RE: K&B .65 Sportster
OKguys, I got it running with the carb barrel wide open last night, but it didn't sound like it was running very fast. I didn't bother with a tach, but it sounded like it was only at 7,000 to maybe 9,000 RPM. That was with added castor in the fuel and with the needle valve cranked about two turns out from where I had it running previously. I am running this thing in an enclosed room, so I have a clear plastic hose attached to the muffler and running to the outside to keep slobber and noise and stink outside the room. Will that hose make any difference in the running? Seems to me the back pressure would be produced where the 1/2 in aluminum stack exits the muffler and anything beyond that would have no effect. Is that wrong thinking? Sure makes it quiet and tolerable inside.