The disadvantages include: They require more regular maintenance hence not long lasting as compared to diesel engines of similar sizes; They are designed to be operated for few hours (two to four hours) per a day hence restricted to small fields
Kuyipa kwake ndi monga: imafuna kukonza pafupipafupi motero simagwira ntchito nthawi yayitali kusiyana ndi engine ya diesel yofanana kakulidwe; zimakonzedwa kuti zigwire ntchito mmaola ochepa (maola awiri mpaka anayi) pa tsiku motero zimagwiritsidwa ntchito pa minda yaying'ono