On the Trx450er the weight for the decompression system is in the way so you can not use a cam sprocket holding tool. My Clymer manual says to use a flywheel holding tool but I remember reading about putting the quad in gear, holding the brake, and using an Allen key to hold the crankshaft so I can break the cam sprocket bolts loose. This sounds good to me but I don’t want to strip the crankshaft where the Allen key fits in to turn it over. You guys ever do it this way? Will the Allen key strip the crank?