Tutorial: replace a light bulb in one minute YouTube In this video, Stijn shows you how to replace a bulb from a square headlamp Tomos change seals Is your crankshaft retaining ring leaking? In this video, Stijn shows you how to easily change crankshaft retaining rings. ... Tomos A3 / A35 / A52 crankshaft bearing replacement In this video, Stijn shows you how to split your crankcase to replace the crankshaft bearings....