Kuryakyn Bluegrass Breather Kits 93-99 Evolution with Mikuni HSR Carbs

When you're working on your Evolution engine, especially one fitted with Mikuni HSR carbs, managing crankcase vapors is key to keeping things clean. Engines that vent crankcase pressure through the cylinder heads can also expel oil through those same passages. Venting this directly into your air cleaner can lead to an oily mess on the side of your motorcycle.

This Kuryakyn Bluegrass Breather Kit is designed to route those vented gasses upward. The banjo fittings and chrome tubes direct the expelled oil droplets back into the engine, so gravity does the work of keeping them contained. The included 34-inch hose gives you options for routing, whether you want to run it up and out or connect it to an optional catch tank for a closed system. This kit fits a wide range of Harley-Davidson models from the mid-90s to early 2000s, including popular bikes like the Dyna Super Glide, Softail Custom, and Sportster 1200 Custom.