If they are both for the 4-strokes, they are prolly slightly different, but the end result is that you can install a 2-stroke carb.
Mine is an "NT intake" but I have an RT carb installed. Either way, the factory 4-stroke carb isn't very reliable and hates ethanol.
I was wondering if you could tell me why i would be loosing oil where the lil black hose goes from the breather to the side of,the engine