Honda FourTrax Rancher TRX420FM1 2020, Owner'S Manual

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Servicing Your Honda 157
Spark Arrester
Refer to Safety Precautions on page 103.
The spark arrester must be serviced every 100 operating hours to
maintain its efficiency.
Regular servicing prevents carbon build up (which can diminish
engine performance) and also complies with USDA regulations for
regular maintenance to assure proper function. The spark arrester
prevents random sparks from the combustion process in your engine
from reaching the environment.
The use of safety glasses is recommended for this procedure.
Because of the possible fire hazard, check that there are no
combustible materials in the area before purging the spark arrester.
1. Select a well-ventilated area free of combustible materials and
make sure the exhaust pipe is cool.
2. Remove the bolt (1).
3. Start the engine and rev it up approximately twenty times while
momentarily creating exhaust system back pressure by blocking
the end of the muffler with a shop towel.
4. Stop the engine and allow the exhaust pipe to cool.
5. Reinstall the bolt securely.
(1)
(1) bolt
REAR
20 TRX420TM1 FM1 FM2-31HR36600.book 157 ページ ２０１９年４月５日 金曜日 午前１１時５６分