2020 XSR9, Shock Factory M rear, K-Tech fork pistons
Hey Lou, you best me to it by a couple of years! My apprenticeship began in 1970 when engines were being rebored before 100.000 miles and I still have the callouses on my hands from lapping in valves at 30/40 thousand miles!Engines are much cleaner now. When I stated my mechanics apprenticeship in 1968 getting a "decarb" at 20 or 30,000miles was normal.
Oils, fuels and metallurgy have moved on a lot since although it's a nonsense that European engines are still chewing up camchains and sprockets due to cost cutting measures sourcing cheap materials........