QKENUF4U said:if its holding the valve open all the time then yes it wont start/will be hard to start. i wish a cam change was all ya had to do. if you swap cams then it would be best to just do a COMPLETE head/cam swap (the cams are matched to the head)
You dont neccasarily have to change out the entire head. As long as the surfaces of the head are not beat to death you can change out the cams.
not that ive ever seen. as for just replacing the cam, the reason i said replace cams/head as a set is because they are machined as a set to match clearances. if you just replace the cam ya might want to check to make sure the clearances are not too tight.klxrider said:is there any repair kit for the cam to replace the rivets?