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44mm Big Bore Cylinder Carburetor Kit for 47cc 49cc 2-Stroke Pocket Bike
44mm Big Bore Cylinder Carburetor Kit for 47cc 49cc 2-Stroke Pocket Bike
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Product Overview
Complete 44mm big bore cylinder and engine component kit for selected Chinese-style 47cc and 49cc air-cooled 2-stroke mini engines used in pocket bikes, mini dirt bikes, mini ATVs, quads, and similar applications.
The kit combines major top-end and intake/ignition components, including a 44mm cylinder and piston assembly, carburetor, intake manifold, air filter, ignition coil, and spark plug.
The 44mm bore is commonly marketed as a 53cc/54cc big bore upgrade for compatible 47cc/49cc engines. However, actual engine displacement depends on both cylinder bore and crankshaft stroke, so verify your engine dimensions before ordering.
Product Compatibility
| Vehicle / Engine | Application | Fitment Notes |
|---|---|---|
| Chinese Mini Moto | 47cc / 49cc 2-Stroke | Verify 44mm cylinder configuration |
| Pocket Bike | 47cc / 49cc 2-Stroke | Selected air-cooled engines |
| Mini Dirt Bike | 47cc / 49cc 2-Stroke | Compare cylinder and intake dimensions |
| Mini Quad / ATV | 47cc / 49cc 2-Stroke | Selected Chinese mini engines |
| Mini Racing Bike | 47cc / 49cc 2-Stroke | Verify engine configuration |
| CRX50-Style Dirt Bike | Mini 2-Stroke | Verify original engine dimensions |
| Coyote Midi Quad | Mini 2-Stroke | Physical comparison required |
This kit is intended for selected air-cooled Chinese mini 2-stroke engines. Similar-looking 47cc/49cc engines can use different cylinders, piston pins, intake systems, and ignition components.
Specifications
| Specification | Details |
|---|---|
| Product Type | Big Bore Cylinder / Engine Rebuild Kit |
| Engine Type | Air-Cooled 2-Stroke |
| Listed Original Engine Size | 47cc / 49cc |
| Cylinder Bore | Approx. 44 mm / 1.73 in |
| Marketed Big Bore Size | 53cc / 54cc |
| Carburetor Manifold Intake Diameter | Approx. 19 mm / 0.75 in |
| Air Filter Diameter | Approx. 58 mm / 2.28 in |
| Piston Pin Diameter | Approx. 12 mm / 0.47 in |
| Listed Spark Plug | A7TC |
| Color | Red |
| Application | Pocket Bike / Mini Dirt Bike / Mini ATV / Quad |
| Condition | New |
Note: 53cc/54cc is the marketed application description. Actual displacement depends on the engine's bore and stroke.
Key Features
- 44mm Big Bore Cylinder: Designed for selected 47cc/49cc Chinese-style 2-stroke mini engines.
- Complete Component Set: Combines top-end, intake, filtration, and ignition components in one replacement kit.
- 19mm Intake Reference: Carburetor/manifold dimensions provide an additional fitment check.
- 12mm Piston Pin: Important measurement for confirming piston and connecting-rod compatibility.
- Mini Powersports Application: Suitable for compatible pocket bikes, mini dirt bikes, mini ATVs, and quads.
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Passform-FAQ
Passt dieses Teil zu meinem spezifischen Modell und Baujahr?
This kit is intended for selected 47cc and 49cc air-cooled 2-stroke Chinese mini engines used in pocket bikes, mini dirt bikes, mini ATVs, quads, and similar vehicles.
These engines are often sold under many different vehicle brands and model names, so model name or engine displacement alone does not guarantee fitment.
Muss ich die OEM-Teilenummer verwenden?
No OEM part number is provided for this generic mini-engine kit.
Instead, verify the important physical specifications, especially:
44mm cylinder bore
12mm piston pin
Cylinder mounting pattern
Cylinder port layout
Crankcase opening
Carburetor/intake mounting
Approx. 19mm intake diameter
Ignition coil configuration
Physical measurements are more useful than vehicle branding for this product.
Für welche Modelle oder Situationen passt dieser Teil nicht?
Do not assume compatibility with:
Every 47cc or 49cc pocket bike
Every Chinese mini ATV or dirt bike
4-stroke engines
Liquid-cooled engines
Engines using a different cylinder mounting pattern
Engines requiring a different piston-pin diameter
Engines with incompatible intake or exhaust-port configurations
Engines where the crankcase cannot accommodate the 44mm cylinder configuration
The advertised 53cc/54cc description does not by itself confirm compatibility.
Was sollte ich vor der Bestellung überprüfen?
Confirm:
Air-cooled 2-stroke engine
Original engine configuration
44mm cylinder bore
12mm piston pin
Cylinder stud spacing and mounting pattern
Crankcase opening
Intake and exhaust-port configuration
Carburetor/manifold mounting
Approx. 19mm intake diameter
Approx. 58mm air filter size
Ignition coil connection
Spark plug specification
Original component appearance
Compare the product photos and measurements with your existing engine before purchase.