Get new gaskets on the way, as the OEM s are intermittently glued on, and removing a cover with a reusable gasket intact is akin to a modern miracle. On the left side, your main concern is the wavy washer on the starter, locate it as soon as you remove the cover and make sure it's back in place on reassembly. I bought six cheap 6mm extra long cap screws and hacksawed off the heads and use them threaded in finger tight to hang the new gasket on as well as a guide to slide the cover on straight and even. Triumph machines the mating surfaces good enough that you can get away with Ian s method and just use Permatex and no gasket, if you want, but it will be essentially glued together the next time you want to pull back off. I use a new gasket with a light smear of gasket adhesive on the engine side and a light even coat of non metallic anti seize on the case side, I have had good results doing this and haven't had to change out a case seal yet, but I still keep a new gasket at the ready just in case it tears or whatever.
