Polaris Sportsman 90 - Manual (Page 171)

135
MAINTENANCE
Exhaust System Restrictor
The exhaust restrictor system restricts
exhaust gas flow, reducing the maximum
power output of the engine.
Exhaust System Restrictor Removal
The Scrambler 50 utilizes a restrictor at
the headpipe exhaust flange and at the
spark arrestor.
Make certain the engine and exhaust
system is cool to avoid burns.
Loosen the set screw (A) of the exhaust
restrictor on the spark arrestor and remove the exhaust restrictor.
Remove the nuts at the headpipe exhaust flange, the center mount bracket bolts,
and the spark arrestor fasteners.
A