Removal; Inspection; Assembly - Yamaha SXV70ERG Supplementary Service Manual

YAMAHA POWER VALVE SYSTEM (Y.P.V.S.)

REMOVAL

1. Remove:
S Y.P.V.S. valve assembly
NOTE:
Put identification marks on each valve for refer-
ence during reinstallation.

INSPECTION

1. Eliminate:
S Carbon deposit
(from the valve)
Use the rounded scraper 1 .
CAUTION:
Do not use a sharp instrument. Avoid dam-
aging or scratching the surface.
2. Eliminate:
S Carbon deposit
(from the cylinder)
Use the rounded scraper 1 .
CAUTION:
Do not use a sharp instrument. Avoid dam-
aging or scratching the surface.

ASSEMBLY

1. Install:
S Oil seal 1
NOTE:
Install the oil seal so that there is a distance a
between its end and the end of valve housing 1
2 .
a 0 X 0.5 mm (0 X 0.02 in)
2. Install:
S Y.P.V.S. cable pulley 1
NOTE:
Install the screw 2 through the rounded side of
the shaft 3 as shown.
Screw:
7 Nm (0.7 mSkg, 5.1 ftSlb)
–101–
ENG