Having difficulty engaging first gear, especially when the engine is hot so I decided to examine the clutch plates and re-adust springs if necessary, but one of the adjusters won't unscrew, just locks up against the spring. I've done a search of the forum but so far haven't found anything on this.
The spring endcatches against the adjuster nut dimple, it can be eases over with a sharp edge, a dinner knife will do it, its supposed to do this to prevent the nuts backing out, after a turn or two it should go more easily.
71 Devimead A65 750 56 Norbsa 68 Longstroke A65 Cagiva Raptor 650 MZ TS 250 The poster formerly known as Pod
Actually not a dimple but a tooth on the back end of the adjuster nut. Turn harder, it will come; sometimes the tooth will break off. If it does, replace the nut at your discretion. I've reused nuts with the tooth broken off, and I've never had one loosen up.
What are you using to remove the nuts? I used to use needle-nosed pliers, jaws taped around a spacer, but this was awkward, so I cut a deep notch into the end of a wide screwdriver - works much better.
I've managed to free the nut, however no matter how much turning force I used it would not shift so I decided to drill out the dimple/tooth with an 1/8" drill. The thing was that when I was trying earlier to manipulate the nut I ended up screwing it down a thread or two so it was fractionally below the plate surface, so limiting my options.
The springs measure around 43mm so probably need replacing.