Model HG168F(E) Type 4-stroke OHV25 single-cylinder with air- cooled Bore譙troke 68mm X 54mm Displacement 196ml Compression ratio 8.5:1 Max power output 4.8kw/3600rpm Recommded power using 4.0kw/3600rpm Max Torque 10N.m/3000rpm Lgnltion system non-contract Rransistorized ignition (TCI) Start model Manual electric/manual Air cleaner Semi-dry type Fuel tank capacity 3.6L Fuel Consumption 395g/kw.h Oil capacity 0.6L Dimensions(L X W X H)(mm) 312X365X334 Net weight(kg) 15/17(E) Model HG190F(E) Type 4-stroke OHV25 single-cylinder with air- cooled Bore譙troke 90mmX66mm Displacement 420ml Compression ratio 8.0:1 Max power output 11.7kw/3600rpm Recommded power using 10.5kw/3600rpm Max Torque 23N.m/3000rpm Lgnltion system non-contract Rransistorized ignition (TCI) Start model Manual electric/manual Air cleaner Semi-dry type Fuel tank capacity 6.5L Fuel Consumption 365g/kw.h Oil capacity 1.1L Dimensions(L X W X H)(mm) 403x449x440 Net weight(kg) 31/33(E) Model HG188F(E) Type 4-stroke OHV25 single-cylinder with air- cooled Bore譙troke 88mmX64mm Displacement 389ml Compression ratio 8.0:1 Max power output 9.5kw/3600rpm Recommded power using 7.8kw/3600rpm Max Torque 23N.m/2500rpm Lgnltion system non-contract Rransistorized ignition (TCI) Start model Manual electric/manual Air cleaner Semi-dry type Fuel tank capacity 6.5L Fuel Consumption 374g/kw.h Oil capacity 1.1L Dimensions(L X W X H)(mm) 403x449x440 Net weight(kg) 31/33(E) Model HG173F(E) Type 4-stroke OHV25 single-cylinder with4-stro air- cooled Bore譙troke 73mmX58mm Displacement 242ml Compression ratio 8.2:1 Max power output 5.8kw/3600rpm Recommded power using 5.1kw/3600rpm Max Torque 14.5N.m/2500rpm Lgnltion system non-contract Rransistorized ignition (TCI) Start model Manual electric/manual Air cleaner Semi-dry type Fuel tank capacity 6L Fuel Consumption 374g/kw.h Oil capacity 0.6L Dimensions(L X W X H)(mm) 378X428X408 Net weight(kg) 25/26(E) Model HG170F(E) Type 4-stroke OHV25 single-cylinder with air- cooled Bore譙troke 70mmX54mm Displacement 196ml Compression ratio 8.5:1 Max power output 4.8kw/3600rpm Recommded power using 4.0kw/3600rpm Max Torque 11N.m/2500rpm Lgnltion system non-contract Rransistorized ignition (TCI) Start model Manual electric/manual Air cleaner Semi-dry type Fuel tank capacity 3.6L Fuel Consumption 395g/kw.h Oil capacity 0.6L Dimensions(L X W X H)(mm) 312X365X334 Net weight(kg) 15/17(E) Have EPA,ISO9001,CE,GS certificates.need more detailed information,please give me your email I will send our catalog to you