"I have a 2006 DF 140 on the b
"I have a 2006 DF 140 on the back of My Blazer Bay and I am having problems with it. I can run all day as long as I stay under 5000 rpm`s, but when I get to 5000 rpm`s the motor drops the rmp`s back to idle which is between 5 and 700 rpm`s. I have drained the...