Champion 2000 extended run

I made one with a generic vacuum pump from the lawnmower shop and I used the breather hose in the valve cover (with a Tee) to get the pulse. Works just fine when I need it which is rarely. The 2000 watt Champ is really stingy on fuel ueeage anyway. I originally had it on my Yamaha 2800I but when I sold that, I took and put it on the Champ. Same deal on the Yamaha, pulse from the valve cover breather hose.

That Yammy was a bit harder on fuel.

Hope that helps...