I am not sure the SS180 requires a "fuel line grommet in air box (113060)". Though talking with David at First Kick Scooters I've learned. . . on most largeframes there is a hole at the bottom of the airbox for the fuel line to go up through (at an angle) to the carb banjo bolt.
I have not found that hole on my SS.
The "throttle/choke grommet (48171)" is exactly the same as the "wire harness / frame grommet" so make sure that you order QTY: 2 of one of them. They are the same part with two different names. Note that the spark plug is just in enough for the photo. It is not all the way in. You can see the throttle/choke grommet below.
I believe the wire harness drops through this hole and connects to the HT coil. I need a grommet to go here -- pictured below:
David, from First Kick, just emailed me:
"Jeremy, I talked to the mechanic and he said that someone drilled that hole. It is not suppose to be there." -David
This is a comment that Paul B. posted, but needs to be on the front page so that you all read it, because it is VERY helpful:
1. No, there is no fuel line grommet for the air box on the SS. The fuel line never enters the airbox like many Vespas; the GS 160/SS180 air filter housing assembly sits ON TOP of the carb.
2. ABSOLUTELY, POSITIVELY, remove that spark plug wire end cap. The clearance between the SS engine cowl and the spark plug is WAY small. The first time your wife hits a good bump in the road, BAM, that cap will come up with the engine and slam the underside of the cowl and put a nice dent in it. Only use the factory item (looks like a bobby pin sort of)with the original soft metal cover. I've seen so many SS's with this damage!
3. The hole you are pointing to is homemade and should have been filled during the restoration. The harness comes through from in the body to the engine area through the throttle cable/choke cable/HARNESS grommet.