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and SYM DD50 Vespa / Lambretta Vintage 2-stroke performance tuning (requires manifold) Technical Specs
Choke: Integrated Manual Pull-Button
Kickstart lever for most largeframe vintage Vespas from 1960 to 1977
Brand Model Genuine Hooligan 170 / Hooligan 170i Not legal for use in California on pollution-controlled vehicles
Prima 4mm Main Jet Tuning Kit - Keihin PB & CVK Carburetors Clutches (manual) and SYM DD50 Vespa /Fine Tune Your Fuel: 10 Piece Prima 4mm Main Jet Kit Standard factory jetting is almost always "lean" to meet emissions standards, which can leave your scooter feeling sluggish. The Prima 4mm Main Jet Kit is the essential tool for riders installing big bore kits, performance exhausts, or high flow air filters. With 10 precision machined sizes, you can eliminate "flat spots" and find the perfect air fuel ratio for maximum throttle response. The Tuners
