Cifarelli
Model: M1200US
Serial: 03M78FI0119
This came to me for a quick mini service from a friend. It's a mister type blower. I did a spark plug and fuel filter, inspected the exhaust port for carbon (there was none). Washed and oiled the filter (at his request) and I cleaned the dirt off and it starts on the first pull. But it seems to idle too high. It idles at about 3800 and tops out at 6600 (I think that's too high as well). The idle screw is completely backed out so I'm guessing this is a mixture issue? There are red plastic plugs over the adjustment screws that I think I need to pull out to get at the screws but wanted to confirm. There's a high and a low. I'm guessing that the high idle and top end are a result of mixture problems? Any advice is appreciated.
Picture of carb screws
https://photos.app.goo.gl/BZFqB5eVL6o1Wji76
Thanks.