HarleyCT175

I am new at this. I have had a Yamaha 175cc dirt bike since I was 12 years old. Got it as a christmas present. It was my second motorcycle ever, my first was a Italian made Indian 50cc dirtbike. I am now 33 and wanting to fix the Yamaha up for my 11 year old boy. My father made it look like a dirt bike with a TT tank decals, stripped down look and knob tires. I am now researching the bike so I can figure out where to start in getting it to run. I can not find a number on the engine but it looks original. The number on the frame is CT1-082606 which tells me it was a CT175 Enduro? Is that right? Can anyone tell me what year it is? Seems like everywhere I look says something different. I will need a coil and a spark plug wire since it looks like it is missing now. The bike has been sitting for at least 15 years. The last time it ran it would not idle and would only run if you held the choke open all the time. The Mikuni carb needs to be replaced I believe. Anyone know if Yamaha still makes parts for these bikes? Where is the best place to get replacement parts? Where is the best place to get service/maintenance manuals? Thank you for your help.