Sings on month ago I have using Yamaha 2.5 KVA petrol engine its a m r engine 2.5 KVA Watts general power of 3 hours in a day is good but there are some like some Indian boys Yamaha home address I dont know if not it does not satisfied but we have to buy for all that you have a mind thats all I will not recommend this summer petrol engine its or petrol conduction is more on this engine