Thanks for that clarification. I knew that the boost bottle helped equalize air pressure, I just didnt know that it was supposed to get that extra air from the outside. Thus, I thought you needed two carbs or cylinders to make it work. I learned something new today.

 

Boost bottles fake out the engine into making it think the carb is closer to the transfer port outlet, when inlet pressure drops with a quick punch of the throttle it feels like an accelerator pump shot, so it doesn't add horsepower just some responsiveness to throttle movement at the lower throttle positions .

 

How come there not availalbe for a larger selection of atv's?

 

How many 2-stroke ATV's are there..5 or 6?