It is almost NEVER a good idea to spend money on just throwing parts at a problem based only on a wild guess.
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Hey Atch. Appears that you could use an owners manual - what BRP calls an Operator’s Guide. Everything you needed to know was in there. That’s different from a service manual and is a free download here.
http://www.operatorsguides.brp.com/I...5-68752cca7275
Just use the drop down menu in the upper left to select Roadster, then select the year and model.