

I have a 2003 BF 150 with high hours and I am having the same problem. It seems like it is idled too low and stalls easy. I have a thread on hear about running Yamaha ring free through the motor because I was told it would clean a lot of carbon out of the motor, But I have not tried it yet. Hopefully somebody can help us.

 

[ffengine28]

Re: BF 150 SCS codes

Did you replace the filter inside the vapor separator?

 

[hornblower4704]

Re: BF 150 SCS codes

No, didn't replace the VST filter. Planning to try that this weekend. Thought about swapping the pump and VST from the other engine.

 

[hornblower4704]

Re: BF 150 SCS codes

Are you referring to the high pressure filter? Or is there a filter inside the VST?

 

[ffengine28]

Re: BF 150 SCS codes

Are you referring to the high pressure filter? Or is there a filter inside the VST?

There is one in the vapor separator. Go to ********** and they have great diagrams to look at. Look at the vapor separator diagram and you will see the one I am refering to.