Small gas engines were very dirty:
20 years ago. At that time smoke belching L-Head2 cycle mowers and low compression 4 cycle L-head engines were the norm. Of course the 4 cycle machines were less polluting and in some cases more fuel efficient.
However, today in the advent of high compression OHV engines and no more 2 cycle, small gas engines run MUCH CLEANER! than they EVER have. In fact if you compared a current OHV Honda powered Toro to ANY 2 CYCLE Lawn Boy you would find about a drastic reduction if fuel usage. Also the difference in emissions would be VERY pronounced. Of course this is only talking gas mowers.
BTW I am NOT talking out of my A$$. I worked as a engine technician at the local hardware store for years. I do form an informed opinion about power equipment.
WK78
20 years ago. At that time smoke belching L-Head2 cycle mowers and low compression 4 cycle L-head engines were the norm. Of course the 4 cycle machines were less polluting and in some cases more fuel efficient.
However, today in the advent of high compression OHV engines and no more 2 cycle, small gas engines run MUCH CLEANER! than they EVER have. In fact if you compared a current OHV Honda powered Toro to ANY 2 CYCLE Lawn Boy you would find about a drastic reduction if fuel usage. Also the difference in emissions would be VERY pronounced. Of course this is only talking gas mowers.
BTW I am NOT talking out of my A$$. I worked as a engine technician at the local hardware store for years. I do form an informed opinion about power equipment.
WK78