I just pulled the head off my 54 model 248 and pressure washed it before taking it apart. After washing , I was going through the manual and saw a mention of caps on top of exhaust valve stems, but didn’t see any during disassembling or clean-up. Do all 248's have these caps on exhaust valves or just some models. I usually notice things like that, but was in a hurry and could of missed it. Thanks for any information.
