No , I was wanting to make sure you KNOW the lock washer everyone calls a lock washer looks like. There are a multitude of different washers called lock washers. The Nord-washer Phil is speaking about is probably the best permanent type lock washer you can use. This is not for repeated loosening and retightening w/o bolt replacement. This clutch set-up would be what you would use these for.
There are a bunch of different types of washers on the market. A person just has to decide what they want to use and use that style until they change to something else . And yes , the lock washer and flat washer used on most everything is pretty soft and just adequate. SAE flat washers and grade 8 washers are better than nothing .
The proper term is "stuck". You can clean all of this off w/a Roloc disc and get a smooth surface. Spray Brake-Kleen on everything to get the rust and dust off all the metal parts. Also , spray dry film graphite on all metal splines to ensure smooth operation and keep things from rusting.
IDK about the hydraulic clutch system on this bike BUT on cars , trucks , etc. , they are all constant contact , i.e. no free travel. Maybe this is affecting the clutch operation ?
IF you are doing any work to this clutch slave cylinder you do not use any petroleum products to clean , rebuild, parts washer or spray on/around this component. When you go back together with things you can use a brake assembly fluid but no petroleum products .
Just about the time it starts to turn red , you take the gun away and off it comes . I have used one at work and it works better than you can ever imagine.