After a lovely 40ish mile ride in the sunshine last week I kept my Arrow running to empty the carb as usual but noticed an unhealthy rattle which I recognised as the primary chain needing adjustment. The chain had more than an inch of slack, not good!!! Turning the adjuster made no difference so either the rod or the nylon saddle nut, or both are stripped.I will be removing the chaincase in a couple of days to see. This prompted me to wonder why the saddle nut is made of nylon. The only answer I could think of is that being nylon it would be a nice tight fit on the road to aid assembly. Or could it be made in brass which is less likely to strip. Anyway has anybody tried making the saddle nut in another material, did it work and what is the thread?
Thanks for any ideas, Terry Langley.