I will pull the pump back apart and check or make a hole when I tear back into the sled. I’m going to have to pull the motor back out of it to deal with a leaking water pump. The carbs are Mikuni 39.5mm units and I have had them apart twice for cleaning. Can anyone tell where I can find the original jetting information for the Invader and 4/6, I would like to compare them to what this currently has in it. I am not having any luck finding the flanges for the twin pipes so was thinking about making my own, if someone could post a pic of theirs it would be super helpful. Thanks