I just found your site. I grew up on street and dirt bikes in the 1970 and have owned them off and on since then. I aquired a Yamaha XT350 in a trade about a year ago. It is pretty straight but had been under water and was locked up when got it. My son, who is 14, wanted to get it running so we went to work on it. I need some help with the valve timing and will get on the tech section for this.