1996 Johnson Evinrude "ED" 90 LV 125C, 130, 200, 225, 250 Service Manual, P/N 507128, Page 91Get this manual
Pulse Limiter Fitting
r:;l r:;J 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 operationA clogged check valve will limit fuel and oil supply, causing ote serious power hea amage1Remove the pulse limiter fitting from the crankcase (V4) or pulse hose (V6VB)f31 2Backflush the valve with OMC Carburetor and Choke Cleaner to remove any carbon depositsIf you find excessive carbon deposits, check the engine for causes of backfiring: Linkage adjustments incorrect Engine temperature incorrect Crankcase air leaks Carburetor problems Extended use of flushing attachment
3V4Clean the threaded portion of the fitting and apply OMC Pipe Sealant with TeflonInstall the fitting, and secure the pulse limiter with clamp V6, vaPosition the fitting in the pulse hose with blue pumpSecure hoses with nipple facing the clampsPump For function tests of the System, this sectionpump, refer to Testing Fuel