Cannondale 2002 Blaze, Owner'S Manual

Page: 141 / 180

139
EXHAUST
Spark arrester cleaning
The spark arrester must be purged of carbon build up at
the intervals specified in the maintanace schedule of this
Owner’s Manual.
1. Move the vehicle to a suitable outdoor location. Place
the vehicle on a level surface, shift the transmission into
NEUTRAL and apply the parking brake. Make sure the
engine and exhaust system are completely cool.
2. Remove the purge bolt, and start the engine.
3. Increase the engine speed with the throttle lever
repeatedly while momentarily blocking the end of the
muffler / spark arrester with a clean shop towel, then
quickly remove it. This technique causes brief system
back pressure and will force carbon build-up out the
purge bolt hole. Also, while performing this procedure
to help dislodge carbon build-up, gently tap the muffler
housing with rubber mallet. Continue this technique and
discontinue after 1 minute. Limiting yourself to under 1-
minute helps reduce the risk of burns from the exhaust
system which will reach very high temperatures.
4. Stop the engine and allow it to cool completely. Then
reinstall the purge bolt securely.
1. Muffler/ spark arrester
2. Purge bolt
(2)
1
2