Yes Yes,

This is the low pressure check valve that helps the motor at low idle for a long period. Example is after a spin...sometimes if you jump on it too hard the motor can burp. This is only on really long idle times. Like in a spin. You will never see it on downlines or typical idle conditions.

This little item is suppose to stop this. I spoke to Tesuo Yamada at the NATS this year about it. I have not used one yet, BUT will try it out and let you know.

Troy