for the trx i just like to know what im dealing with. theres no problem with it or anything. I'm an engenering student and wanted to compare the 2. The YFZ manual shows that there is 2 nuts on the throttle cable outside and inside the carb. I can pull the throttle cable ALL the way past the end of the threads and see bare cable. so the inside one has to be loose and just binding up. i would say that the throttle is held open 1/16 of the way, at random times. I'm not going to have time to open the cover and look at it till tonight. If you want to see some pictures of it, i need a lesson on how to post pics.