EGR/PCV Reed valve set up on the KZ.Thoughts/Etc?

OK.So on the '80 750ltd,I kept the "PCV" system and even got new reeds and valve from the Dealer.BIG BUCKS!! On the 1100A it came with APE block offs with the reeds still in the Valve cover.I can't really tell a difference on the 750,but since the 1100 is in tear down/rebuild mode,do I keep the block offs,or retro fit to the "PCV" system?IDK if NYS requires them for inspection or not.Does anybody have an opinion on the validity of blocking it off or not?I want to go 4-1 and pods,with a Stage 1 jet kit.Motor has 30K on the odometer and looks clean inside.THANKS!!!

If your worried about emissions, keep it. It helps to keep exhaust temps down a little too, but not much.

GL

I pulled the reed vales and pollution stuff off my 82 kz 1000 and replaced with APE covers. I dont have a bike inspection program here yet.No difference noted.bj

Just to be clear, the reed valves are not part of a PCV system. The reeds and ports on the top of the engine don't go into the crankcase, they go into the exhaust system after the valves. They let fresh air get sucked into the exhaust system to allow unburnt fuel to continue burning after exiting the cylinder. The diaphragm device above the engine shuts off the flow of fresh air when you close the throttle which prevents a lot of backfiring in the exhaust that would happen otherwise. This system doesn't have much affect on jetting or performance as long as it doesn't have any vacuum leaks.

The reason you keep the reeds when you use the block-off plates is because the reed cage frame has the rubber seal integrated on the frame. So usually you keep the reeds just for the seal.

The crankcase vent is on the transmission and was plumbed into the airbox so crankcase gases would get sucked into the carbs.

U r right sir. I did keep the crankcase vent in to the stock air box,as in addition to crankcase fumes, the vent will collect moisture if plugged off and not routed into the box and I didnt want that returning to the crankcase.