Yamaha E60H Enduro 60 two-stroke (69D) service guide
Oil, gear oil, spark plugs and the service schedule for the Yamaha E60H Enduro 60 two-stroke (69D) (60 hp, two-stroke), from the factory service manual, plus how we service it in Hawaiʻi.
Models covered: E60H Enduro 60 hp two-stroke: 3 cylinder, 849 cm³ (51.8 cu in), 72.0 x 69.5 mm, three carburetors, choke valve, premix at 50:1, manual tilt. Model code 6K5 for all: E60HMHDS from serial 600101; E60HMHD (USA, Canada E60MH) from 700101; E60HWHD (USA, Canada E60EH) from 800101; E60HWD from 900101. E60HMHD is manual start
Quick answers
- What two-stroke oil does a Yamaha E60H Enduro 60 two-stroke use?
- 2-stroke outboard engine oil, grade TC-W3.
- What is the fuel to oil ratio for a Yamaha E60H Enduro 60 two-stroke?
- 50:1 (lubrication system: mixed).
- What gear oil does a Yamaha E60H Enduro 60 two-stroke use, and how much?
- GEAR CASE LUBE (USA) or hypoid gear oil, SAE #90. Quantity: 610 cm³ (20.6 US oz, 21.5 Imp oz); fill through the drain hole until oil flows out of the check hole with no air bubbles.
- What spark plug does a Yamaha E60H Enduro 60 two-stroke use?
- NGK B8HS-10, qty 3. Gap: 0.9 to 1.0 mm (0.035 to 0.039 in).
- How often should a Yamaha E60H Enduro 60 two-stroke 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 E60H Enduro 60 two-stroke?
- 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 E60H Enduro 60 two-stroke?
- 1,000 ± 50 r/min.
- What is the propeller nut torque on a Yamaha E60H Enduro 60 two-stroke?
- 35 N·m (3.5 kgf·m, 25 ft·lb); new cotter pin.
Maintenance specs
| Two-stroke engine oil | 2-stroke outboard engine oil, grade TC-W3 |
|---|---|
| Fuel to oil ratio | 50:1 (lubrication system: mixed). |
| Gear oil | GEAR CASE LUBE (USA) or hypoid gear oil, SAE #90 |
| Gear oil quantity | 610 cm³ (20.6 US oz, 21.5 Imp oz); fill through the drain hole until oil flows out of the check hole with no air bubbles |
| Gear oil drain screw and level check screw | Gear oil level check plug (M8) 7 N·m (0.7 kgf·m, 5.1 ft·lb); gear oil drain plug (M8) 7 N·m (0.7 kgf·m, 5.1 ft·lb). Install the level check screw first, then quickly the drain screw |
| Lower unit holding pressure | 100 kPa (1.0 kg/cm², 14.2 psi) at the level check hole, must hold 10 seconds; do not overpressurize, it can damage the oil seals |
| Spark plug | NGK B8HS-10, qty 3 |
| Spark plug gap | 0.9 to 1.0 mm (0.035 to 0.039 in) |
| Spark plug torque (M14) | 25 N·m (2.5 kgf·m, 18 ft·lb) |
| Idle speed | 1,000 ± 50 r/min |
| Thermostat | Opens at 48 to 52 °C (118 to 126 °F); fully open at 60 °C (140 °F); valve lift 3 mm (0.12 in) |
| Anodes | Check the anodes and the trim tab: clean scale, oil or grease; replace if excessively worn. Do not oil, grease or paint. |
| Propeller nut (M16) | 35 N·m (3.5 kgf·m, 25 ft·lb); new cotter pin |
| Power trim and tilt | Not listed for these models: manual tilt (tilt angles 8, 12, 16, 20, 24 degrees). |
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
Check: spark plugs, fuel filter
Initial 50 hours (3 months)
Replace: gear case plug gaskets, propeller cotter pin
Check: spark plugs, fuel filter
Every 100 hours (6 months)
Replace: gear case oil, gear case plug gaskets, propeller cotter pin
Check: spark plugs, fuel filter
Every 200 hours (1 year)
Replace: gear case oil, gear case plug gaskets, propeller cotter pin, water pump impeller
Check: spark plugs, fuel filter
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 E60HMHD, E60HWHD, E60HWD 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.