After 18 years of riding my Skorpion I noticed a brown stain on the swinging arm.
I thought I might just plug a small hole at first, but it sort of kept getting bigger and I found another. On the non chain side, the chain side is well protected!
Fortunately Grahams in Taunton were able to supply a new one. Fitting new bearings was the trickiest part, and remembering how the suspension linkage all goes together.
Anyhow it is now nearly back together, just in time for the snow.
For the record it is reckoned to be mainly a Yamaha part. Squirted Waxoil down the new one. Didn’t know you could still get that stuff until a visit to Halfords.