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IDLE SPEED ADJUSTMENT/
VALVE CLEARANCE ADJUSTMENT
3 - 8
EC35M021
IDLE SPEED ADJUSTMENT
1. Start the engine and thoroughly warm it
up.
2. Adjust:
Idle speed
Adjustment steps:
Adjust the pilot screw.
Refer to "PILOT AIR SCREW ADJUST-
MENT" section.
Turn the throttle stop screw 1 until the
engine runs at the lowest possible speed.
To increase idle speed
Turn the throttle stop screw 1 in a.
To decrease idle speed
Turn the throttle stop screw 1 out b.
Engine idling speed:
1,450 ~ 1,550 r/min
VALVE CLEARANCE ADJUSTMENT
NOTE:
The valve clearance should be adjusted
when the engine is cool to the touch.
The piston must be at Top Dead Center
(T.D.C.) on compression stroke to check or
adjust the valve clearance.
1. Remove:
Air scoop (right) 1
Air filter case 2
2. Remove:
Tappet cover (intake side) 1
Tappet cover (exhaust side) 2
3. Remove:
Timing plug 1
Straight plug 2
O-rings
INSP
ADJ
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