Comments on: What Killed the Two-Stroke Motocross Bike and What May Bring it Back http://2wheeltuesday.com/2009/01/what-killed-the-two-stroke-motocross-bike-and-what-may-bring-it-back/ Tue, 16 Mar 2010 08:34:54 +0000 http://wordpress.org/?v=2.9.2 hourly 1 By: LTR450 2-stroke!!! - Page 2 - E2S http://2wheeltuesday.com/2009/01/what-killed-the-two-stroke-motocross-bike-and-what-may-bring-it-back/comment-page-1/#comment-15648 LTR450 2-stroke!!! - Page 2 - E2S Fri, 19 Feb 2010 05:38:44 +0000 http://2wheeltuesday.com/?p=1015#comment-15648 [...] Originally Posted by tecate/250r RiDeR thats why it well never happen. A Guy on Quadracer nation forum had this article, Pretty good. What Killed the Two-Stroke Motocross Bike and What May Bring it Back | 2WheelTuesday [...] [...] Originally Posted by tecate/250r RiDeR thats why it well never happen. A Guy on Quadracer nation forum had this article, Pretty good. What Killed the Two-Stroke Motocross Bike and What May Bring it Back | 2WheelTuesday [...]

]]> By: Danny Heys http://2wheeltuesday.com/2009/01/what-killed-the-two-stroke-motocross-bike-and-what-may-bring-it-back/comment-page-1/#comment-8780 Danny Heys Sun, 22 Nov 2009 03:21:32 +0000 http://2wheeltuesday.com/?p=1015#comment-8780 Bring back the 2 strokes its way more affordable and it gives riders a better challange COME ON ................ Bring back the 2 strokes its way more affordable and it gives riders a better challange COME ON …………….

]]> By: Long live 2 strokes http://2wheeltuesday.com/2009/01/what-killed-the-two-stroke-motocross-bike-and-what-may-bring-it-back/comment-page-1/#comment-6428 Long live 2 strokes Tue, 22 Sep 2009 21:41:10 +0000 http://2wheeltuesday.com/?p=1015#comment-6428 If any of you guys are really interested in saving the 2 stroke. Here is your chance. By the way, do not disrespect them. This is to give them your opinion and to help them know we are out here and we are still strong. Please know that Roy Janson does feel the same way as we do. I know DC feels the same way as we do. So again, be nice and thorough but courteous. Through deduction, hopefully these are the emails needed. Good luck and long live the 2 stroke. President CEO of AMA Rob Dingman email: rdingman@ama-cycle.org President CEO of Pro AMA Roger Edmondson email: redmondson@amaproracing.com Roy Janson email: rjanson@amaproracing.com All other board members are probably with just the ama-cycle.org address. so first initial plus last name, then @ ama-cycle.org AMA Board of Directors Stan Simpson, Chairman 413 FM 1103 Cibolo, TX 7808-1028 South Central Region Term expires February 2012 Jon-Erik Burleson, Assistant Treasurer 38429 Innovation Ct. Murrietta, CA 92563 KTM North America Term expires February 2009 Jim Williams, Vice Chairman 9950 Jeronimo Rd. Irvine, CA 92618-2084 Kawasaki Motors Corporation Term expires February 2010 John Ulrich, Member, Executive Committee 581-C Birch St. Lake Elsinore, CA 92530 Roadracing World Publishing, Inc. Term expires February 2009 Erik Buell 2799 Buell Dr. East Troy, WI 53120 Buell Motorcycle Company Term expires February 2010 Andy Goldfine 8 S. 18th Ave., West Duluth, MN 55806 Aerostich/Riderwearhouse Term expires February 2011 Charles Goman PO Box 81 Winder, GA 30680 Southeast Region Term expires February 2012 Perry King c/o AMA 13515 Yarmouth Dr. Pickerington, OH 43147 Northwest Region Term expires February 2010 Michael Lock 10443 Bandley Dr. Cupertino, CA 95014 Ducati North America Term expires February 2011 Arthur More 16153 Starlight Dr. Surprise, AZ 85374 Southwest Region Term expires February 2011 Bill Werner, Assistant Secretary 18405 Davidson Dr. Brookfield, WI 53045 North Central Region Term expires February 2010 Maggie McNally 114 Kent St. Albany, NY 12206 Northeast Region If any of you guys are really interested in saving the 2 stroke. Here is your chance. By the way, do not disrespect them. This is to give them your opinion and to help them know we are out here and we are still strong. Please know that Roy Janson does feel the same way as we do. I know DC feels the same way as we do. So again, be nice and thorough but courteous. Through deduction, hopefully these are the emails needed. Good luck and long live the 2 stroke.

