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EBU23940
Adjusting the carburetor
The carburetor should be checked and, if neces-
sary, adjusted at the intervals specified in the peri-
odic maintenance and lubrication chart. The
carburetor is an important part of the engine and
requires very sophisticated adjustment. Therefore,
most carburetor adjustments should be left to a
Yamaha dealer, who has the necessary profes-
sional knowledge and experience. The adjustment
described in the following section, however, may
be performed by the owner as part of routine main-
tenance.
CAUTION:
ECB00480
The carburetor has been set and extensively
tested at the Yamaha factory. Changing these
settings without sufficient technical knowl-
edge may result in poor performance of or
damage to the engine.
EBU24000
Adjusting the engine idling speed
The engine idling speed must be checked and, if
necessary, adjusted as follows at the intervals
specified in the periodic maintenance and lubrica-
tion chart.
NOTE:
A diagnostic tachometer is needed to make this
adjustment.
1. Start the engine and warm it up.
NOTE:
The engine is warm when it quickly responds to the
throttle.
2. Attach the tachometer to the spark plug lead.
3. Check the engine idling speed and, if neces-
sary, adjust it to specification by turning the
WHAT CAN HAPPEN
Could injure the eyes.
Could cause burns.
Could cause carbon monoxide poisoning,
possibly leading to death.
Could start a fire.
HOW TO AVOID THE HAZARD
When cleaning the spark arrester:
Always let the exhaust system cool prior to
touching exhaust components.
Do not start the engine when cleaning the ex-
haust system.
Summary of Contents for RAPTOR YFM80RW
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Page 9: ... 8 36 9 1 9 1 9 2 10 1 11 1 11 1 11 3 11 4 11 5 11 7 ...
Page 14: ...1 5 ed ar may h with th ad ...
Page 15: ...2 1 1 2 3 4 5 6 7 8 9 10 11 RNING AND SPECIFICATION LABELS ...
Page 18: ...3 1 DESCRIPTION EBU17700 Right view 1 Spark arrester 2 Seat 3 Brake pedal 4 Footrest 2 1 4 3 ...
Page 19: ...3 2 1 2 3 4 5 6 7 8 9 10 11 slightly from the figures shown in this manual 4 ...
Page 20: ...4 1 AND CONTROL FUNCTIONS esult in ows er and t be re be re 1 Main switch OFF ON 1 ...
Page 32: ...4 13 esult in ...
Page 39: ...5 7 1 2 3 4 5 6 7 8 9 10 11 re prop ches are distilled ...
Page 48: ...6 9 esult in ...
Page 49: ...7 1 1 2 3 4 5 6 7 8 9 10 11 DING YOUR ATV ...
Page 57: ...7 9 1 2 3 4 5 6 7 8 9 10 11 uring op he rear ity for nd se or pull r brak r Own lling a ...
Page 119: ...10 4 1 2 3 4 5 6 7 8 9 10 11 ...
Page 121: ...11 2 1 2 3 4 5 6 7 8 9 10 11 o identi n the il label in e need ha deal 1 Model label 1 ...
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