Who won the first championship on a 4 stroke?

Tracks: within: of Lat. and Long. or or:    

Henry actually gave the American debut of the YZM at Gatorback Cycle Park in Gainesville, Florida, in 1998 for the opening round of the AMA Motocross Championship. He got great starts in both motos and finished eighth overall.


In 2004 only one 125cc rider - Bubba Stewart.
By 2005, there were no 125's... in the 125 class.

Bubba Stewart raced a 2-stroke until start of 06.


Albertyn, Greg
YEAR BIKE STROKE CC's'
2000 Suzuki 2 250

Brown, Mike
YEAR BIKE STROKE CC's'
2001 Kawasaki 2 125
2002 Kawasaki 2 125
2004 Yamaha 4 250

Button, Jimmy
YEAR BIKE STROKE CC's'
1999 Yamaha 4 450

Carmichael, Ricky
YEAR BIKE STROKE CC's'
2000 Kawasaki 2 250
2003 Honda 2 250
2004 Honda 4 450
2005 Suz SX 2 250
2005 Suzuki 4 450

Damon Huffman
YEAR BIKE STROKE CC's'

Ferry, Tim
YEAR BIKE STROKE CC's'
1999 Yamaha 2 250
2000 Yamaha 4 426
2001 Yamaha 4 450
2002 Yamaha 4 450
2003 Yamaha 4 450
2004 Yamaha 4 450
2005 Yamaha 4 450
2006 Yamaha 4 450
2007 Yamaha 4 450
2008 Yamaha 4 450

Fonseca, Ernesto
YEAR BIKE STROKE CC's'
2001 Yamaha 4 250
2005 Honda SX 2 250

Henry, Doug
YEAR BIKE STROKE CC's'
1998 Yamaha 400 4 450
1999 Yamaha 4 450

Hepler, Broc
YEAR BIKE STROKE CC's'
2004 Suzuki 4 250

Langston, Grant
YEAR BIKE STROKE CC's'
2004 KTM SX 2 250
2005 Kawa MX 4 250

LaRocco, Mike
YEAR BIKE STROKE CC's'
2003 Honda 4 450
2005 Honda SX 2 250

Reed, Chad
YEAR BIKE STROKE CC's'
2002 Yamaha 4 250
2004 Yamaha 4 450
2004 Yamaha SX 2 250
2005 Yam SX 2 250

Smail, Lance
YEAR BIKE STROKE CC's'
1996 KTM 4 540

Stewart, Bubba
YEAR BIKE STROKE CC's'
2003 Kawasaki 2 125
2004 Kawasaki 2 125
2005 Kawasaki 2 250
2006 Kawasaki 4 450

Tortelli, Sabastian
YEAR BIKE STROKE CC's'
2000 Honda 2 250

Villamin, David
YEAR BIKE STROKE CC's'
2000 Yamaha 2 250
2003 Yamaha 4 450
2005 YAM SX 2 250

Ward, Larry
YEAR BIKE STROKE CC's'
2001 Yamaha 4 250
2002 Yamaha 4 250

Windham, Kevin
YEAR BIKE STROKE CC's'
1999 Honda 2 250
2000 Honda 2 250
2001 Suzuki 2 250
2003 Honda 4 450
2004 Honda SX 4 450
2005 Honda SX 4 450

Tim Ferry was one of the first to make the switch to four-strokes in 2000 riding the Yamaha YZ426F, but only in outdoors. It wasn't until five years later that he would make the switch from two-stroke to four-stoke in Supercross. The sheer power of the four-stroke did great in out-powering the 250 two-stokes outdoors, but the bike was heavy and hard to maneuver indoors.

In 2001, the first rider to win a National on Yamaha's new thumper was not a high-paid factory super star, it was actually journeyman racer Larry Ward. Ward would take the victory at the Red Bud event, while riding for the Moto XXX privateer team.
Anything to add?
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