Stinger Pro 125cc Twin Gas Engine with Front Starter & ESC
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Stinger Pro 125cc Twin Gas Engine with Front Starter & ESC
The Stinger Pro 125cc Twin brings the sound and smooth operation of a horizontally opposed gasoline twin to large-scale RC aircraft. This version has a front-mounted electric starter and includes an electronic speed controller (ESC) for the starter. Its Walbro carburetor, Stinger DC-CDI ignition, and angled CM6 spark plugs complete the engine package.
Starter location: This listing is for the front-starter configuration. Stinger also makes a separate back-starter version. Check your aircraft's engine compartment and mounting clearance for the front-starter arrangement before ordering.
Specifications
| Engine type | Horizontally opposed, two-cylinder, two-stroke gasoline engine |
|---|---|
| Displacement | 125 cc |
| Bore | 1.85 in. (47 mm) |
| Maximum output | 13 hp, manufacturer specification |
| Operating speed range | 1,500–9,000 rpm |
| Recommended two-blade propellers | 27×8, 27×10, 27×11, 28×8, 28×10, or 28×12 |
| Starter | Front-mounted electric starter |
| Starter controller | ESC included |
| Carburetor | Walbro |
| Ignition | Stinger DC-CDI electronic ignition with automatic advance |
| Ignition supply | 7.4–14 V; select and connect the ignition battery according to the supplied instructions |
| Spark plugs | Two NGK CM6-type plugs |
| Cooling | Air cooled |
| Gator RC SKU | STNG-125-TWIN-AS |
Included and required
The manufacturer's listing identifies the front starter and its ESC, electronic CDI ignition, mufflers, spark plugs, gaskets, bolts, throttle arm extension, and manual. You will also need a suitable propeller, gasoline, two-stroke oil, and appropriate batteries and wiring for your installation. Follow the instructions supplied with the engine and starter for their separate electrical connections.
Weight note: Published engine, muffler, and ignition weights total 5.87 lb (2,665 g). The manufacturer's front-starter page repeats those component weights but does not provide a reliable installed weight including the starter and ESC. Check your actual package before entering a ready-to-install weight in Shopify.
Replacement parts
- Shop Stinger 125cc engine parts, including gasket, reed valve, prop hub accessory, and Pro muffler options.
- Shop Stinger replacement spark plugs. Select the SCM-6 Iridium option listed for the 125cc Twin; the 1/4-32 option is for different engines.
Fuel and break-in: Use premixed gasoline and suitable two-stroke oil. Follow the manual supplied with your engine for the oil ratio and break-in procedure.