At the EPA website it states this:
How much will these controls cost?
Your cost for emission controls depends on the control used, manufacturing processes, the size of the manufacturer, and other issues. Many off-highway motorcycle models are already equipped with four-stroke engines, and we estimate the cost for these models to be less than $30. We estimate the cost to replace a two-stroke engine with a four-stroke engine is about $220 to $360 depending on engine size. But, with a four-stroke engine, you are likely to recoup a large portion of this cost over the life of your motorcycle because a four-stroke engine consumes approximately 25% less fuel and much less oil than a two-stroke engine. Four-stroke engines are also more durable, so major repairs are less frequent.
Is it just me or does this not make any sense. What are there figures based on? I read the web site words but all you hear is blah blah blah.
Anyways thats my thoughts.
And what about those dang aroesol cans!
Will