Hello,
Several weeks ago raised seat on my 4200 and it looked as if the mounting strap for the fuel tank had broken. Tank setting at an angle and strap not touching top of tank.
Upon removing the filler cap everything returned to normal. On inspection noted breather hole in cap was plugged, quite substantially. Sharp awl, brake cleaner and compressed air fixed that. Everything normal again.
Surprised at the amount of vacuum the fuel pump created.
Herb
Several weeks ago raised seat on my 4200 and it looked as if the mounting strap for the fuel tank had broken. Tank setting at an angle and strap not touching top of tank.
Upon removing the filler cap everything returned to normal. On inspection noted breather hole in cap was plugged, quite substantially. Sharp awl, brake cleaner and compressed air fixed that. Everything normal again.
Surprised at the amount of vacuum the fuel pump created.
Herb