Checking The Crankcase Breather Hose; Adjusting The Engine Idling Speed - Yamaha 2011 FZ8NA(C) Service Manual

h. Measure the valve clearance again.
i. If the valve clearance is still out of specifi-
cation, repeat all of the valve clearance
adjustment steps until the specified clear-
ance is obtained.
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7. Install:
• All removed parts
TIP
For installation, reverse the removal proce-
dure.
EAS21070
CHECKING THE CRANKCASE BREATHER
HOSE
1. Remove:
• Rider seat
Refer to "GENERAL CHASSIS" on page
4-1.
• Fuel tank
Refer to "FUEL TANK" on page 7-1.
2. Check:
• Crankcase breather hose "1"
Cracks/damage → Replace.
Loose connection → Connect properly.
ECA13450
Make sure the crankcase breather hose is
routed correctly.
3. Install:
• Fuel tank
Refer to "FUEL TANK" on page 7-1.
• Rider seat
Refer to "GENERAL CHASSIS" on page
4-1.
PERIODIC MAINTENANCE
EAS20610

ADJUSTING THE ENGINE IDLING SPEED

TIP
Prior to adjusting the engine idling speed, the
throttle bodies synchronization should be
adjusted properly, the air filter element should
be clean, and the engine should have ade-
quate compression.
1. Start the engine and let it warm up for sev-
eral minutes.
2. Install:
• Digital tachometer
(Use goods on the market)
3. Check:
• Engine idling speed
Out of specification → Adjust.
Engine idling speed
1150–1250 r/min
4. Adjust:
• Engine idling speed
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a. Turn the idle adjusting screw "1" in direction
"a" or "b" until the specified engine idling
speed is obtained.
Direction "a"
Engine idling speed is increased.
Direction "b"
Engine idling speed is decreased.
ECA39P1302
• Do not touch synchronizing screw "1".
Could affect the engine idling speed or
cause malfunction in other related parts.
• Do not touch the throttle adjust screw
"2". Could affect the engine idling speed
or cause malfunction in other related
parts.
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