1. Kupu Whakataki
This manual provides essential information for the safe operation, maintenance, and troubleshooting of your Lifan LF190F-BDQ 15 HP 420cc 4-Stroke OHV Industrial Grade Gas Engine. This industrial-grade engine is designed for dependable performance across various applications, including pressure washers, air compressors, trenchers, concrete mixers, concrete saws, mortar mixers, and go-karts. It features an electric start for convenience and a universal mounting pattern for broad compatibility. Please read this manual thoroughly before operating the engine.
2. Nga korero haumaru
Always prioritize safety when operating or maintaining the engine. Failure to follow safety instructions can result in serious injury or property damage.
- Pānuihia te pukapuka: Kia mohio ki nga tohutohu me nga whakatupato katoa i mua i te whakamahi.
- Whakahau: Operate the engine in a well-ventilated area to prevent carbon monoxide poisoning. Never operate indoors.
- Haumaru wahie: Gasoline is highly flammable. Store fuel in approved containers, away from ignition sources. Refuel in a well-ventilated area with the engine off and cool. Do not overfill.
- Mata wera: The engine and exhaust system become very hot during operation and remain hot for a period afterward. Avoid contact to prevent burns.
- Nga Waahanga Nuku: Puritia ō ringaringa, ō waewae, me ō kākahu kia matara atu i ngā wāhanga e nekeneke ana hei ārai i te raranga.
- Engine Protection: This engine includes a low oil shutdown feature to prevent damage. Do not bypass this safety mechanism.
- Haumaru Hiko: For electric start models, ensure battery connections are secure and correct polarity is observed.
3. Hua Neke Atuview
The Lifan LF190F-BDQ engine is an Overhead Valve (OHV) design, providing efficient and quiet operation. Key features include a 1-inch keyway shaft, compression release for easy starting, and low oil shutdown protection.

Figure 3.1: Lifan LF190F-BDQ 15 HP 420cc Gas Engine. This image displays the overall view of the industrial-grade gas engine, highlighting its robust construction and key components such as the air filter, fuel tank, and electric start mechanism.
4. Tatūnga
4.1 Tirotiro Tuatahi
Upon unpacking, inspect the engine for any signs of shipping damage. Ensure all components are present and secure. Refer to the packing list for included items.
4.2 Te taapiri hinu miihini
The engine is shipped without oil. Fill the crankcase with the recommended oil type and to the correct level before first use. Refer to the oil fill cap or dipstick for capacity and level indicators. Typically, 10W-30 or 10W-40 motor oil is recommended for general use.
- Whakanohoia te miihini ki runga i te mata taumata.
- Tangohia te potae whakakii hinu.
- Slowly add the recommended engine oil until it reaches the upper mark on the dipstick or the lower edge of the oil fill opening. Do not overfill.
- Whakakapia kia mau te potae whakakī hinu.
4.3 Te taapiri wahie
Use fresh, unleaded gasoline with an octane rating of 87 or higher. Do not use E85 or gasoline containing more than 10% ethanol.
- Me mohio kua weto te miihini me te whakamatao.
- Whakatuwheratia te potae tank wahie.
- Carefully pour gasoline into the fuel tank, filling to approximately 1 inch below the top of the tank to allow for expansion.
- Whakahokia te taupoki o te tāke wahie kia mau. Horoia tonutia te wahie i maringi.
4.4 Battery Connection (Electric Start)
Connect a suitable 12V battery (not included) to the engine's electric start system. Ensure correct polarity.
- Connect the positive (+) battery cable to the positive (+) terminal on the engine.
- Connect the negative (-) battery cable to the negative (-) terminal on the engine.
- Me whakarite kia piri, kia mau hoki nga hononga katoa.
4.5 Whakapiki
The engine features a universal mounting pattern. Secure the engine to a stable, level surface using appropriate hardware. Ensure adequate clearance for operation and maintenance.
5. Mahi
5.1 Rarangi Arowhai i mua i te tiimata
- Tirohia te taumata hinu miihini.
- Tirohia te taumata wahie.
- Me whakarite kia ma te tātari hau, ā, kia tika hoki te tāutanga.
- Verify all connections (fuel lines, electrical) are secure.
- Ensure the engine is on a level surface.
5.2 Starting the Engine (Electric Start)
- Open the fuel valve (if equipped).
- Nekehia te rīwhi kōkō ki te tūranga 'CHOKE' (mēnā he makariri te mīhini).
- Whakaturia te rīpene whakatere ki te tūranga 'FAST'.
- Turn the ignition key to the 'START' position and hold until the engine starts. Do not crank for more than 5 seconds at a time. Allow a 10-second cool-down period between attempts.
- Once the engine starts, slowly move the choke lever to the 'RUN' position as the engine warms up.
