2010 Yamaha Motorsports Grizzly 350 Auto. 4x4 IRS Owners Manual - Page 102

2010 Yamaha Motorsports Grizzly 350 Auto. 4x4 IRS Manual

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TIP A diagnostic tachometer is needed to make this adjustment. 1. Start the engine and warm it up. TIP 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 necessary, adjust it to specification by turning the throttle stop screw at the carburetor. To increase the engine idling speed, turn the throttle stop screw in direction (a), and to decrease it, turn the screw in direction (b). 1. Throttle stop screw Engine idling speed: 1450-1550 r/min TIP If the specified idling speed cannot be obtained as described above, have a Yamaha dealer make the adjustment. 8 8-26

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8-26
8
TIP
A diagnostic tachometer is needed to make this
adjustment.
1.
Start the engine and warm it up.
TIP
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
throttle stop screw at the carburetor. To in-
crease the engine idling speed, turn the throt-
tle stop screw in direction (a), and to decrease
it, turn the screw in direction (b).
TIP
If the specified idling speed cannot be obtained as
described above, have a Yamaha dealer make the
adjustment.
1.
Throttle stop screw
Engine idling speed:
1450–1550 r/min