I took the cover off my 185 years ago with no ill effects and the same chain for many, many years. DID,EK, RK all make a o ring chain, I run an x ring on my shee and raptor and they are both holding up well. I learned to replace sprockets and chains at the same time and they last twice as long. piecing and parting only wears them in reality alot faster.
"If you are going to piss like puppy, Don't Get Off The Porch"
Trikes:
84' Suzuki ALT185 (old Orange)
85' Yamaha 225DX, piped and spaced ( First Girlfriend)
Quads
87' Yamaha Banshee, built and very very fast (The Whore)
01 Yamaha Raptor 660, built and piped (The Beast)
03 Suzuki Vinson, 26's and piped (The Crowd Pleaser)
Once apon a time:
85' Tecate 300 alky flattacker, 6 in over swingarm, 88 Suzuki 500"Quadzilla"PIA , 91 Yamaha Warrior Built and Modded. (luved that Baby Tank)