Do you use a sensor to start and maintain the engine? SR custom vehicles are often out of stock. After all, Convenient center stand. Recommended for those with normal specifications. We recommend replacing the side stand at the same time. This is a set of genuine Yamaha parts that can be used safely and securely. [Yamaha SR400/SR500 (SP C S L T D) : 400cc/500cc] By Owner: Compatible Model: 1978~ Vehicle Format [2H6 1JR/2J2 1JN/RH01J/RH03J] Frame No. 313E H 329E] Engine Model Reference Model Name [2J3 3X4 34A 33Y 3GW 2H6 3X6 3X7 34F 34E] [1JR 1JN 583 1J7 1E6 3GW 3HT] [3HTF 3HTR 3HTS 3HTU]