Briggs & Stratton E Series, 550e Series, 09P700, 550ex Series, 09P600 Service Information

ADVANCE PRODUCT SERVICE INFORMATION

Not for Reproduction

APSI #:

DATE:

SUBJECT:

MODELS:

Briggs & Stratton has recently introduced the new E Series™ engine family, which includes the 550e Series™ and
550ex Series™ OHV engines.

This APSI provides basic servicing information in advance of the repair manual currently in development. System
tests and component removal/installation procedures are common with most other Briggs & Stratton engines. See
the Illustrated Parts List for service part numbers. The specifications, part numbers and/or procedures provided
here are PRELIMINARY and subject to change.

85

JULY 2012

INTRODUCTION OF E SERIES™ ENGINES

09P600, 09P700 OHV VERTICAL SHAFT ENGINES

Figure 1

BRIGGS & STRATTON
Distribution Sales & Customer Support

Copyright© 2012 Briggs & Stratton Corporation

All language translations of this document are
derived from the original English source le.

Rev.-

Page 1 of 12

ENGINE DIMENSIONS

4.746

7.442

(345.96)

(39.7)

Not for Reproduction

Dimensions are shown in inches (millimeters).

13.62

(120.54)

(189.04)

7.442

(189.04)

6.21

(157.7)

7.41

(188.3)

9.13

(231.98)

3.19

(81.15)

3.02

(76.68)

2.41

(61.15)

3.68

(93.54)

1.56

Figure 2

Page 2 of 12

SERVICE NOTES

Not for Reproduction

Flywheel

The flywheel overlaps the governor crank at the top of the cylinder. There are two openings in the flywheel casting
to allow access to the governor nut, after the blower housing has been removed.

To remove the flywheel nut, remove the ignition armature and slip a flywheel strap wrench through the armature
opening in the flywheel guard (blower scroll). The flywheel can be removed from the crankshaft using Flywheel
Puller 19069.

Carburetor

For draining the bowl, there is a 1/4-turn hex plug with o-ring installed in the bottom of the float bowl. (CAUTION: Do
not attempt to unscrew the plug, as it is not threaded.)

The float bowl installs in the carburetor in only one direction. There is a cavity molded into the bowl that provides
clearance for the emulsion tube and jet. If the bowl cannot be fully seated into the carburetor by hand, turn it 180
degrees and then reinstall.

Note that the bowl screws are self-tapping. To avoid cross-threading when installing the screws, turn them
counterclockwise until the screw threads drop into place, then tighten clockwise.

The needle valve seat can be removed by threading in a screw, then clamping the screw head in a vise. Carefully
twist and pull on the carburetor body to extract the seat. When installing a replacement seat, make sure the
rounded edge is pressed into the opening in the carburetor body and the flat edge is facing the bowl.

Oil Capacity

This engine requires a reduced oil capacity of just 15 oz (.44 L). A new oil bottle has been designed for service
under part number 100113. The bottle contains the correct amount for this engine in support of our message to
consumers to “pour in the entire bottle”.

Please make sure to remind customers that this engine requires only 15 oz (.44 L) and not the higher capacity of
our other engines.

We anticipate that overfilling could be an issue until customers become accustomed to the difference. Typical
symptoms of overfilling would be white smoke from the exhaust, sparkplug fouling, oil contamination of the air filter
and/or oil leaking from the air filter area.

Blower Housing Barcode Label

In the event that the engine blower housing must be replaced, the barcode label can be transferred to the new
blower housing as follows:

1. After installation, clean the surface of the new blower housing to remove any traces of dust, oil, or grease.

2. Wash hands thoroughly to remove dirt and oils from the skin.

3. Carefully peel off the label from the original blower housing and reposition it in the same location on the new
blower housing.

4. Press firmly to remove any air bubbles and ensure good adhesion.

Page 3 of 12

ASSEMBLY INFORMATION

Not for Reproduction

Piston Assembly and Orientation

The notch in the piston, the piston pin clip, and the MAG identification on the connecting rod all face the flywheel
side (mag side) of the engine (Figure 3). When installing replacement piston rings, the paint stripes on the rings
must be to the right side of the ring gaps.

Figure 3

Sump and Seals

Install the sump bolts in positions 1 through 6 (Figure 4). Install the self-tapping sump screw in position 7. Do not
use the self-tapping screw in any other hole location. Using the sequence shown, tighten the bolts to the torque
specification provided in this APSI.

53

6

2

1

7

Figure 4

4

Page 4 of 12