As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE VACUUM LINE GOING TO THE FUEL PNEUMATIC PUMP HAD AN IRREGULAR PART INSTALLED. THE MM REQUIRES A HARD, NON-COLLAPSIBLE, FUEL RESISTANT LINE. THE LINE INSTALLED WAS FLEXIBLE/COLLAPSABLE AND HAD A 45 DEGREE KINK ON THE VACUUM SIDE. THIS MAY LEAD TO LESS VACUUM TO THE FUEL PUMP LOWERING THE CAPABILITY OF THE PUMP. RECOMMEND FOLLOW THE MFG PROCEDURES WHEN INSTALLING THE ENGINE.