President CEO of AMA Rob Dingman email: rdingman@ama-cycle.org
President CEO of Pro AMA Roger Edmondson email: redmondson@amaproracing.com
Roy Janson email: rjanson@amaproracing.com

All other board members are probably with just the ama-cycle.org address. so first initial plus last name, then @ ama-cycle.org

AMA Board of Directors
Stan Simpson, Chairman
413 FM 1103
Cibolo, TX 7808-1028
South Central Region
Term expires February 2012

Jon-Erik Burleson, Assistant Treasurer
38429 Innovation Ct.
Murrietta, CA 92563
KTM North America
Term expires February 2009

Jim Williams, Vice Chairman
9950 Jeronimo Rd.
Irvine, CA 92618-2084
Kawasaki Motors Corporation
Term expires February 2010

John Ulrich, Member, Executive Committee
581-C Birch St.
Lake Elsinore, CA 92530
Roadracing World Publishing, Inc.
Term expires February 2009

Erik Buell
2799 Buell Dr.
East Troy, WI 53120
Buell Motorcycle Company
Term expires February 2010

Andy Goldfine
8 S. 18th Ave., West
Duluth, MN 55806
Aerostich/Riderwearhouse
Term expires February 2011

Charles Goman
PO Box 81
Winder, GA 30680
Southeast Region
Term expires February 2012

Perry King
c/o AMA
13515 Yarmouth Dr.
Pickerington, OH 43147
Northwest Region
Term expires February 2010

Michael Lock
10443 Bandley Dr.
Cupertino, CA 95014
Ducati North America
Term expires February 2011

Arthur More
16153 Starlight Dr.
Surprise, AZ 85374
Southwest Region
Term expires February 2011

Bill Werner, Assistant Secretary
18405 Davidson Dr.
Brookfield, WI 53045
North Central Region
Term expires February 2010

Maggie McNally
114 Kent St.
Albany, NY 12206
Northeast Region

]]> By: jason http://2wheeltuesday.com/2009/01/what-killed-the-two-stroke-motocross-bike-and-what-may-bring-it-back/comment-page-1/#comment-5766 jason Wed, 26 Aug 2009 09:27:40 +0000 http://2wheeltuesday.com/?p=1015#comment-5766 i am currently waiting for a ktm 250f for my 21 birthday. which is better for enduro a 4stroke or 2stroke i am currently waiting for a ktm 250f for my 21 birthday. which is better for enduro a 4stroke or 2stroke

]]> By: meger z http://2wheeltuesday.com/2009/01/what-killed-the-two-stroke-motocross-bike-and-what-may-bring-it-back/comment-page-1/#comment-5435 meger z Sun, 16 Aug 2009 11:53:03 +0000 http://2wheeltuesday.com/?p=1015#comment-5435 the other thing that makes me dislike the way this sport has been stitched up to favor 4ts is that they are so boring to watch race. the other thing that makes me dislike the way this sport has been stitched up to favor 4ts is that they are so boring to watch race.

