Rated Engine Speed; Breather Hose - Yamaha EF2800i Service Manual

COMPRESSION PRESSURE/
RATED ENGINE SPEED/BREATHER HOSE
1
SVU2230
SVU2240
SVU2250
Testing steps (above maximum level):
• Check the cylinder head, valve surfaces,
and piston crown for carbon deposits.
5. Install:
• Spark plug
Spark plug:
18 Nm (1.8 m · kg, 13 ft · lb)

RATED ENGINE SPEED

1. Connect:
• Inductive tachometer 1
Inductive tachometer:
YU-8036-A
Engine tachometer:
90890-03113
2. Inspect:
• Rated engine speed
Specified engine speed → OK
Out of specification → Refer to "TROU-
BLESHOOTING" in CHAPTER 3.
Inspection steps:
• Operate the engine (with no load).
• Turn economy switch 1 to "OFF" a.
• Measure the rated engine speed.
Rated engine speed:
3,550 r/min

BREATHER HOSE

1. Inspect:
• Breather hose 1
Cracks/damage → Replace.
Poor connection → Correct.
2-11
INSP
ADJ