More torque too
A four stroke also provides more low-end torque than a two stroke. This is a good thing for sailors who don't generally run their engines full out. However, outboard mounting brackets must be specifically designed to accomodate the extra torque. If you do go with the four stroke, make sure your existing bracket can take the strain. I recently replaced my 18 year old 9.9 Evinrude electric start (two stroke) with a Nissan 8 hp two stroke electric start. I decided not to go with the four stroke because of the weight and cost. I agree with what everyone else has written: two stroke engines may eventually be banned, but we are many, many years from that happening. The existing bans that I know of (outside of California) are very rare. In any case, even if it ever happens, the change will undoubtedly be implemented as all previous similar changes: the government will ban the sale and manufacture of new two strokes. The "fleet" of existing two stroke engines will evenutally be completely replaced. Others have written here about how they are glad they don't have to mix the gas and oil anymore with their four stroke. Because I only go through about a tank and half (about 9 gallons) a season, this was a very minor consideration for me. I bought my Nissan from Sailnet. No sales tax, no shipping. Unexpected bonus: my kids played with the box for months.