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Dirt Bike Mods & Maintenance
Expert opinions on AMA 144 rule?
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[QUOTE="RM_guy, post: 976473, member: 20652"] Very interesting discussion with good insight from Eric. The thing that bothers me is that the push towards 4 strokes was due to environmental concerns with emissions. Granted 4 strokes can meet that standards easier but there was also efforts to get 2 strokes in the game but they are all on the back burner or canceled because 4 strokes are the defacto standard now. When the first YZF400 came out I thought, that sounds like high maintenance, and secretly wished for it’s demise. When they took hold and then the YZF250 came out I made a note to never buy a used 4 stroke because chances are they weren’t maintained and the next buyer is in for a huge headache and lightening of the wallet. $2500 to rebuild a top end is just crazy. When they stop making 2 strokes I keep mine and nurse it along for as long as I continue riding. Not only are 4 stokes harder and costlier to maintain, they are outrageously noisy. Part of what gives it more power is an unrestricted (read noisy) exhaust. So now we have a technology that was suppose to be better for the environment but is way louder that what it is replacing. And to make a 4 stroke quieter you loose more power than making a 2 stroke quiet so the power begins to equal out. I guess my point is that there didn’t seem to much planning on moving to 4 strokes. It was a knee jerk response to the environmentalist and 4 strokes are perceived to be a cleaner way to go. Now were getting hammered for loud bikes that the greenies encouraged us to go to. Sounds like the greenies did more planning on how to get rid of dirt bikes completely than the AMA did to protect our rights in the future. [/QUOTE]
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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
Expert opinions on AMA 144 rule?
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