I have a yt175, that's all the nameplate says, is there any way to find what the last letter is, or any indications of the year. I'm also looking for a carb rebuild kit, are those kits typically sold for these or do you have to order the individual parts. Having a hard time fibeing a rebuild kit with the model #, I'm trying to get time to pull the carb for more info. Thanks in advance for the help.