My El Diablo is loosing RPMs after it runs four a couple hours. It will drop from 3100 down to 2700. The kunkle valve is only set to 11 and it is a Honda 24HP with around 900 hours. I started putting a blower in the van to circulate air but it still bogged down yesterday. Any ideas? I might pull the Kunkle valve apart again and clean it. I cleaned it about 2 months ago.
Thanks
Thanks