Troy-Bilt TB490BC Operator's Manual page 26

Engine lype .......................................................................................................................................... Air-Cooled, 4-Cycle
Displacement ......................................................................................................................................... 1.6 cu. in. (26.2 cc)
Clutch lype ......................................................................................................................................................... Centrif'ugal
Operating RPM ....................................................................................................................................... 6,800 - 9,300 rpm
Idle Speed I_PM ........................................................................................................................................ 3,000-3,600 rpm
Ignition lype .......................................................................................................................................................... Electronic
Ignition Switch ................................................................................................................................................ Rocker Switch
Valve clearance [intake) ......................................................................................................... 003-.006 in. [.076-.152 mm)
Valve clearance [exhaust) ...................................................................................................... 013-.016 in. [.330-.406 mm)
Spark Plug Gap ................................................................................................................................ 0.025 inch (0.655 mm)
Lubrication ........................................................................................................................................................... SAE 30 Oil
Crankcase Oil Capacity ................................................................................................................................ 3.4 oz (100 ml)
I-uel ....................................................................................................................................................................... Unleaded
Carburetor ....................................................................................................................................... Diaphragm, All-Position
Starter ............................................................................................................................................................... Auto Rewind
Muffler ..................................................................................................................................................... Baffled with Guard
I hrottle ............................................................................................................................................... Manual Spring I_eturn
I-uel Iank Capacity ........................................................................................................................................ 12 oz (355 ml)
Drive Shaft Housing .................................................................................................................. Aluminum I ube (EZ-Link ]_A)
I hrottle Control ........................................................................................................................................ I-inger-I ip I rigger
Unit Weight (No Fuel, with J-handle, Cutting attachment shield and Cutting attachment) ........................ 13.15 Ibs (6 kg)
Cutting Mechanism ................................................................................. 4-1 ooth Cutting Blade, Dual String Cutting Head
Line Spool ............................................................................................................................................. Bump Line Releaser
Line Spool Diameter ............................................................................................................................ 4 inches (101.6 ram)
I rimming Line L)iameter ..................................................................................................................... 0.105 inch (2.68 ram)
Cutting Path Diameter, Cutting Attachment ........................................................................................ 18 inches (45.7 cm)
Cutting Path Diameter, Cutting Blade .................................................................................................... 8 Inches (204 ram)
Shoulder Harness ................................................................................................................................... Single Quick-Snap
_AII _e_ifiRati_ns a_e base_n [he latest p_d[ict infori_a_i0i_ available at t Be _ii# e ofprinti_ig We reseWet #etig[itto
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