I'd just like to start by saying sorry if this isn't the right spot for this question. I couldn't find anything else about it but I am new to the forum and can't navigate flawlessly yet. Regardless, I just bought a 1980 GS 850GL off of craigslist for $600. I've been cleaning it up a bit, saving money for parts and have just started ordering things. I have been ordering them off partzilla and have to ask: How do I know if I should order a model T or a model X part? Some pieces that I need (like a new petcock for instance) require me to choose between model T and model X parts. I can't seem to word a google search correctly to find the answer and hoped someone here may be able to help me.
Thanks.

Comment