Sas Filters Inspection And Cleaning - PIAGGIO MSS X9 EVOLUTION 250 Workshop Manual

MSS X9 Evolution 250
ALSO CHECK THE CARBURETION ADJUSTMENT IS OB-
TAINED WITH THE FLOW SCREW OPEN BETWEEN 2 AND
4 TURNS.
N.B.
CHECK THAT THE RESULT IS OBTAINED WITH THE
VALVE GAS IN CLOSED POSITION.
N.B.
CHECK THE CONDITIONS DISPLAYED BY THE ANALY-
SER AND THE ENGINE RPM AND ADJUST THE CO VALUE
AT 3.8 ± 0.7 AT 1,650 ± 50 RPM.
Specific tooling
020332Y Digital rev counter
494929Y Exhaust fumes analyser
020329Y MityVac vacuum-operated pump

SAS filters inspection and cleaning

Undo the 2 fixing screws of the secondary air filter
cover indicated in the figure, remove the cover and
then take out the filtering element.
- Wash with water and mild soap.
-Dry with a clean cloth and short blasts of com-
pressed air.
Remove the flywheel cover by operating on its
clamps and remove the primary filtering element.
- Wash with water and neutral soap.
-Dry with a clean cloth and short blasts of com-
pressed air.
Check that the filter housing is cleaned.
CAUTION
NEVER RUN THE ENGINE WITHOUT THE SECONDARY
AIR FILTER
CAUTION
WHEN TRAVELLING ON DUSTY ROADS, THE AIR FILTER
MUST BE CLEANED MORE OFTEN THAN SHOWN IN THE
SCHEDULED MAINTENANCE CHART.
Maintenance
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