Guys, i am new to owning a Blaster, and have a question that i am not sure is common i have not been able to find anything related yet. i just purchase a V Force 4 Tassinari, i was trying to replace it yesterday but found it does not fit due to the carburetor joint as you can see in the picture circle in yellow, do i need to buy a new carburetor joint flat ( if it exits) or do i somehow get rid of that rubber part by file it.