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You have a 2005 Speedmaster, right? AFAIK the Speedmasters don't have removeable restrictor plates like the standard Bonnies and the Americas. At least my 2003 Speedmaster doesn't.



yes, 05'. There IS a restrictor, but i assume you mean it's molded in? I't doesn't seem to be tho i may be wrong. But one thing i do know is that there are a lot of minor changes to the 05's over the older ones, so it may be removable. For example some or all older ones have internal snorkels which mine doesn't. I'll check it next time i'm in there and see if i can feel the edges of the plate and whether it's a molded part of the AB or not.

On a side note, can anyone say whether restrictor plate removal gave them much of a gain or not? (with any necassary jetting or course) I hear people mention it, but unlike snorkel removal i never hear them make any claims about whether or not it was beneficial and how much.