Yamaha WaveRunner FX SHO Service Manual

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• If the valve seat contact width is too narrow
and situated near the bottom edge of the
valve face, use a 60° cutter to cut the bottom
edge of the valve seat, and then use a 45°
cutter to center the area and set its width.
b Previous contact width
60˚
b
6. After refacing the valve seat to the speci-
fied contact width, apply a thin, even layer
of lapping compound onto the valve seat,
and then lap the valve using a valve lapper
(commercially available).
CAUTION:
Do not get the lapping compound on the
valve stem and valve guide.
7. After every lapping procedure, be sure to
clean off any remaining lapping compound
from the cylinder head and the valves.
8. Check the valve seat contact area of the
valve again.
Refer to “Valve seat check.”
NOTE:
After refacing the valve seat, check that the
valve clearance is within specification. Refer to
“Valve clearance measurement” in Chapter 3.
Cylinder head

Yamaha WaveRunner FX SHO Specifications

General

Manufacturer	Yamaha
Model	WaveRunner FX SHO
Category	Personal Watercraft
Engine Type	4-cylinder, 4-stroke, Supercharged
Displacement	1812cc
Bore x Stroke	86mm x 78mm
Fuel Delivery	Electronic Fuel Injection
Horsepower	210 HP
Starter System	Electric
Lubrication System	Wet sump
Length	132.7 in (3.37 m)
Fuel Capacity	18.5 gal (70 L)
Oil Capacity	5.3 qt (5.0 L)
Rider Capacity	3 persons
Cooling System	Water-cooled
Width	1.23 m
Dry Weight	377 kg