Tohatsu 4 Stroke MFS 2/2.5/3.5A Outboards Service Manual, Page 39Get this manual
Maintenance 3Inspection Items
1) Inspection of Top Cowl
1Push top cowl to check for looseness and state of closing
2) Inspection of Fuel System
1Remove top cowl and check each section for fuel leak, dirt, deterioration and damagesClean or replace parts if necessary