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The throttle cable should always be checked for proper adjustment when a new machine is
set up for delivery and anytime a machine is in for service.
4282 Series – Throttle Cable Adjustment
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If the throttle is not opening all the way on a backpack blower, performance and
engine cooling will suffer.
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To adjust the throttle cable on a 4-MIX® blower, turn the small screw that is located
in the throttle trigger until the proper throttle opening is achieved.
Ignition Module
Check for spark with a spark tester that loads the ignition module.
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Modules can have intermittent faults: Heat related failures where the spark returns
after the module cools down, or even show spark but not start the engine.
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Check for spark. The spark plug must be installed in the cylinder when performing
an ignition module test with the STIHL ZAT 4.
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Holding the plug against the cylinder and pulling the starter rope is not a valid test
of an ignition module.
Inspect the spark plug and verify heat range.
;
Verify that the correct spark plug is installed. The spark plug for an FS 100 is hotter
than the spark plug for a BR 600.
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