Tohatsu 4 Stroke MFS 2/2.5/3.5A Outboards Service Manual, Page 65Get this manual
Fuel System (Carburetor) 6) Inspection of Carburetor
1Check air and fuel passages for dirt in the jet and foreign substancesClean carburetor body with cleaning fluid2Squirt all passages and jet with compressed air
CAUTION
Point the compressed air downward, taking care that detergent and dust do not enter the eyes and do not damage small parts of the carburetor Do not use wire to clean the jetDoing so may enlarge the jet hole, resulting in significantly reducing the performanceCheck main jet 1, main nozzle and slow jet for dirtClean or replace if necessary