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Old 02-25-2013, 02:13 PM   #3359
Joined: Feb 2013
Oddometer: 12
Originally Posted by Notaduke View Post
Great, thanks. That solves that part of the puzzle, although this pie pan with a pie in it seems like a pretty bizarre piece of engineering.

I guess I can't say with 100% certainty until I get a new screen installed, but it seems to me that losing that screen has an amazingly big impact on the backfire situation. Must be right on the edge with it installed.
I think with stock FI it will run leaner which will make the back fire worst w/o screen - I read that. With JD tuner screen can be removed. From what I understand that (screen) is not part of the spark arrestor.
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