A while ago while being incredibly stupid I took off the right exhaust cam chain cover and quickly put it back on. No harm done, timing remained in tact and the bike is running great. Thing is, I damaged the gasket pulling it off and have ordered a replacement one. I am hesitant to tempt fate twice, so I'm wondering what the best way would be to ensure the chain doesn't move when replacing the gasket. TDC on the right side? Tactical screwdriver to prevent it from moving?