]]> By: Big Sven http://2wheeltuesday.com/2009/01/what-killed-the-two-stroke-motocross-bike-and-what-may-bring-it-back/comment-page-1/#comment-4875 Big Sven Sun, 26 Jul 2009 22:37:05 +0000 http://2wheeltuesday.com/?p=1015#comment-4875 I've never know a 4t that didn't need regular topping-up, including the hyper-well-maintained Honda XL420 Yoshimura/Bell/HVA MX special I unfortunately rode for a while, late 70's. Despite the huge cost it was slower than a standard HVA 250, ok? The old oil was used to oil the chain and stuff, but even that wound up in nature, not recycled. So, in my view, my 2t HVA's didn't use more oil than a 4t, nor pollute any more, just in another way. And the 2t's were very frugal in parts, in comparison; pistons/rings/oil-seals occasionally, the cranks and bores lasted 3 years before being, begrudgingly, updated. I've worked out they ran for 25,000kms of racing and practice. Each. Long live petroil! The future is 2t MX, technology now allows 2t's to run on digital injection and we've had 2t oil-pumps for years. Modern Evinrude 2t-outboards are, in fact, cleaner then most 4t-outboards! Thanks to digital injection. Interesting point: would such an injection-equipped MX-engine need an expansion-chamber? I firmly believe the 2t is the best engine for MX, the power-delivery and feel perfect to help you attain low lap-times. 2t rear-wheel braking was never an issue, it never caused any problems and you were always hard on the throttle before the bends anyway - my Honda 4t almost threw you over the bars every time you even inadvertently eased the throttle, anytime, anywhere! Very tiring to ride. Racing is about energy-management, and using energy trying to avoid closing the throttle is a no-no, that misuse of energy could loose you a race. And you can't (in my day, at least) race a 4t full-bore all the time, like a 125 2t. Tends to tangle valves, old chap. Expensive. Same circumstances a 2t would sneer at you for being a wally not able to keep up. I feel the market will reign, and 4t's will dissappear... again. I’ve never know a 4t that didn’t need regular topping-up, including the hyper-well-maintained Honda XL420 Yoshimura/Bell/HVA MX special I unfortunately rode for a while, late 70’s. Despite the huge cost it was slower than a standard HVA 250, ok? The old oil was used to oil the chain and stuff, but even that wound up in nature, not recycled. So, in my view, my 2t HVA’s didn’t use more oil than a 4t, nor pollute any more, just in another way. And the 2t’s were very frugal in parts, in comparison; pistons/rings/oil-seals occasionally, the cranks and bores lasted 3 years before being, begrudgingly, updated. I’ve worked out they ran for 25,000kms of racing and practice. Each. Long live petroil! The future is 2t MX, technology now allows 2t’s to run on digital injection and we’ve had 2t oil-pumps for years. Modern Evinrude 2t-outboards are, in fact, cleaner then most 4t-outboards! Thanks to digital injection. Interesting point: would such an injection-equipped MX-engine need an expansion-chamber? I firmly believe the 2t is the best engine for MX, the power-delivery and feel perfect to help you attain low lap-times. 2t rear-wheel braking was never an issue, it never caused any problems and you were always hard on the throttle before the bends anyway – my Honda 4t almost threw you over the bars every time you even inadvertently eased the throttle, anytime, anywhere! Very tiring to ride. Racing is about energy-management, and using energy trying to avoid closing the throttle is a no-no, that misuse of energy could loose you a race. And you can’t (in my day, at least) race a 4t full-bore all the time, like a 125 2t. Tends to tangle valves, old chap. Expensive. Same circumstances a 2t would sneer at you for being a wally not able to keep up. I feel the market will reign, and 4t’s will dissappear… again.

]]> By: pallister http://2wheeltuesday.com/2009/01/what-killed-the-two-stroke-motocross-bike-and-what-may-bring-it-back/comment-page-1/#comment-4175 pallister Mon, 06 Jul 2009 20:53:12 +0000 http://2wheeltuesday.com/?p=1015#comment-4175 i want 500cc 2 stroke back :-( i want 500cc 2 stroke back :-(

]]> By: Nick Jones http://2wheeltuesday.com/2009/01/what-killed-the-two-stroke-motocross-bike-and-what-may-bring-it-back/comment-page-1/#comment-3093 Nick Jones Tue, 02 Jun 2009 16:06:23 +0000 http://2wheeltuesday.com/?p=1015#comment-3093 Bring back the 2 strokes!! www.twostrokemotocross.com Bring back the 2 strokes!!

http://www.twostrokemotocross.com

]]> By: drew http://2wheeltuesday.com/2009/01/what-killed-the-two-stroke-motocross-bike-and-what-may-bring-it-back/comment-page-1/#comment-2372 drew Wed, 13 May 2009 11:08:46 +0000 http://2wheeltuesday.com/?p=1015#comment-2372 I somewhat agree, and from a green stand point if you can work a measuring jug, that is the polution ratio of your two stroke eg: 50:1 on the other hand your four stroke a little bit down the road perhaps the scraper rings could and probably will be passing oil, the valve stem oil seals could be leaking. All this because the majority of people are scared to touch this strange machine or can't afford it. Interesting thing is now how do you measure a bike like this, on the other hand buddy with the measuring jug is still at the same ratio 50:1, also remember both these technologies burned fossil fuels in the first place. Oh! and lets not talk noise polution. I somewhat agree, and from a green stand point if you can work a measuring jug, that is the polution ratio of your two stroke eg: 50:1 on the other hand your four stroke a little bit down the road perhaps the scraper rings could and probably will be passing oil, the valve stem oil seals could be leaking. All this because the majority of people are scared to touch this strange machine or can’t afford it.
Interesting thing is now how do you measure a bike like this, on the other hand buddy with the measuring jug is still at the same ratio 50:1, also remember both these technologies burned fossil fuels in the first place. Oh! and lets not talk noise polution.

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