there must be something wrong with ur blaster. WHAT a joke!!!! there isnt a 250 cc 4 stroke under the sun that can touch my blasty!!! maybe with a power adder( juice, or boost) other than forget about it!
blasters arent slow ur nutzzz... i have ran neck 2 neck with a ( supposedly 140cc bore) yz 125 . there is about a 200lb weight difference and only 75cc difference.do the math and the dirtbike shoud have spanked. this was on cement also. and i do have a vid. set up right the blaster is a sweet machine but just like anything u cant just expect to slap parts on and have a race machine. stock the blaster is a turd put a grand in the engine and for a pipe and u will hand over some asses