I've read hundreds of pages on G1 gas Yamahas on here but do not remember seeing any information on the tube between the oil pump and exhaust. I BBQ'd my exhaust this past week end and was surprised at how little of flame came out the open ends. While installing exhaust back in I removed the tube (in the photo) to find the end was plugged ( I assume by design) with a very small, moveable wire. Can anyone tell me if this is normal? How can enough oil make it through this tiny hole with wire in it to clog a muffler? (Photo is from post by "Rosati" - Thank you)
Muffler.JPG
Muffler drawing.JPG