I'm the person who has this engine and offered to sell to
1QwkSport2.5r . The specification sheet (in the box) covering all Enya engines lists the R120 with muffler at a weight of 32.1 ounces, the regular 120 is listed at 28.7 ounces with muffler. This engine with muffler weighs 32.7 ounces on a US postal scale accurate to .1 ounces. Mr. Tiffitech, do you have any documentation that would support your claim that this is not an R120 model? If so, please present it here in this forum.