AOKLEY LT-27, MS-27C, MS-27U
AOKLEY Carburetor User Manual
For Dolmar LT-27, MS-27C, MS-27U, and compatible Makita String Trimmers
1. Rhagymadrodd
This manual provides essential information for the installation, maintenance, and troubleshooting of your AOKLEY replacement carburetor. This carburetor is designed to replace original parts for various string trimmer models, ensuring optimal fuel-air mixture for efficient engine operation.
1.1 Product Compatibility
This AOKLEY carburetor is compatible with the following models:
- Dolmar: LT-27, MS-27C, MS-27U
- Makita String Trimmers: RBC2510, RBC2500, PTR2500, EM2500U, ER2600L, EM2600L, EM2600U
It replaces Makita Part Numbers: 168669-7, 525-60860-00, DA00000417, 671000417.
1.2 Cynnwys Pecyn
Mae'r pecyn yn cynnwys y cydrannau canlynol:
- 1 x Carbwradur
- 1 x Gasgedi
- 1 x Fuel Filter
- 1 x Spark Plug
- 2 x Primer Bulbs
- 2 x Fuel Lines
Key features of this product include its durability, precise fit, ease of installation, and long service life.
2. Gosod a Gosod
Proper installation is crucial for the optimal performance of your new carburetor. If you are unsure about any step, it is recommended to seek professional assistance.
2.1 Rhagofalon Diogelwch
- Datgysylltwch wifren y plwg sbardun bob amser cyn gwneud unrhyw waith cynnal a chadw neu osod er mwyn atal cychwyn damweiniol.
- Gweithiwch mewn ardal sydd wedi'i hawyru'n dda.
- Gwisgwch offer amddiffynnol personol priodol, fel menig ac amddiffyniad llygaid.
- Handle fuel with extreme care. Ensure no open flames or ignition sources are nearby.
- Allow the engine to cool completely before beginning work.
2.2 Camau Gosod (Canllaw Cyffredinol)
- Paratoi: Drain any remaining fuel from the fuel tank. Remove the air filter cover and air filter.
- Disconnect Old Carburetor: Carefully disconnect the fuel lines, throttle linkage, and choke linkage from the old carburetor. Note their positions for reassembly.
- Tynnwch yr Hen Garbwradur: Unbolt the old carburetor from the engine manifold. Be mindful of any gaskets.
- Gosod Gasgedi Newydd: Ensure the mounting surfaces are clean. Place the new gaskets (included) in their correct positions between the engine, carburetor, and air filter housing.
- Mowntio Carbwradur Newydd: Attach the new AOKLEY carburetor to the engine manifold, securing it with the bolts. Do not overtighten.
- Reconnect Linkages and Fuel Lines: Reconnect the throttle and choke linkages. Install the new fuel lines and primer bulbs if necessary, ensuring correct routing and secure connections. Install the new fuel filter in the fuel tank.
- Install Spark Plug: Replace the old spark plug with the new one provided.
- Cynulliad terfynol: Reinstall the air filter and air filter cover. Refill the fuel tank with the appropriate fuel mixture.

Ffigur 2.2.1: Drosoddview of the AOKLEY Carburetor kit, showing the main carburetor unit, fuel lines, primer bulbs, spark plug, fuel filter, and gaskets.
3. Egwyddorion Gweithredu
The carburetor is a vital component responsible for mixing air and fuel in the correct ratio for combustion within the engine. Once installed, the carburetor operates automatically to deliver the necessary fuel mixture based on engine demand.
For detailed operating instructions of your specific string trimmer model, please refer to the original equipment manufacturer's user manual.
4. cynnal
Regular maintenance of your carburetor and associated components will ensure long-term performance and reliability of your equipment.
4.1 Carburetor Cleaning
- Periodically inspect the carburetor for external dirt or debris. Clean with a soft brush and carburetor cleaner if necessary.
- If the engine experiences performance issues, internal cleaning of the carburetor may be required. This typically involves disassembling the carburetor and cleaning jets and passages with carburetor cleaner and compressed air. This task is best performed by experienced individuals.
4.2 Cynnal a Chadw Systemau Tanwydd
- Hidlydd Tanwydd: The included fuel filter should be replaced periodically (e.g., annually or every 50 hours of operation) to prevent contaminants from reaching the carburetor.
- Llinellau Tanwydd: Inspect fuel lines for cracks, hardening, or leaks. Replace them if any damage is observed. New fuel lines are provided in the kit.
- Primer Bulbs: If the primer bulb becomes cracked or loses its elasticity, replace it. Two new primer bulbs are included in your kit.
4.3 Cynnal a Chadw Plygiau Spark
- Inspect the spark plug (BM6A type, included) regularly for wear, carbon buildup, or damage.
- Clean the spark plug electrodes with a wire brush if necessary.
- Ensure the spark plug gap is set correctly according to your equipment's specifications.
- Replace the spark plug if it is fouled, worn, or damaged.

Figure 4.3.1: Components for fuel system and ignition maintenance, including fuel lines, primer bulbs, and spark plug.
5. Datrys Problemau
This section addresses common issues that may arise and provides basic troubleshooting steps. Always ensure safety precautions are followed before attempting any repairs.
| Problem | Achos Posibl | Ateb |
|---|---|---|
| Engine will not start or starts with difficulty. |
|
|
| Mae'r injan yn rhedeg yn arw neu'n stopio. |
|
|
| Nid oes gan yr injan bŵer. |
|
|
If problems persist after following these steps, it is advisable to consult a qualified service technician or the equipment's original manufacturer for further assistance.
6. manylebau
| Priodoledd | Manylyn |
|---|---|
| Math o Gynnyrch | Replacement Carburetor Kit |
| Brand | AOKLEY |
| Modelau Cydnaws | Dolmar LT-27, MS-27C, MS-27U; Makita RBC2510, RBC2500, PTR2500, EM2500U, ER2600L, EM2600L, EM2600U |
| Yn disodli Rhifau Rhan | 168669-7, 525-60860-00, DA00000417, 671000417 |
| Pwysau Eitem | 0.035 owns |
| Gwneuthurwr | AOKLEY |
| Gwlad Tarddiad | Tsieina |
7. Gwarant a Chefnogaeth
For any questions regarding the AOKLEY Carburetor, including installation assistance, troubleshooting beyond this guide, or warranty inquiries, please contact the manufacturer directly through your point of purchase or the official AOKLEY support channels.
Cadwch eich prawf prynu ar gyfer unrhyw hawliadau gwarant.