well i was just testing my sled today, just finished putting a mach1 engine it in..
It idles perfect, 2 shots of prime and starts with one pull ( I love primers now, lol )
anyways, when i went to take off it stats to bog really bad, then when im at 25kph
it just rips, then i slow down it make like a pop or a craking sound and i can bearly take off again because it bogs..
it has KN filters on it because the mach1 aribox would fit in my sled, so im going to need to jet the carb or somthing soon.. but i dont know why it bogs like that..