DINGO 150, User Manual

Page: 38 / 179

PERIODIC SERVICING
VALVE SETTING
Snowmobile engine compartment packaging lets performing a valve clearance setting without taking off the engine from the
snowmobile. For it motor block plastic and front suspension block should be taken off (see p. 13).
ATTENTION! Independent change of valve clearance may negatively affect the engine start and stable work. If needed, idle
adjustment is better to perform in a specialized workshop.
SPARK PLUG RESISTANCE TEST
Spark plug is an important engine component, the condition of which can be easily checked.
Spark plug condition may point at the engine condition. For example, white or black carbon on
center electrode isolator points at carburation problems. Don't try diagnosing such problems
independently
–
turn to an authorized service center.
You should check the plug on a regular basis (and clean it, if needed) which will help to prolong
its durability. If electrodes destruction becomes excessive, you should replace the spark plug
with a plug of an appropriate type
–
C7HSA or A7RTC. Under conditions of severe frosts (-30
0С and lower) it is recommended to degrade a plug heat rating by one grade, it means to install
C6HSA type.
Before installing the spark plug measure a gap between electrodes. It should be as specified in
the scheme.
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PERIODIC SERVICING