We have a WC with 5 gallons of bones fuel ran through it and for the last 3 races this motor has been driving me crazy. Starts and idles great, about 6 minutes into a race it falls on its face, no bottom end no top end, when he brings it in it won't stay running and then its hard to start. I have installed new fuel tank and lines, new clutch, new 9901 pipe. Can anyone help or is it time to install the new keep off?
Doug