I understood that this Generator wg-500 WG 3560 was no longer avalibile. I also Have recieved 3-500 Watt simular to the 1018 execpt I think it is a 1058 because the grenerator peek production is at 1050 rpm. I need to know what is the sprocketnumber and if it is Metric or ANSI. It has 9 teeth with an OD of 1.680\" inch US . Please send spec. on the three motors I have already perchased. I want to receive: Product Spec . Price Payment . Delivery Info . Product Catalog . Minimum Order .