5.3 Whakamutua te Mihini
- Nekehia te rīpene whakatere ki te tūranga 'PURO' ki te tūranga 'ITIRITI' rānei.
- Tahurihia te kī whakakā ki te tūranga 'OFF'.
- Close the fuel valve (if equipped) to prevent fuel leakage and carburetor issues during storage.
5.4 Mana Tohu
The throttle lever controls engine speed. Adjust it to the desired RPM for your application. For maximum power, set the throttle to the 'FAST' position.
6. Tiaki
Regular maintenance is crucial for optimal performance and longevity of your engine. Always perform maintenance with the engine off and cool.
6.1 Huri Hinu Mihini
Change the engine oil after the first 20 hours of operation, then every 50-100 hours or annually, whichever comes first.
- Whakahaerehia te miihini mō ētahi meneti hei whakamahana i te hinu, kātahi ka whakaweto.
- Whakanohoia he paraharaha ki raro i te parai hinu.
- Remove the oil fill cap/dipstick and the oil drain plug. Allow oil to drain completely.
- Tāutatia anōtia te mono whakaweti hinu, kia mau.
- Refill with recommended oil (refer to Section 4.2).
- Whakakapia kia mau te potae whakakī hinu.
6.2 Tiaki Taatari Air
Tirohia te tātari hau i ia 25 hāora, neke atu rānei i ngā wā katoa i roto i ngā āhuatanga puehu. Horoia, whakakapia rānei mēnā e tika ana.
- Tangohia te uhi tātari rangi me te huānga.
- Clean the foam element with warm, soapy water, rinse thoroughly, and allow to air dry completely. Lightly oil the foam element with engine oil and squeeze out excess.
- Replace paper elements if dirty or damaged.
- Tāuta anōtia te huānga tātari hau me te taupoki.
6.3 Tirohanga Paraka
Tirohia te mono mura i ia 100 hāora, i ia tau rānei.
- Remove the spark plug cap and then the spark plug.
- Check for fouling, discoloration, or wear. Clean or replace if necessary.
- Ensure the spark plug gap is set to the manufacturer's specification (typically 0.7-0.8 mm or 0.028-0.031 inches).
- Tāutahia anō te paraka me te pōtae.
6.4 Tiaki Pūnaha Whara
Regularly check fuel lines for cracks or leaks. Clean the fuel filter (if equipped) as needed.
6.5 Rokiroki
For extended storage (over 30 days), prepare the engine to prevent fuel degradation and corrosion.
- Ringihia te wai o te tāke wahie me te carburetor, tāpirihia rānei he mea whakau wahie.
- Hurihia te hinu miihini.
- Remove the spark plug and pour a small amount of engine oil into the cylinder. Rotate the crankshaft a few times to distribute the oil, then reinstall the spark plug.
- Clean the engine exterior.
- Penapena ki tētahi wāhi ma, maroke, e pai ana te hauhautanga.
7. Te Raru
This section provides solutions for common engine problems. For issues not listed, contact customer support.
| Raruraru | Take pea | Rongoā |
|---|---|---|
| E kore e timata te miihini | No fuel; Stale fuel; Incorrect choke position; Low oil level; Faulty spark plug; Dead battery (electric start) | Add fresh fuel; Adjust choke; Check/add oil; Clean/replace spark plug; Charge/replace battery |
| He kino te rere o te miihini | Dirty air filter; Stale fuel; Incorrect throttle setting; Fouled spark plug | Clean/replace air filter; Replace fuel; Adjust throttle; Clean/replace spark plug |
| He iti te mana o te miihini | Dirty air filter; Incorrect throttle setting; Overloaded; Low oil level | Clean/replace air filter; Adjust throttle; Reduce load; Check/add oil |
| Te paowa nui | Overfilled oil; Incorrect oil type; Worn engine components | Drain excess oil; Use correct oil; Consult service center |
8. Whakatakotoranga
| Āhuahira | Whakatakotoranga |
|---|---|
| Tau tauira | LF190FBDQ |
| Momo Mihini | 4-Stroke, OHV, Industrial Grade Gas Engine |
| Whakahekenga | 420cc |
| Horsepower | 15 HP |
| Pūnaha Tīmata | Tīmata Hiko |
| Momo Shaft | 1-inch Keyway Shaft |
| Hunga Hua | 21 x 20 x 22 inihi |
| Taumaha Tūemi | 79.7 pauna |
| Kaihanga | Lifan Power USA |
9. Pūtāhui me te Tautoko
For warranty information or technical support, please contact Lifan Power USA directly. Keep your purchase receipt and engine model/serial number readily available when contacting support.
Manufacturer: Lifan Power USA





