Yes those cams are known to have spring and actuator problems.
It can be easily fixed in the backyard using a torch. Heat the compression release pin to a cherry red and bend it out. Install new springs.
In addition the counterbalancer chain uses a spring loaded adjuster. The spring sometimes breaks off and the adjuster will not tension the balancer chain. I used to pull the side case off and manually adjust the chain, then safety wire the adjuster without a spring. I also had a bolt back out internally and catch on a rotating part. Of course the bolt broke right off and got caught up in the works. I really cannot remember what the bolt was for. however that fix was easy too, remove the broken bolt and parts, replace and locktite bolt.
Those engines can be tempermental, My piston cracked between the rings. I replaced the piston and rings, problem solved for about 7K miles.
I even lost the waterpump shaft (balancer shaft) at the impeller. It just broke right off. So rather than replace the shaft (which took 9 months to get) I just welded in a new 6 mm bolt in place of the broken impeller shaft. It worked great.
All this kinda seems cheezy when you think about it, however If I had to wait for parts, I would never have had a running bike.
Chris