Yamaha Badger Raptor 80 Manual

							– 15 –
CHK
ADJ

Air intake restrictor plate removal
Refer to “AIR FILTER CLEANING”.
NOTE:
To obtain full engine performance capability,
removing the air intake restrictor plate 1 is
required. Since removal of this plate will result
in a significant increase in power, turn the
speed limiter completely back in again.
1
AIR FILTER CLEANING
NOTE:
There is check hose 1 at the bottom of the air
filter case. If dust and/or water collects in this
hose, clean the air filter element and air filter
case.
1.Remove:

Front panel
Refer to “SEAT, FENDERS AND FUEL
TANK”.
1
2.Remove:

Air filter cover 1 
3.Remove:

Rubber band 2 
4.Pull out the air filter element assembly.
5.Remove:

Guide

Air filter element 3 

Air intake restrictor plate 4 
CAUTION:
The engine should never be run without the
air filter element; excessive piston and/or
cylinder wear may result.
1
34
2
SPEED LIMITER ADJUSTMENT/
AIR FILTER CLEANING 
						

							– 16 –
CHK
ADJ
AIR FILTER CLEANING
6.Check:

Air filter element
Damage → Replace.
7.Clean:

Air filter element
***********************************************
Cleaning steps:

Wash the element gently, but thoroughly in
solvent.
WARNING
Never use low flash point solvents such as
gasoline to clean the air filter element.
Such solvent may lead to a fire or explo-
sion.

Squeeze the excess solvent out of the ele-
ment and let dry.
CAUTION:
Do not twist the filter element when
squeezing the filter element.

Apply the engine oil.

Squeeze out the excess oil.
NOTE:
The element should be wet but not dripping.
***********************************************
8.Install:

Air filter element
NOTE:
Make sure its sealing surface matches the
sealing surface of the case so there is no air
leak. 
						

							– 17 –
CHK
ADJ
SPARK ARRESTER CLEANING
SPARK ARRESTER CLEANING
1.Clean:

Spark arrester
***********************************************
Cleaning steps:
WARNING

Select a well-ventilated area free of com-
bustible materials.

Always let the exhaust system cool
before performing this operation.

Do not start the engine when removing
the tailpipe from muffler.

Remove the screws 1.

Remove the tailpipe 2 by pulling it out of the
muffler.

Tap the tailpipe lightly with a soft-face ham-
mer or suitable tool, then use a wire brush to
remove any carbon deposits from the spark
arrester portion of the tailpipe and the inner
contact surfaces of the muffler.

Insert the tailpipe into the muffler and align
the bolt holes.

Insert the bolt and tighten it.

Remove the purging bolt 3.

Start the engine and rev it up approximately
twenty times while momentarily creating
exhaust system back pressure by blocking
the end of the muffler with a shop towel.

Stop the engine and allow the exhaust pipe
to cool.

Install the purging bolt 3 and tighten it.
***********************************************
2
1
2
3 
						

							YAMAHA MOTOR CO., LTD.
2500 SHINGAI IWATA SHIZUOKA JAPAN
PRINTED IN U.S.A.