[TrialsRider]

I concur the manual is little more than a guide, check out the “Parts requiring Periodic Replacement” list in my comp bike manual for some shocking recommendations:

Piston – Every Year, Piston Ring – Every Half Year, Transmission Oil – Every 3 races, Clutch slave piston seals – Every year, Radiator coolant Every year, Brake Hose – Every year, Front Master Cylinder Assy – Every year, Fork oil – Every 3 races and my personal favorite; Spark Plug Cap – Every 3 races
Has anyone here ever replaced a Spark Plug Cap due to “Contamination or emulsification” ?:i