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allen AR21 - Setting Engine RPM

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Engine Speed (RPM)
1) AR16 (13 HP Honda)
ENGINE SPEED WAS ADJUSTED AT THE FACTORY TO 3,700 RPM +100/-0 WITH
NO LOAD. DO NOT EXCEED THIS SPEED. If speed adjustment is required adjust as
follows:
1. Start engine and allow to warm up for 5 minutes.
2. Open throttle to full speed. Move throttle lever fully to the right position as standing
facing the recoil starter.
3. Loosen hex jam nut (item 11) on throttle lever limiting screw.
4. Turn throttle lever limiting screw clockwise to decrease maximum engine speed or
counterclockwise to increase maximum engine speed.
5. After adjusting to desired speed tighten jam nut on throttle lever limiting screw.
6. Move throttle lever to the left (idle speed) and then to the right (full speed). Verify RPM
and readjust if necessary.
7. Refer to Honda engine manual for additional information.
CHOKE LEVER “ON”
FUEL COCK “OFF”
CHOKE LEVER “OFF”
FUEL COCK “ON”
ENGINE THROTTLE CONTRO
L LEVER AT “TOP” SPEED
ENGINE THROTTLE CONTRO
L LEVER AT “IDLE” SPEED
ADJUST THROTTLE
LEVER LIMITING SCREW
TO ACHIEVE 3700+100/-0 RPM
NO LOAD SPEED.SECURE
SCREW WITH NUT
11 AS SHOWN.
11
3.5 - Setting Engine RPM
SECTION 3
SERVICE
055838 Page 56

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