Yamaha F250 / LF250 (V6 3.3 L) service guide
Oil, gear oil, spark plugs and the service schedule for the Yamaha F250 / LF250 (V6 3.3 L) (250 hp, four-stroke), from the factory service manual, plus how we service it in Hawaiʻi.
Models covered: F250TR and LF250TR four-stroke V6, 3,352 cm³, fuel injected. 2005: F250 6P2 1000001 to 1002894, LF250 6P3 1000001 to 1000956. 2006 on: F250 6P2 from 1002895, LF250 6P3 from 1000957.
Quick answers
- How much oil does a Yamaha F250 / LF250 take?
- 5.6 L (5.92 US qt, 4.93 Imp qt) without filter; 5.8 L (6.13 US qt, 5.10 Imp qt) with filter.
- What engine oil does a Yamaha F250 / LF250 use?
- 4-stroke motor oil, API SE, SF, SG, SH or SJ, SAE 10W-30 or 10W-40.
- What gear oil does a Yamaha F250 / LF250 use, and how much?
- Hypoid gear oil, API GL-4, SAE 90. Quantity: F250: 1,150 cm³ (38.9 US oz, 40.6 Imp oz); LF250: 1,000 cm³ (33.8 US oz, 35.3 Imp oz).
- What spark plug does a Yamaha F250 / LF250 use?
- NGK LFR6A-11, qty 6. Gap: 1.0 to 1.1 mm (0.039 to 0.043 in).
- How often should a Yamaha F250 / LF250 be serviced?
- The factory schedule lists: Initial 10 hours (1 month); Initial 50 hours (3 months); Every 100 hours (6 months); Every 200 hours (1 year); Every 500 hours (2.5 years); Every 1,000 hours (5 years). In Hawaiʻi's salt water we do a full yearly service every 200 hours or 1 year, whichever comes first, and a new engine needs its first (break-in) service.
- When should the water pump impeller be replaced on a Yamaha F250 / LF250?
- The factory schedule says to inspect it at 200 hours and 1,000 hours. In Hawaiʻi's warm salt water we replace it every 200 hours or 1 year, whichever comes first, because a worn impeller is the most common cause of overheating.
- What is the idle speed of a Yamaha F250 / LF250?
- 600 to 700 r/min.
- What is the propeller nut torque on a Yamaha F250 / LF250?
- 54 N·m (5.4 kgf·m, 39.8 ft·lb).
Maintenance specs
| Engine oil | 4-stroke motor oil, API SE, SF, SG, SH or SJ, SAE 10W-30 or 10W-40 |
|---|---|
| Engine oil quantity | 5.6 L (5.92 US qt, 4.93 Imp qt) without filter; 5.8 L (6.13 US qt, 5.10 Imp qt) with filter |
| Oil filter | 18 N·m (1.8 kgf·m, 13.3 ft·lb) |
| Engine oil drain bolt | M14: 27 N·m (2.7 kgf·m, 19.9 ft·lb) |
| Gear oil | Hypoid gear oil, API GL-4, SAE 90 |
| Gear oil quantity | F250: 1,150 cm³ (38.9 US oz, 40.6 Imp oz); LF250: 1,000 cm³ (33.8 US oz, 35.3 Imp oz) |
| Gear oil drain and check screws | 9 N·m (0.9 kgf·m, 6.6 ft·lb) |
| Lower unit holding pressure | 70 kPa (0.7 kgf/cm², 10 psi) |
| Spark plug | NGK LFR6A-11, qty 6 |
| Spark plug gap | 1.0 to 1.1 mm (0.039 to 0.043 in) |
| Spark plug torque | 25 N·m (18.4 ft·lb) |
| Idle speed | 600 to 700 r/min |
| Thermostat | Opens (0.05 mm) 58 to 62 °C (136 to 144 °F); fully open 70 °C (158 °F); lift over 4.3 mm |
| Anode screw | M4: 3 N·m (0.3 kgf·m, 2.2 ft·lb) |
| Propeller nut | 54 N·m (5.4 kgf·m, 39.8 ft·lb) |
| Power trim and tilt | Fluid ATF Dexron II; reservoir cap M12 7 N·m (0.7 kgf·m, 5.2 ft·lb). Trim tab bolt M10 42 N·m (4.2 kgf·m, 31.0 ft·lb) |
| Valve clearance, cold | IN 0.20 ± 0.03 mm; EX 0.34 ± 0.03 mm |
Service schedule
The factory maintenance intervals, with what is replaced and what is checked at each. Rows marked Hawaiʻi are our shop's yearly service for salt water use.
Initial 10 hours (1 month)
Replace: gear case oil, gear case plug gaskets
Check: engine oil level, spark plugs, fuel filter
Initial 50 hours (3 months)
Replace: gear case plug gaskets, propeller cotter pin
Check: fuel filter, anodes
Every 100 hours (6 months)
Replace: engine oil, oil drain plug gasket, gear case oil, gear case plug gaskets, propeller cotter pin
Check: fuel filter, anodes
Every 200 hours (1 year)
Replace: engine oil, oil filter, oil drain plug gasket, gear case oil, gear case plug gaskets, propeller cotter pin, water pump impeller
Check: spark plugs, fuel filter, thermostat, anodes
Every 500 hours (2.5 years)
Replace: engine oil, oil drain plug gasket, gear case oil, gear case plug gaskets, propeller cotter pin, water pump impeller
Check: fuel filter, anodes
Every 1,000 hours (5 years)
Replace: engine oil, oil filter, oil drain plug gasket, fuel filter, gear case oil, gear case plug gaskets, propeller cotter pin, anodes, water pump impeller
Check: spark plugs, thermostat
We replace the water pump impeller at every service from 200 hours up, which can be sooner than the factory schedule, because of Hawaiʻi’s warm salt water.
Source: Yamaha F250 / LF250 service manual, LIT-18616-02-97. Specs can change by model year and serial number, so always confirm your exact model from the serial tag on the clamp bracket.