To differentiate between 180 and 150 cc pulsars. Review on Bajaj Pulsar 180

Hi Everybody,

can some one pls tell me how to differentiate between a 150 cc engine and 180 cc 's . I want to know the power and cc of the bikes from outside the bajaj service centres. Not only for bajaj any other bike. Pls give me your valuable comments .

I am asking this because my black beast has done 2400 kms on its odometer till now , I had not rode it above 50 km/hr until 2000 kms now I am getting the pulsar maximum speed not more than 100kms/hr however fast I go . He has not yet got his 2 nd service is there some limiting of top speed by bajaj before having done 2 service , pls let me no fast because I bought him for his top speed of 124 km/hr as claimed by bajaj.

Could you also explain the connection between weight of the rider and the top speed of a vehicle , does the more weight on a vehicle reduce the top speed and also the top speed of 180 cc black pulsar with a pillon rider. Thank You