Universal Mikuni-Style Electric Auto Choke: Minarelli 2T

Eliminate cold-start frustrations with the Universal Parts Electric Choke (Auto-Bystarter) Assembly for 50cc 2-stroke Minarelli engines. Specifically engineered for Mikuni-style carburetors on 1PE40QMB / 40QMB engines, this plug-and-play replacement automatically manages the fuel-air mixture during startup — transitioning smoothly from a rich start mixture to a lean run idle as the engine warms up. If your scooter struggles to stay running when cold or bogs down after warming up, a failing thermal wax motor in your original choke is the likely culprit. SKU: 114-77 | MPN: 4746. Key Features Precision thermal actuator — internal heating element extends the plunger at the correct rate for smooth cold-to-warm transition OEM-spec 7.98mm plunger — precision-machined for an airtight seal within the carburetor enrichment circuit Plug-and-play 2-pin connector — direct connection to factory wiring harness, no splicing or soldering required Heat-resistant housing — protective shroud ensures consistent operation across all riding temperatures Technical Specifications Plunger Diameter: 7.98mm Mounting Hole Spacing: 30mm center-to-center Connector: 2-pin male plug Wire Length: 7 inches Engine Compatibility: Minarelli 1PE40QMB / 40QMB MPN: 4746 Weight: 0.3 lbs Dimensions: 4" L x 2" W x 2" H Country of Origin: China Compatibility Primary fit for Taiwanese 50cc 2-stroke scooters using Mikuni or Mikuni-clone carburetors with the Minarelli 1PE40QMB engine. Brand Compatible Models Adly Silver Fox, Thunder Bike CPI Oliver, Aragon, Hussar, GTR, Popcorn Eton Beamer, Beamer II, Beamer III Keeway F-Act, Focus, Hurricane, Matrix TGB Bullet, Key West, Delivery 50 How It Works This choke is normally open — it allows extra fuel enrichment for starting when there is no power applied. Once the engine starts, it receives electricity to heat up and close the enrichment circuit. If your scooter runs well for 2 minutes then starts smoking or fouling plugs, the choke is likely stuck open and needs replacement. About Universal Parts Universal Parts is a leading supplier of scooter and powersports components, offering a broad catalog of OEM-compatible replacement parts trusted by dealers and enthusiasts alike. California Prop 65 Warning: www.p65warnings.ca.gov