I tend to drive my rig hard and also ski behind it regularly, towing tubes etc. My theory is that as it makes more HP and Torque lower in the rev range (being a two stroke) I don't have to ring its neck to make it deliver HP, therefore it uses less fuel. I am not saying in every appication they will use less fuel, it just happens to use less in mine. I dare say that the commercial guys who are using them and are pushing big loads would recieve the same benefits. Talking to one of the water taxi skippers they are saving 1-2 liters an hour. The boat is working hard carrying up to 12 people. They say with the ETEC that it can plane a lot quicker and can carry a bigger load than what they had before, more torque and hp early in the rev range will do that for you.
I maintained my engine over the three year period, greased usual points, kept it clean, flushed it and sprayed some stuff under the cowl but that was it. But I made sure that the setup was spot on. Engine height set up for how i use it, mainly trying to go fast and propped to spin close to 6000rpm when one up and half a tank of fuel so that when it is loaded it is sitting around 5500rpm. I spoke to one of the service techs from BRP in Sydney to confirm this. This is also better for my fuel consumption apparently as the engine is not loaded all of the time. The higher the load due to bad set up, the more fuel it tips in I have been told... makes sense.
Noel's link about cars makes perfect sense. Do you really think that the major car companies in the current economic climate are going to reinvest Millions into looking at a new technology when they have already tipped in billions trying to develop a known technology that they already sold to billions of consumers world wide and convinced them in the process that that it is the right technology for that sector? They are going Electric now. Have a read of Noel's thread.
At the end of the day, there is not a bad engine out there. You just have to make an informed decision about which one suits your application the best. I have owned Yamaha's both in two and four stroke, Mercs, Suzuki's and have driven the rest. The ETEC suits my application the best.
I am just standing up for all the people that own them or are considering change (No Chicken tonight, which is where this all started) and cop a flogging from everyone who has heard a bad story.
Stick with your Honda, it might last 5000hrs but would not pull a fat kid off a cup cake
Cheers
Madshagger