With a high-performance intake manifold, free-flowing K&N filter assembly, the Mikuni performance kit provides more power and fast acceleration response. Each kit includes a 42mm carburetor, manifold, air filter assembly, chrome air filter cover, bolts, detailed assembly instructions and an adjustment manual. These kits include a vent kit and use throttle and return cables as standard. Note: Models from 1984 to 1989 require the use of original accelerator and return cables or aftermarket mod. from 1990 to 1995.