I rebuilt the top end of my 03 450R and everything is running great, I am a little paranoid thought that I did not torque my hex screws on the upper cam chani sproket enough, nor did I clean up the threads as well before applying loctite as I should have. The last thing I need is one of these bolts vibrating out over time and destroying my enging. I am thinking of removing the cover and re-torquing the bolts but struggled tightning them without the engine turning over. I ended up putting it in gear and having someone hold the rear brake to tighten, but it wasnt the best. Is there a way to block the cam chain sproket to get it torqued well?