Chapter 5 – Fuel feed system
Service manual AJP PR3/PR4 5 - 7
When washing the pumps parts, a suitable
solvent must be used to not damage the
rubber membranes or diaphragms.
Thoroughly clean each component of the
pump and blow gently to avoid damaging the
plastic membranes and/or the rubber base.
Assembly of the fuel pump
Make the assembly in reverse order of
removal.
Confirm that each part is installed in the
correct position (as notes or reference marks
made previously) in order to ensure the
proper functioning of the fuel pump.
At the end progressively tighten the four bolts
"X".
Installation
Installation is in the reverse order of removal.
On models with 240cm
3
engine, the fixing
screw on the right side of the fuel pump
should be installed with the nut facing up to
not prevent the cover removal of the inlet
valve, where it is necessary to further adjust
the engine valves.
When tightening the fuel pump on the frame
strengthening only apply the specified torque
not to break the pump.
Tightening torque:
12N.m (1,2Kgf.m)
Connect the pipes in the correct position.