

TestMaster said:Cannondale27,
I would agree if his sled was coming in for a major overhaul that your selected actions should be evaluated.
This a new vehicle and in most cases locktite is not used in assembly. Getting a good clamp load and a minimal amount of fastener stretch is the ideal joint.
When you start adding locktite you now have a lubricated fastener and different torque values apply.
I do agree that having a clean fastener set is essential for good torque retention but would not like to see these new surfaces retapped. Hand tapping is never as good a process as the roll formed threads on a good fastener. We don't allow suppliers to make bolts or screws by cutting the threads. Seen too many failures where the heads pop off. On retapped nuts you can recut the minor diameter enough to reduce the clamp area by 20% or more also causing premature failures.
In this situation I believe it best to keep it simple and enjoy the ride, remember that Yamaha had their QC people on site which does not insure everything is perfect but provides a warm feeling that the manufacturing and quality systems were operated in a controlled manner. I would bet that they have a very high confidence level in the production process exceeding 98%.
It would be difficult for you or I to equal that in our own garage.
PS: your correct, torque striping is a great idea!
I didnt mean retapped I meant to clean them. You use a threadchasing tap for that if needed. It will not cut the threads at all. As for Loctite affecting torque value. Maybe. But is not relevant and should not discourage anyone from Loctiting. Personally from what I have seen on my own sleds I think 98% is accurate as far as torque met if you include engine itself but Yamaha is very lacking in use of Loctite. There were numerous recalls because of that on my Phazer and two subframe bolts fell out. Proper Loctite job and torquing with paint pen marking has had 100% success rate with me. Easily accomplished in garage. Point I was making is do it right or best to leave the bolts alone.