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Adjust the gap to specification (see General Information
section - General Specifications). Use a feeler gauge to
check the gap.
When installing the spark plug, be sure to tighten it
securely. A new spark plug should be tightened 1/2 turn
once the washer contacts the cylinder head. A used spark
plug should be tightened 1/8 - 1/4 turn once the washer
contacts the cylinder head.
Liquid Cooling System
NOTE: Debris in front of the engine or packed
between the cooling fins of the radiator can reduce
cooling capability. Using a garden hose, wash the
radiator to remove any debris preventing air flow.
CAUTION
Arctic Cat does not recommend using a pressure
washer to clean the radiator core. The pressure may
bend or flatten the fins causing restricted air flow, and
electrical components on the radiator could be dam-
aged. Use only a garden hose with spray nozzle at nor-
mal tap pressure.
The cooling system capacity can be found in the specifi-
cations chart. The cooling system should be inspected
daily for leakage and damage. If leakage or damage is
detected, take the ATV to an authorized Arctic Cat ATV
dealer for service. Also, the coolant level should be
checked periodically.
CAUTION
Continued operation of the ATV with high engine tem-
perature may result in engine damage or premature
wear.
NOTE: High engine RPM, low vehicle speed, or
heavy load can raise engine temperature. Decreasing
engine RPM, reducing load, and selecting an appro-
priate transmission gear can lower the temperature.
When filling the cooling system, use a coolant/water
mixture which will satisfy the coldest anticipated weather
conditions of the area in accordance with the coolant
manufacturer's recommendations. While the cooling sys-
tem is being filled, air pockets may develop; therefore,
run the engine for five minutes after the initial fill, shut
the engine off, and then fill the cooling system to the bot-
tom of the stand pipe in the radiator neck.
Checking/Filling
1. Locate the coolant reservoir on the right side behind
the radiator.
ATV0052
2. Remove the cap and fill with the appropriate coolant
until coolant level is between the LOW and FULL
lines. Do not overfill.
3. Install the cap on the reservoir.
Muffler/Spark Arrester
At the intervals shown in the Periodic Maintenance
Chart, clean the spark arrester using the following proce-
dure.
Wait until the muffler cools to avoid burns.
1. Remove the cap screws securing the spark arrester
assembly to the muffler; then loosen and remove the
arrester.
2. Using a suitable brush, clean the carbon deposits
from the screen taking care not to damage the screen.
! WARNING
KC338B
KC334A
11
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Table of Contents
Troubleshooting
