22/10/2026
I can't stress enough how important clutch push-rod maintenance is.
Every 961 service, I remove the front sprocket cover, check installation quality and security of the front sprocket, along with removing clutch push-rods and slave cylinder components, to clean and regrease.
Failure to do this simple operation can very easily result in findings like this...where the dried out bearing ball bearing has burrowed its way through the aluminium cap, and into the slave cylinder piston. Also worn away the end of the 7mm push-rod π«£
This bike has done just a smidge over 2000 miles from new.
Edit: To do this yourself, unbolt the sprocket cover, which is held in place by three M8 bolts, using a 6mm Allen socket, long reach ball ended is often best, especially for access behind the oil pump hose banjo on some bikes. Don't lose the 5mm spacers. You'll see the components easily. Remove, clean and grease. Use a magnet to remove the second push rod and ball bearing. In total there is three ball bearings, one in the slave cylinder piston cap, follow by a 7mm diameter push rod, another ball bearing, then an 8mm diameter push rod, followed by the final ball bearing. Make a note of that order, especially rod diameters, for reassembly. For grease, I use what we used at the Donington factory, Silkon Pro RG2 synthetic grease.