Diesel Engine 3000/3600rpm 5hp, 7hp, 10hp, 12hp CE, EPA approval Model ... (E) 10HP ETK186FA(E) 13HP Type Single cylinder,vertical,direct injection,4-stroke,air cooled diesel engine Bore×stroke(mm) 70×55 ... Compression ratio 20:01 20:01 20:01 20:01 Engine speed(rpm) 3000/3600 3000/3600 3000/3600 3000/3600 ...