435. Replace the gasket with a new one. Reinstall the fuel joint assembly and tighten the screws firmly.3.11 Checking and replacing anode(s)Inspect the external anodes periodically. Remove scales from the surfaces of the anodes. Consult yourdealer for replacement of external anodes.CAUTION:3.12 Checking top cowlingDo not paint anodes, as this wouldrender them ineffective and cancause more rapid enginecorrosion.Check the fitting of the top cowling bypushing it with both hands. If it isloose have it repaired by your dealer.