I got one of these reed valves cheap on eBay last year, removed the mounting bracket it came with and shortened the nipple a bit to fit it in between the engine and frame on my '82SJ. On the discharge side of the valve, I use one of the 90 degree rubber hoses that formerly fed breather exhaust into the air cleaners. Bought a couple rubber caps at ACE to plug off the ports into the air cleaners. Losing the hose that used to come off the breather opens up enough space to get a small gas filter in between the carbs.