Troy-Bilt TB75SS Operator's Manual page 21

Engine Type ................................................................... Air-Cooled, 2-Cycle
Stroke ........................................................................ 1.25 in. (31.75 ram)
Displacement .................................................................... 1.9 cu in. (31 cc)
Clutch Type ........................................................................... Centrifugal
Idle Speed RPM ................................................................. 2,800 - 3,600 rpm
Operating RPM ................................................................. 6,600 - 10,-s_J0 rpm
Ignition Type ........................................................................... Electronic
Ignition Switch .............................................................. Momentary Flip Switch
Spark Plug Gap ................................................................. 0.020 in. (0.5 ram)
Lubrication ....................................................................... Fuel/Oil Mixture
Fuel/Oil R_tio .............................................................................. 32:1
C_rburetor ................................................................. Diaphragm, All-Position
Starter ............................................................................. Auto Rewind
Muffler ......................................................................... Baffled with Gu_rcl
Throttle ..................................................................... M_nu_l Spring Return
Fuel Tank C_p_city ................................................................ 13.5 oz. (400 ml)
Drive Shrift Housing ........................................................... Steel Tube, EZ-Link 'M
Throttle Control .................................................................. Finger-Tip Trigger
Unit Weight (No fuel, with cu_ing attachment, cutting _chment shield _nd D-handle) ........ 13.25 Ibs. (4.95 kg)
Cutting Mech_tnism ............................................... Bump Heard Dual String Cu_ing Heard
Line Spool .................................................................... Bump Line Releaser
Line Spool Diameter ............................................................. 3 inches (76.2 ram)
Trimming Line Diameter ....................................................... 0.095 inches (2.41 ram)
Cutting P_th Diameter .......................................................... 17 inches (43.18 cm)