Yamaha V4 two-stroke 100 / 115 / 130 / 140 (6E5) service guide
Oil, gear oil, spark plugs and the service schedule for the Yamaha V4 two-stroke 100 / 115 / 130 / 140 (6E5) (100 to 140 hp, two-stroke), from the factory service manual, plus how we service it in Hawaiʻi.
Models covered: V4 two-strokes, 4 cylinders, 1,730 cm³ (105.6 cu in), 90.0 x 68.0 mm, 2 carburetors. USA models: 115TR code 6E5 from L 1005727 / X 1005727; 130TR code 6L1 from L 1001179 / X 1001179. Worldwide models: 100AETO (Canada 100TR) 64W from L 301207; E115AMH, E115AWH, E115AE, E115AET, 115BE, 115BET (C115TR), 115BETO, 115CETO (115TR, S115TR) all 6E5; B115TR 66Y from L 000301; 130BETO (130TR, S130TR) 6L1 from L 310563 / X 705725; L130BETO (L130TR, counter rotation) 6L6 from X 701971; 140BET 6F3 from L 522075 / X 421113. Oil injected: 100AETO, 115BETO, 115CETO, B115TR, 130BETO, L130BETO. Pre-mixed: E115A models, 115BE, 115BET (C115TR), 140BET.
Quick answers
- What two-stroke oil does a Yamaha V4 two-stroke 100 / 115 / 130 / 140 use?
- 2-stroke outboard motor oil, grade TC-W3. Oil injected models: engine oil tank 0.9 L (0.95 US qt, 0.79 Imp qt), sub-oil tank 10.5 L (11.1 US qt, 9.2 Imp qt).
- What is the fuel to oil ratio for a Yamaha V4 two-stroke 100 / 115 / 130 / 140?
- Oil injected models: fill the fuel tank with 50:1 fuel/oil mixture only for air bleeding the oil injection system and for the oil pump discharge test.
- What gear oil does a Yamaha V4 two-stroke 100 / 115 / 130 / 140 use, and how much?
- GEAR CASE LUBE (USA) or hypoid gear oil, SAE 90. Quantity: USA models (115TR, 130TR): regular rotation 785 cm³ (26.5 US oz, 27.7 Imp oz); counter rotation 715 cm³ (24.2 US oz, 25.2 Imp oz). Fill through the drain hole until oil flows from the check hole with no bubbles.
- What spark plug does a Yamaha V4 two-stroke 100 / 115 / 130 / 140 use?
- USA models: 115TR BR8HS-10, 130TR BR9HS-10 (NGK), qty 4. Worldwide models: 100A, E115A, 115BE, 115BET, 115BETO B8HS-10; 115CETO B8HS-10 (Oceania) or BR8HS-10; B115TR BR8HS-10; 130BETO, L130BETO B9HS-10 (Oceania) or BR9HS-10; 140BET B9HS-10. Gap: 0.9 to 1.0 mm (0.035 to 0.039 in).
- How often should a Yamaha V4 two-stroke 100 / 115 / 130 / 140 be serviced?
- The factory schedule lists: Initial 10 hours (Break-in); Initial 50 hours (3 months); Every 100 hours (6 months); Every 200 hours (1 year). 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 V4 two-stroke 100 / 115 / 130 / 140?
- The factory schedule gives no replacement interval. 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 V4 two-stroke 100 / 115 / 130 / 140?
- 750 ± 50 r/min; trolling speed 650 ± 50 r/min.
- What is the propeller nut torque on a Yamaha V4 two-stroke 100 / 115 / 130 / 140?
- 55 N·m (5.5 m·kg, 40 ft·lb).
Maintenance specs
| Engine oil | 2-stroke outboard motor oil, grade TC-W3. Oil injected models: engine oil tank 0.9 L (0.95 US qt, 0.79 Imp qt), sub-oil tank 10.5 L (11.1 US qt, 9.2 Imp qt) |
|---|---|
| Fuel to oil ratio | Oil injected models: fill the fuel tank with 50:1 fuel/oil mixture only for air bleeding the oil injection system and for the oil pump discharge test. |
| Gear oil | GEAR CASE LUBE (USA) or hypoid gear oil, SAE 90 |
| Gear oil quantity | USA models (115TR, 130TR): regular rotation 785 cm³ (26.5 US oz, 27.7 Imp oz); counter rotation 715 cm³ (24.2 US oz, 25.2 Imp oz). Fill through the drain hole until oil flows from the check hole with no bubbles |
| Gear oil drain and check screws | Gear oil drain screw 7 N·m (0.7 m·kg, 5.1 ft·lb); gear oil level check screw 7 N·m (0.7 m·kg, 5.1 ft·lb). Install the check screw first, then quickly the drain screw |
| Lower unit holding pressure | USA models: 70 kPa (0.7 kg/cm², 10.2 psi). Worldwide models: 100 kPa (1.0 kg/cm², 14.2 psi). At the check hole with pressure tester YB-35956 / 90890-06762, must hold 10 seconds; do not over pressurize |
| Spark plug | USA models: 115TR BR8HS-10, 130TR BR9HS-10 (NGK), qty 4. Worldwide models: 100A, E115A, 115BE, 115BET, 115BETO B8HS-10; 115CETO B8HS-10 (Oceania) or BR8HS-10; B115TR BR8HS-10; 130BETO, L130BETO B9HS-10 (Oceania) or BR9HS-10; 140BET B9HS-10 |
| Spark plug gap | 0.9 to 1.0 mm (0.035 to 0.039 in) |
| Spark plug torque (M14) | 25 N·m (2.5 m·kg, 18 ft·lb) |
| Idle speed | 750 ± 50 r/min; trolling speed 650 ± 50 r/min |
| Thermostat | Opens at 48 to 52 °C (118 to 126 °F); fully open at 60 °C (140 °F); valve open lower limit 3 mm (0.12 in) |
| Anodes | Inspect the anodes and the trim tab; clean off scale, grease or oil, replace when worn. Do not oil, grease or paint them |
| Propeller nut (M18) | 55 N·m (5.5 m·kg, 40 ft·lb) |
| Power trim and tilt fluid | ATF Dexron II; reservoir cap 8 N·m (0.8 m·kg, 5.8 ft·lb). Tilt fully up and lock the tilt stop levers before opening the cap; the level should be just below the check hole |
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 (Break-in)
Replace: gear case oil, gear case plug gaskets, propeller cotter pin
Check: spark plugs, fuel filter
Initial 50 hours (3 months)
Replace: gear case plug gaskets, propeller cotter pin
Check: spark plugs, fuel filter, anodes
Every 100 hours (6 months)
Replace: gear case oil, gear case plug gaskets, propeller cotter pin
Check: spark plugs, fuel filter, anodes
Every 200 hours (1 year)
Replace: gear case oil, gear case plug gaskets, propeller cotter pin, water pump impeller
Check: spark plugs, fuel filter, anodes
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 115C, 130C service manual. Specs can change by model year and serial number, so always confirm your exact model from the serial tag on the clamp bracket.