Someone
Member
- Mar 12, 2001
- 865
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This is classic IMO:
Taken from:
http://motocrossactionmag.com/Yamah...S-FOURSTROKE-MOTOCROSS-SHOOTOUT-YAM-7117.aspx
"Let's cut through the effluvia! Rules changes made the four-stroke what it is today. It didn't get there by virtue of its power per cubic centimeter, power per pound or power per dollar. Nope! Without the AMA four-stroke exemption rule of 1998, the modern four-stroke would still be defined by the Honda XR600. Forget about EPA rules (they don’t affect closed-course racing machines), fleet fuel averages (they don’t apply to offroad bikes), cost savings (four-strokes cost more to produce) or any of the other hokey reasons that the nattering nabobs of negativity credit the rise of the four-stroke on. None of those things are players. Engine for engine, cc for cc, ounce for ounce, the two-stroke motocross engine is a vastly superior piece of equipment. If the two-stroke was invented today, it would sweep the four-stroke motocross engine off the face of the earth (which is exactly what it did 43 years ago—when the displacement rules were equal). The only way a four-stroke can compete with a two-stroke is if the displacement is larger. The AMA four-stroke rule change was the impetus for the switch (followed by significant bike sales for the 1998 Yamaha YZ400--which led every other manufacturer to jump into building four-stroke motocross bikes).
No four-stroke displacement rule, no four-stroke motocross sales. No sales, no four-strokes."
Taken from:
http://motocrossactionmag.com/Yamah...S-FOURSTROKE-MOTOCROSS-SHOOTOUT-YAM-7117.aspx
"Let's cut through the effluvia! Rules changes made the four-stroke what it is today. It didn't get there by virtue of its power per cubic centimeter, power per pound or power per dollar. Nope! Without the AMA four-stroke exemption rule of 1998, the modern four-stroke would still be defined by the Honda XR600. Forget about EPA rules (they don’t affect closed-course racing machines), fleet fuel averages (they don’t apply to offroad bikes), cost savings (four-strokes cost more to produce) or any of the other hokey reasons that the nattering nabobs of negativity credit the rise of the four-stroke on. None of those things are players. Engine for engine, cc for cc, ounce for ounce, the two-stroke motocross engine is a vastly superior piece of equipment. If the two-stroke was invented today, it would sweep the four-stroke motocross engine off the face of the earth (which is exactly what it did 43 years ago—when the displacement rules were equal). The only way a four-stroke can compete with a two-stroke is if the displacement is larger. The AMA four-stroke rule change was the impetus for the switch (followed by significant bike sales for the 1998 Yamaha YZ400--which led every other manufacturer to jump into building four-stroke motocross bikes).
No four-stroke displacement rule, no four-stroke motocross sales. No sales, no four-strokes."
