These used to have a problem with the small line running to I believe the pressure switch. A small black line running through a hole in the head & motor mounting base with no protective grommet. The vibration would cause the line to rub against the raw edge of the hole & wear a hole in the line.
Originally Posted by Bill Arnold
"Forget the flat stuff slap something on the spinny thing and lets go, we're burning daylight" Bart Leetch
"If it ain't round you may be a knuckle dragger""Turners drag their nuckles too, they just do it at a higher RPM"Bart