if it's hunting for it's idle a fuel controller probably won't do anything. Look into the possibility of Yamaha having equipped the stryker with an IAC. I'm telling you. They probably did. Look into removing it. It works wonders for the Raiders.
Not neccesarily Need one, but now that i have one, I would never have bike without it. So many improvements to what is already an awesome bike!. But no you won't need one with just the slip-on. Open up the air inlet side with the slip-on and I would say you better get one.
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