Hero Motocorp — Engine smoke level very high and engine noise

Please give me any response such as very early.

First of all smoke was blue on exsaust? is it on start up /warm up quite a bit? after warm up smoke has gone?if this is thats fine..when the bike running smoke was not there? and when engine is cold engine sound is good and when heat sound like kit kit kit...if this is your bike is fine. i have faced this problem earlier. my hero bike had all the issuie. i also complained in hero they changer my cylinder and priston and priston rings. therefore also the problem remains. after all these i decided to change my engine oil to 20w40 and change my sparck plug.i suggest you to change these.the spark plug has a seal that seal engine oil not geeting into priston.my factory spark plug was not straight and not in shape.and also check the engine oil level because in hero service center mechanics pour 900ml of engine oil into oil chamber wherever my bike required 750ml.so excess of engine oil create extra presure that causes engine power down.after all these i have solved my issuies and hero mechanics could not do anything and also they said earlier in new bikes some smoke can happened..its normal.i was stunned after hear that. hero engine oil is third class.it could not go after 1200km.although hero claims their oil can go 3000km..what a joke.