hi pal ,if the engine is getting flood you will now wen you try accelerate the engine will bog,but the best way is first HSN 3 turns from close- and if your carb has 3 needle settin follow this ,if you opend the msn you shoud close the Lsn but don go with the number.i recoment that tune the carb by looking the closing part of the carb.if you could tell me what kind of carb you have i then could tell you how to tune your engine.