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SPEC

Specification Item

Thermostat Valve opening temperature Fully open temperature Fully open stroke Replacement engine oil quantity (at periodic maintenance) Without oil filter replacement With oil filter replacement

Unit

Model F300CA

°C (°F) °C (°F) mm (in)

LF300CA

50.0–54.0 (122.0–129.0) 62.0 (144.0) 4.3 (0.17)

L (US qt, Imp qt) L (US qt, Imp qt)

6.0 (6.34, 5.28) 6.3 (6.66, 5.54)

(*1) Measuring conditions: Ambient temperature 20 °C (68 °F), with spark plugs removed from all cylinders. The figures are for reference only. (*2) For the checking method, see “Checking the oil pressure” (7-1). The figures are for reference only.

Cylinder head assembly Item Valve lifter Outside diameter Valve lifter clearance Camshaft Cam lobe height Intake Exhaust Cam lobe width Intake and exhaust Journal diameter Runout Cylinder head Warpage limit Journal inside diameter Valve spring Free length Tilt limit Valve Clearance Intake Exhaust Seat contact width Intake Exhaust Margin thickness Intake Exhaust

1-19

Unit

Model F225CA

LF225CA

F250CA

LF250CA

mm (in) mm (in)

30.970–30.980 (1.2193–1.2197) 0.020–0.055 (0.0008–0.0022)

mm (in) mm (in)

46.661–46.761 (1.8370–1.8410) 46.960–47.060 (1.8488–1.8528)

mm (in) mm (in) mm (in)

35.950–36.050 (1.4154–1.4193) 24.960–24.980 (0.9827–0.9835) 0.030 (0.0012)

mm (in) mm (in)

0.10 (0.0039) 25.000–25.021 (0.9843–0.9851)

mm (in) mm (in)

48.1 (1.89) 1.7 (0.07)

mm (in) mm (in)

0.205 ± 0.035 (0.0081 ± 0.0014) 0.345 ± 0.035 (0.0136 ± 0.0014)

mm (in) mm (in)

1.100–1.400 (0.0433–0.0551) 1.400–1.700 (0.0551–0.0669)

mm (in) mm (in)

0.750–1.150 (0.0295–0.0453) 0.900–1.300 (0.0354–0.0512)

2011 YAMAHA F225CA 4-STROKE OUTBOARD Service Repair Manual SN:1000001 and up  
2011 YAMAHA F225CA 4-STROKE OUTBOARD Service Repair Manual SN:1000001 and up  
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