SPARK ARRESTER
The WR models are equipped with a U.S. Forest Service approved
spark arrester for maximum efficienty and performance.
" SPARK ARRESTER" MAINTENANCE AND
CLEANOUT INSTRUCTIONS
Proceed as follows:
A: First turn counterclockwise fastening rear pin (A) then remove
saddle, screws (1) and R.H. side panel (2).
B: Remove the two screws (3) fastening the muffler to the rear
frame. Extract the silencer from the union manifold to the ex-
haust pipe.
A
MUM2_WR250-300_2012_GB.indd 59
Note*: If silencer or exhaust are difficult to
remove, help to slide them apart by tapping
gently with a rubber or plastic hammer.
C: remove the four screws (4) and the endcap (5) from si-
lencer's body;
D: examinate SPARK ARRESTER conditions and remove, if neces-
sary, carbon particles from the SPARK ARRESTER screen;
E: if necessary, inflate air on the SPARK ARRESTER screen, in the
opposite direction in respect of the exhausted gas flow;
F: assemble the front endcap on the silencer's body, mounting
the screws in the correct position, providing a tight connection
between endcap and silencer's body, using, if necessary, a sili-
cone paste;
G: re-assemble the silencer on motorbike.
Due to the SPARK ARRESTER position on the silencer, if you
need only to check the SPARK ARRESTER conditions you can:
A: disassemble the silencer from motorbike;
B: check SPARK ARRESTER conditions simply looking into the
silencer from front endcap opening;
C: if the check is positive, you can proceed in re-assembling the
silencer on the motorbike;
D: if the check is negative, proceed with the maintenance and
cleanout procedure.
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10-05-2011 9:54:43