samui

Hi friend: j have big problem on my speedester 200 sc, this summer my right engine alwaise cavitation, whit meccanic ceck more parts - wear ring is ok- change carbon ring and rubber is new-impeller is ok- drive shaft is ok- new aliniament engine- j have alwaise cavitation problem. We swap pump and problem alwaise in right side, please give me HELP . please give me your phone number j contact you for help me, j live in Italy. Important, last yare j move engine to rear hull and for 10 days my engine no cavitation , after this days return my problem , j and my meccanic CRASY. SORRY for my english ciao HELP ME- HELP ME-