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5-17
POWR
E
YPVS
SERVICE POINTS
YPVS valve inspection
1. Eliminate:
● Carbon deposits
(with a rounded scraper 1)
CAUTION:
Do not use a sharp instrument to avoid
damaging or scratching the surfaces.
2. Inspect:
● YPVS valve assembly
Crack/damage/wear → Replace.
YPVS valve installation
1. Install:
● Oil seal
Distance a:
1.0–1.5 mm (0.04–0.06 in)
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