Specifications

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18
The crankcase capacity of Vanguard V-Twin
engines is approximately:
• All (except Model 540000) – 48 oz. (1.4
liters) with filter
• Models 540000, 610000 – 79 oz. (2.3
liters) with filter
• Models 540000, 610000 – 71 oz. (2.1
liters) without filter
NOTE: When checking oil level, screw the dipstick
all the way in for accurate readings.
7. Start engine. Run at IDLE for 30 seconds and
stop engine. Recheck oil level and add if
required. Restart engine and check for oil leaks.
Governor Adjustments
CAUTION
• Incorrect adjustment could result in engine
overspeeding, causing engine damage,
property damage or personal injury.
AVOID INJURY! Complete the
governor static adjustment BEFORE
starting or running engine.
Static Governor Adjustment
(Before Running Engine)
1. Loosen governor lever nut. Push on governor
lever (1) until throttle is wide open, Fig. 30.
Fig. 30
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Do not bend governor link or distort
governor lever.
CAUTION:
2. Use a screwdriver (2) to rotate governor shaft
COUNTERCLOCKWISE as far it will go. Torque
governor nut to 70 in. lbs. (8 Nm).
3. Install throttle and choke control cables and
check for proper operation.
Dynamic Governor Adjustment
NOTE: Carburetor mixture adjustments must be
made before adjusting governed idle,
throttle restrictor and top no-load RPM.
• Tools Required, Fig. 31:
Tachometer #19200 (1) or #19389 (3)
Tang bender #19352 (2)
Fig. 31
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Manual Friction and Remote Speed Controls
Governor spring is installed in #1 hole (3) in governor
lever, Fig. 32.
Start and run engine for approximately 5 minutes to
allow engine to warm up.
1. Move control lever to SLOW position.
2. Use tool #19352 (1) to bend governed idle tang
(2) to obtain RPM shown:
a. 1750 RPM – Governed Idle Spring #805453
(RED).
b. 1100 RPM – Governed Idle Spring #805454
(WHITE).
For Briggs & Stratton Discount Parts Call 606-678-9623 or 606-561-4983
www.mymowerparts.com