I wish I would have just bought this instead of trying to make what I had work better. I have a 1981 Honda XL80S I picked up and the previous owner threw away the OEM carb (ARGH!!!!) and put some cheap junk on it. It ran, but not well.
This carb feels like a solid part, way better built than any of the cheap knock offs on ebay/etc. Right out of the box my 80 liked it and idled almost perfect. Took just a minor adjustment on the idle screw. It runs and rides like a dream now. I did pick up the extra pilot and main jets. I may play with changing the main jet to see if I can increase initial throttle roll on response, we'll see. I hate to mess with it when it runs so nice now.
Customer service here is fantastic, I put my model number on my order, and they even contacted me to go over that they didn't know if it would work on my bike, if I wanted to proceed with my order. TBolt will be my go to place now for all my small bike needs. Super thrilled.