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Stihl Backpack Blower | BR320 BR340 BR340L BR380 BR420 BR420C SR320 SR340 SR380 SR400 SR420 |
Replaces |
Stihl # 4203 120 0601, 4203 120 0603, 4203 120 0605, 4203 120 0607 Walbro # HD-4A, HD-4B, HD-13B Air filter replace # 4203 141 0301,4203 141 0301A,4203-007-1028 Grommet Replace # 0000 989 0516 Fuel line Replace # 0000-930-2803 |
● Drain screw: used to drain the fuel out of the carburetor.
● Idle mixture screw: controls the intake of fuel to adjust the engine for optimum running.
● Idle speed screw: controls the intake of air to adjust the engine’s idle speed.
● High-speed screw: adjustment for high speed.
● Low-speed screw: adjustment for low speed.
● Turn clockwise to decrease the RPM (revolutions per minute) while turning counterclockwise is for increasing the RPM. The amplitude for each adjustment is 1/4 turn.
● Pre-adjusted by manufacturer, easy to install.
● Stronger power & lower fuel consumption.
● Precisely aligned mounting hole makes perfect fit for your engine.
● Endurance test is performed before shipping.
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