. MAINTENANCE SERVICE PROCEDURE MAINTENANCE SERVICE PROCEDURE 8. Close air bleeding valve (2). 4 - 40 9. Start th e e ngine. If th e engine does not start, t ry again by 1) Check that air bl eeding va lve (2) is closed 2) Tilt electric primi ng pump s witch (3) to ON position. 3) Try to start the e ngine whil e the electric priming pump is in operation. If the engine still does not start, wait for approximatel y 2 minute s, and then r epeat steps 2) and 4) After t he engine has starte d, run the engine for completely NOTICE Do not keep the starting mo tor rotatin g continuously for more tha n 2 If the engine wi ll not start, w ait for at le ast 2 minutes before trying to start