Use a feeler gauge to check/set the clearance. Loosen the
13mm nut on the rocker adjuster on the rocker arm and
use a Torx T40 driver or metric Allen wrench (depending
on your adjuster type) to adjust the clearance. The feeler
gauge should move between the valve and the rocker
arm with resistance. Once the rocker arm clearance is set
at the correct clearance, hold the adjuster and tighten the
13mm nut.
Recheck the clearance to ensure you didn’t move it while
tightening (it may take a few tries to get it right). Repeat
process for remaining valves.
Torque specs: Valve Cover- 70 in. lbs. (8 Nm), Rocker Arm
Adjuster Lock Nut- 70in. lbs. (8 Nm). Recheck valve
clearance after 10 hours and then yearly.
Warning: Make sure the push rod is seated in the rocker
arm cup. If not, this will cause severe engine damage and
is not covered under warranty.
Note - you may re-use the valve cover gaskets, if you carefully
reinstall the covers and see oil leaking after running, order and
install new gaskets.
BELT TENSION ADJUSTMENT: (EVERY 100 HOURS)
Please see the belt tension instructional video for step-by-
step procedures at the Mud Buddy service web page.
https://www.mudbuddy.com/resources/tips-and-videos
SPARK PLUG GAP (100 HOURS):
Check the gap with a feeler gauge. If necessary, reset the
gap to .032 to .035. Install and tighten the spark plug to
the recommended torque.
Specications
Spark Plug Gap .032 to .035 in
Spark Plug Torque 160-inch pounds
INSPECT MUFFLER:
Remove accumulated debris from muer area and
cylinder area. Inspect the muer for cracks, corrosion
and other damage. If damaged, install a replacement
muer.
CHANGING THE OIL FILTER:
All models are equipped with an oil lter. Replace with
every oil change. Use Briggs part number 492932-S or
equivalent.
- Drain the oil from the engine.
- Remove the oil lter.
- Before installing the new lter, clean any dirt o of the
oil lter area and pre-lubricate the lter gasket ring.
- Install and tighten the lter by hand.
- Add oil to the full mark on the dipstick.
- Start and run the engine. Check the oil lter for leaks.
Let cool. Re-check the oil level.
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