1. 서론
This manual provides comprehensive instructions for the installation, operation, and maintenance of your YOXUFA 2-Stroke Carburetor Assembly. This carburetor is designed to optimize fuel-air mixture for various 2-stroke engines, enhancing performance and efficiency. Please read this manual thoroughly before installation and use to ensure proper function and longevity of the product.
2. 패키지 내용
아래 나열된 모든 구성품이 패키지에 포함되어 있는지 확인하세요.
- 1 x 2-Stroke Carburetor
- 1 x 에어 필터
- 1 x 점화 플러그
- 2 x Fuel Filters
- 연료 라인 1개
- 4 x 클립

Image 1: YOXUFA 2-Stroke Carburetor Assembly with air filter. This image displays the main carburetor unit with the air filter attached, providing a complete view 주요 구성 요소의
3. 사양
| 상표 | YOXUFA |
| 모델 번호 | YO-HYQ80cc-H |
| 품목 유형 | 기화기 어셈블리 |
| 외부 마감 | 우아한 |
| 제조업체 보증 | 90일 |

Image 2: Detailed dimensions of the carburetor and air filter. This image provides critical measurements for the carburetor (117mm height, 19mm inlet, 56mm throttle bore) and the air filter (58mm diameter, 42mm height), essential for fitment verification.
4. 호환성
This carburetor assembly is compatible with a range of 2-stroke engines:
- 49cc 2-stroke engines
- 50cc 2-stroke engines
- 66cc 2-stroke engines
- 80cc 2-stroke engines
- 100cc 2-stroke engines
It is suitable for motorized bicycles, moto bikes, motorcycles, bicycles, Chinese scooters, mopeds, and pit dirt bike parts that utilize these engine sizes.
5. 특징
- 내구성 있는 구조: Made from high-strength materials for extended service life.
- 향상된 공기 흐름: The included air filter features a 58mm large inlet diameter, designed to absorb more clean air into the carburetor, potentially improving engine power.
- Cotton Gauze Air Filter: The air filter is constructed with cotton gauze, which helps prevent dust from sticking and maintains efficient filtration.
- Easy Jet Tuning: The design allows for straightforward jet tuning by opening the float bowl and replacing jets.

이미지 3: 클로즈업 view of the 58mm air filter. This image highlights the cotton gauze construction and indicates how the larger inlet diameter facilitates increased airflow into the engine, contributing to improved performance.
6. 설정 및 설치
Proper installation is crucial for optimal performance and safety. If you are unsure about any steps, it is recommended to seek professional assistance.
6.1 설치 전 확인 사항
- Ensure the engine is cool and the fuel supply is turned off.
- 필요한 도구를 모두 모으세요.
- 설치하기 전에 모든 구성품에 손상이 있는지 검사하십시오.
6.2 설치 단계
- 기존 기화기를 제거하세요: Carefully disconnect the fuel line, throttle cable, and mounting bolts from the existing carburetor. Remove the old carburetor and air filter.
- 장착 표면 준비: Clean the engine's intake manifold surface to ensure a proper seal.
- 새로운 기화기 설치: Mount the YOXUFA carburetor to the engine. If replacing an NT carb on a 66/80cc bicycle engine, it may be necessary to wrap several layers of thread tape around the intake manifold connection to ensure a secure fit and prevent air leaks.
- Attach Air Filter: Securely attach the provided air filter to the carburetor intake.
- 연료 라인 연결: Attach the new fuel line and fuel filters, ensuring a tight connection to prevent leaks. Use the provided clips.
- 스로틀 케이블을 연결하세요: Connect and adjust the throttle cable according to your engine's specifications.
- 점화 플러그를 설치하세요: Replace the old spark plug with the new one provided.

Image 4: Carburetor and air filter shown separately. This image illustrates the carburetor and its accompanying air filter as individual components, aiding in understanding how they connect during installation.
7. 사용 설명서
After installation, perform the following steps to operate your engine:
- 연료 공급: Ensure the fuel tank has adequate fuel and the fuel valve is open.
- Choke Operation: For cold starts, engage the choke. Once the engine starts and warms up, gradually disengage the choke.
- 스로틀 제어: Use the throttle to control engine speed. Ensure smooth operation and no sticking.
- 공회전 조정: Adjust the idle screw on the carburetor to achieve a stable idle speed when the engine is warm.
8. 유지관리
정기적인 유지보수는 기화기의 수명과 최적의 성능을 보장합니다.
- 공기 필터 청소: Periodically inspect and clean the air filter. The cotton gauze design helps prevent dust buildup, but regular cleaning is still recommended.
- 연료 필터 교체: Replace fuel filters regularly to prevent contaminants from reaching the carburetor.
- 기화기 청소: If performance issues arise, the carburetor may need cleaning. Disassemble carefully, clean with carburetor cleaner, and reassemble.
- Jet Inspection: Check jets for blockages or wear, especially if experiencing fuel delivery issues.
9. 문제 해결
다음은 몇 가지 일반적인 문제와 이에 대한 잠재적 해결책입니다.
| 문제 | 가능한 원인 | 해결책 |
| Engine not starting or running poorly | Incorrect jet tuning, clogged fuel filter, air leak, spark plug issue | Adjust jets (see below), replace fuel filter, check for air leaks at manifold, inspect/replace spark plug. |
| Engine stalls at idle | Idle screw misadjusted, clogged idle jet | Adjust idle screw, clean idle jet. |
| Loss of power or rough running | Main jet too small/large, air filter clogged | Adjust main jet size, clean air filter. |
9.1 Jet Tuning Considerations
Jet tuning is dependent on environmental factors such as weather and altitude. It is a straightforward process: open the float bowl, unscrew the current jet, and install a new one. Ensure not to overtighten. For higher elevations, a change in jet size (typically a 6mm jet) may be required for proper carburetor function.
10. 공식 제품 영상
Video 1: YOXUFA 2-Stroke Carburetor Overview. This video provides a visual demonstration and overview of the YOXUFA 2-Stroke Carburetor Assembly, showcasin그 특징과 구성 요소를 살펴보겠습니다.
11. 보증 및 지원
The YOXUFA 2-Stroke Carburetor Assembly comes with a 90-day manufacturer warranty. For warranty claims, technical support, or further inquiries, please contact YOXUFA customer service or visit the official YOXUFA store: