Application —-Manufacturer Part Number: 3HN-85540-10-00, CDI 3HN-85540-10-00 Ignition CDI CDI Box CDI for Yamaha. Especially fit for Yamaha Big Bear 350 YFM350FW 4×4 19901994. It is your best purchase option, take it home quickly. big bear cdi Efficient connection —-The function of this ignition module is to switch on and off the primary circuit of the ignition system according to the ignition signal sent by the ignition signal generator, so that the secondary of the ignition coil generates high voltage. for cdi box yamaha big bear 350 1987 coil ignition big bear 1991 High-quality and durable—– This ignition delay module is made of high-quality ABS material, which has the greatest durability. Directly replace the old or damaged ignition delay module. Please rest assured to buy and use. for cdi box for 1991 yamaha big bear 350 coil for 1991 big bear Perfect Compatible—– Fit for Yamaha Big Bear 350 YFM350FW 4×4 1990-1994;Fit for Yamaha Moto 4 YFM350ER 1992-1994.Ple