1 - Air filter, 2 - carburettor, 3 - distributor, 4 - valve lever, 5 - valve spring, 6 - flywheel, 7 - oil measuring rod, 8 - sump / oil pan, 9 - sieve for oil pump, 10 - fuel pump, 11 - crankshaft spurwheel, 12 - fan belt wheel, 13 - camshaft spurwheel, 14 - cam, 15 - bleeding for crankcase