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MAINTENANCE
General Maintenance
Under Hood Air Intake System
The under-hood air intake system on
Indy 340’s should normally be left
open. However, for maximum
performance in temperatures above
35° F(2° C) and i n loose snow, the
door should be closed and latched
(A). Pull the strap out and up to
latch the door and reverse the
procedure to open it.
Spark Plug Selection
It’s very important to use the correct spark plug for your machine. A
spark plug with a heat range too high will cause engine damage. A
spark plug with a heat range too low will cause excessive fouling and
engine malfunctioning.
In selecting a spark plug heat range for production, a manufacturer
assumes that the engine will be operated under extreme heavy duty
conditions and selects a spark plug that will protect the engine from
internal damage if the purchaser actually does operate the engine in this
manner. This selection could cause the customer who normally
operates the engine under medium or light duty to have spark plug
failure. Refer to your Owner’s Manual Supplement for the specific
spark plug to be used in your machine.
A
A plug with a heat range too high will always cause engine
damage if the engine is operated in conditions more severe
than that for which the spark plug was intended.
CAUTION
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