This is a BRAND NEW aftermarket UNI Brand replacementair filter fora 1981-1983 Yamaha XJ650 Maxim and Seca. This filter will also fit a 1981 - 1983 XJ750 Maxim ( including Midnight Maxim) and Seca . This brand new filter is a direct replacement for the original filter and will work great in your bike with no change in performance and no need to re-jet or mess around with your carbs! . Good luck and buy now!
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