Section 11
Reassembly
11
11.31
Figure 11-116. Engage Pawls and Torque Mounting
Screws.
Install Muffler
1. Install a new exhaust gasket onto the exhaust
studs.
2. Install the muffler and heat shield assembly.
Install the hex flange screw, with a flat washer,
through the front support bracket, into the
crankcase boss.
Torque hex flange nuts to:
CS4, CS6: 6-8 N·m (53-71 in. lb.)
CS8.5-12: 18-22 N·m (159-195 in. lb.)
Torque hex flange screw to:
CS4, CS6: 7 N·m (62 in. lb.)
CS8.5-12: 15 N·m (133 in. lb.)
Prepare the Engine for Operation
The engine is now reassembled. Before starting or
operating the engine be sure to do the following:
1. Make sure all hardware is properly torqued.
2. Make sure the oil drain plugs and oil sentry
control unit are tightened securely.
3. Fill the crankcase with the correct oil. Refer to the
oil recommendations and procedures in the
General Information and Lubrication System
sections.
4. Reconnect the rectifier-regulator, if so equipped.
Testing the Engine
It is recommended that the engine be operated on a
test stand or bench prior to installation on a piece of
equipment.
1. Set the engine up on a test stand. Check gas and
oil levels. Start the engine and run for 5-10
minutes between idle and midrange. Adjust the
carburetor settings as required. Low idle speed
should be set to 2000 RPM (+ 150) or application
specifications.
2. Make sure the maximum engine speed does not
exceed:
Figure 11-117. Torquing Muffler Mounting Screws.
Type/Engine Speed
Tapered Shaft Models
Others
Maximum
3750 ± 100 RPM
3800 ± 100 RPM
Adjust the throttle, choke, and/or high speed
stop screw as necessary. See Figures 11-118, 11-
119, and 11-120 on page 11.32. Refer also to Fuel
System and Governor section.
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