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Stihl BT 121 User Guide

Stihl BT 121
51 pages
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ZyAIR
Wireless LAN Utility
User's Guide
Version 2.0
September 2003

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Stihl BT 121 Specifications

Engine Specifications IconEngine Specifications
displacement30.8 cm3
bore35 mm
stroke32 mm
engine power1.3 kW
max engine speed without drilling tool12, 300 rpm
engine idle speed2, 800 rpm
Sound and Vibration IconSound and Vibration
sound pressure level101 dB (A)
sound power level107 dB (A)
vibration left handle2.6 m/s2
Ignition System IconIgnition System
electrode gap0.5 mm
spark plug threadM 14 x 1.25; 9.5 mm long
spark plugBosch WSR 6 F, NGK BPMR 7 A, Champion RCJ 6 Y
Fuel System IconFuel System
fuel tank capacity0.64 l
carburetor typeAll position diaphragm carburetor
air filterPaper filter element
Drilling Gear IconDrilling Gear
gear typeTwo-stage spur gear drive
gear ratio47.5:1
max spindle speed190 rpm
Weight and Dimensions IconWeight and Dimensions
weight without drilling tool9.4 kg
length of unit400 mm
width of handle frame530 mm

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