Join Date: Feb 2013
Location: Happy Valley, NJ
If you're just doing a valve check, and not an adjustment, it's pretty light on needed replacement parts. A new o-ring for the crank end cap, a crush washer for the indexing inspection cap (both on the left side of the crank case), are called for by the book, and cheap enough. The valve cover gaskets should be reusable with some care during removal, but you'll need some RTV-type sealant when you put it back together whether you reuse or replace the gaskets; no gaskets on the cam holders, but these don't get removed during a check anyway. No need to break into the cooling system, though removing the radiator gives you a bit more working room.
Anything else at this point would be a target of opportunity...oil and filter, new plugs, air filter, coolant, etc.
I did a check and adjustment over the winter; additional parts for an adjustment (for me) where new crush washers for the cam chain tensioner bolts, and ~$5 for shims from Amazon (I was able to use the front exhaust shims on the rear exhaust valves, so I only needed to buy one size). (If you remove the entire cam chain tensioner mechanisms instead of just the end bolts, you'll need to replace those gaskets.) The manual also calls for using a moly/oil mix when reassembling the shims/buckets/cams, but I made do with some engine assembly lube I had on hand. For the adjustment, I did remove the radiator, and replaced the lost fluid with Engine Ice which I also had on hand.