1993 Johnson Evinrude "ET" 60 degrees LV Service Manual, P/N 508286, Page 64Get this manual

1993 Johnson Evinrude "ET" 60 degrees LV Service Manual, P/N 508286, Page 64

Pulse Limiter Fitting
16 The pulse limiter fitting for the VRO pulse hose has an integral check valveThe check valve is not serviced separately, but must be clear to allow normal pump operation clogged check valve will limit fuel and oil supply, causing serious powerhead damage
1Remove the pulse limiter fitting from the crankcasef171 2Backflush the with mild aerosol solvent to remove any carbon deposits