Kickstarter problems can be caused by the carrier sprocket teeth braking up and not gripping properly. Item matches the dimensions and design of the original. Note: different lengths are used in Peugeot engines. The item listed here has a shaft length of 12.5mm (height of the toothed part) and is used in Peugeot models with Mikuni oil pumps! Note: For Peugeot scooters with Keihin oil pumps (item no. 21080). Models with Euro2 engines from 2004 on and electrical oil pumps use item no. 16002.