What kind of service u want?????
Every 5000km change engine oil, tighten chain, pump tyre, lube
chain
every 10000km change spark plug, wash cabarator
Every year flush coolant, flush brake fluid, change air
filter
every 2 years change tyres , change chain and spocket, change brake
pad,
every 3 years so a top overhaul, change piston and piston ring,
wash valve
every 5 years change 2T pump, clear exhaust carbon,
All these are the usual wear-and-tear item, if it finish earlier
than change as accodingly