Idle stabilizer

[Skittles]

I've been fighting an electrical gremlin for some time on my 175 EFI, today I was finally lucky enough to keep it acting up long enough to figure it out. It would run fine for a coulple of weekends and then all of the sudden while running along just start dropping 3 cylinders. Anyway it turned out to be the idle stabilizer, I had an extra so I threw it on and all is good. My question is can I get rid of this? I know I can on a carb motor but I wasn't sure if that was true for an EFI. Thanks for any info.

[Superdave]

It's trash. Remove it and set your max timing a WFO to 23°. Some go up to 25°, but not me, yet. LOL Just getting broke in good.
Dave

[Skittles]

Thats what I wanted to hear, will toss it tonight and reset timing. Thanks for the info.

[rookieflyer]

and I'm wondering if this is my problem also - but on a carbed 150. How would I test for this, and how is it best removed - simply disconnect it, or do wires have to be re-connected in any specific way?

[Clint]

Trashed both my idle and hi-speed pack in the trash on my '85 150 XR2, that was 3 years ago!!!!!! Oil injection was removed in '85. Prob. why it's still alive today.

[Skittles]

You can test it by connecting a timing light to #1 plug wire, let engine idle above 600 rpm and then pull forward on the spark advance lever.As soon as the rpm drops below 550 the timing should quickly advance by as much as 9 degrees.
I determined I had no spark on # 2,4,and 6, then tested for output from the stator which I had, then output from the switchbox which I did not have. I just replaced both the switch boxes because I thought that was the problem and i did not believe 4 switch boxes could fail and do exactly the same thing within 2 weeks. At that point I disconnected the red/white from the stabilizer to switch box and the white/black and bingo spark came back. The hard part about this was that it was so intermittent I would change something that i thought was wrong and it would be fine for 2 weeks then start acting up again. Just about drove me nuts.
It's coming off tonight so I dont have to worry about it again.:cool: