Sirio Evo 2 Carb Quesion??
I just recently bought a Evo2 5 port engine. This is kind of a dumb question but, in the plastic carb there is a machined piece that fits inside the air inlet. Is this a carb restrictor or is it to be used at all times? I was just wondering if I'm suppose to take it out for more power? It looks like it is around 5.5mm.
Thanks in advance,