Bike in question is a 1971 CL175K5, doing fork seals and new tubes from Frank's. I've successfully removed (using a hand impact- no problem) the phillips screws underneath that hold the damper rods. When I reassemble, what type of sealer in used for these screws? Doesn't seem to be a copper washer up inside, but there did appear to be a hardening sealer used on the threads. What's the best way to seal these up- experience has taught me to pay attention there, or they end up leaking soon after reassembly. Want to do this right the first time!