199 1TWO STROKE

CATALOG

1991 ATK TWO STROKE 250MXE N G I N E S i n g l e c y l i n d e r , a i r c o o l e d

rotary valve2 5 0 D I S P L A C E M E N T 2 4 4 c c2 5 0 B O R E A N D S T R O K E 7 2 m m x 6 1 m m250 CARBURETION TMX 38mm MikuniF U E L C A P A C I T Y 2 . 4 g a l ( 9 . 0 L )L U B R I C A T I O N P r e m i xF R A M E 4 1 3 0 n i c k e l p l a t e d c h r o m o l yG E A R I N G , F R O N T / R E A R 1 5 / 5 0I G N I T I O N C D IS I L E N C E R Y e sW H E E L B A S E 5 7 i n c h e s ( 1 4 4 8 m )GROUND CLEARANCE 14 inches (356m)S E A T H E I G H T 3 7 i n c h e s ( 9 1 4 m )2 5 0 D R Y W E I G H T 2 0 5 l b sF R O N T T I R E 3 . 0 0 X 2 1 P i r e l l iR E A R T I R E 4 . 5 0 X 1 8 P i r e l l iFRONT SUSPENSION White Power 4054.

11.8 inches, adj cartridge forks standardREAR SUSPENSION White Power piggyback

shock, adjustable compression,rebound and preload

1991 ATK TWO STROKE250 CROSS COUNTRYENGINE Single cy l inder, a i r cooled rotary valve2 5 0 D I S P L A C E M E N T 2 4 4 c c2 5 0 B O R E A N D S T R O K E 7 2 m m x 6 1 m m2 5 0 C A R B U R E T I O N T M X 3 8 m m M i k u n iF U E L C A P A C I T Y 3 . 7 g a l ( 1 3 . 9 L )L U B R I C A T I O N P r e m i xF R A M E 4 1 3 0 n i c k e l p l a t e d c h r o m o l yG E A R I N G , F R O N T / R E A R 1 5 / 4 4I G N I T I O N C D IS I L E N C E R A D D O N S PA R K A R R E S T O R Ye sW H E E L B A S E 5 7 i n c h e s ( 1 4 4 8 m )G R O U N D C L E A R A N C E 1 4 i n c h e s ( 3 5 6 m )S E A T H E I G H T 3 7 i n c h e s ( 9 1 4 m )2 5 0 D R Y W E I G H T 2 0 7 l b sF R O N T T I R E 3 . 0 0 X 2 1 P i r e l l iR E A R T I R E 4 . 5 0 X 1 8 P i r e l l iFRONT SUSPENSION White Power 4054. 11.8 inches,

adjustable cartridge forks optionalR E A R S U S P E N S I O N W h i t e P o w e r p i g g y b a c k

shock, adjustable compression, rebound and preload

1991 ATK TWO STROKE 406MXENGINE Single cylinder, air cooled, piston port case reed valve4 0 6 D I S P L A C E M E N T 3 9 9 c c4 0 6 B O R E A N D S T R O K E 8 4 m m x 7 2 m m4 0 6 C A R B U R E T I O N T M X 3 8 m m M i k u n iF U E L C A P A C I T Y 2 . 4 g a l ( 9 . 0 L )L U B R I C A T I O N P r e m i xF R A M E 4 1 3 0 n i c k e l p l a t e d c h r o m o l yG E A R I N G , F R O N T / R E A R 1 5 / 5 0I G N I T I O N C D IS I L E N C E R Y e sW H E E L B A S E 5 7 i n c h e s ( 1 4 4 8 m )G R O U N D C L E A R A N C E 1 4 i n c h e s ( 3 5 6 m )S E A T H E I G H T 3 7 i n c h e s ( 9 1 4 m )4 0 6 D R Y W E I G H T 2 1 3 l b sF R O N T T I R E 3 . 0 0 X 2 1 P i r e l l iR E A R T I R E 4 . 5 0 X 1 8 P i r e l l iFRONT SUSPENSION White Power 4054,11.8 inches,

adjustable cartridge forks standardR E A R S U S P E N S I O N W h i t e P o w e r p i g g y b a c k

shock, adjustable compression, rebound and preload

1991 ATK TWO STROKE406 CROSS COUNTRY

E N G I N E S i n g l e c y l i n d e r , a i r c o o l e d .piston port case reed valve

4 0 6 D I S P L A C E M E N T 3 9 9 c c406 BORE AND STROKE 84mm x 72mm406 CARBURETION TMX 38mm Mikun iF U E L C A P A C I T Y 3 . 7 g a l ( 1 3 . 9 L )L U B R I C A T I O N P r e m i xF R A M E 4 1 3 0 n i c k e l p l a t e d c h r o m o l yG E A R I N G , F R O N T / R E A R 1 5 / 4 4I G N I T I O N C D ISILENCER ADD ON SPARK ARRESTOR YesW H E E L B A S E 5 7 i n c h e s ( 1 4 4 8 m )GROUND CLEARANCE 14 inches (356m)S E A T H E I G H T 3 7 i n c h e s ( 9 1 4 m )4 0 6 D R Y W E I G H T 2 1 8 l b sF R O N T T I R E 3 . 0 0 X 2 1 P i r e l l iR E A R T I R E 4 . 5 0 X 1 8 P i r e l l iFRONT SUSPENSION White Power 4054.

11.8 inches, adj cartridge forks optionalREAR SUSPENSION White Power piggyback

shock, adjustable compression,rebound and preload

IFEATURES

..."Stays laser straight in the most gruesome whoop sections"......"The best White Power units we've ever hit"...

..."Around 10hp more than the stock Rotax 406 motor"..."The ATK can destroy berms like a full-on 500, but it's easier to ride and maintain"...

Dirt Bike Magazine-Nov. 1990 issue

y flkM O T O R C Y C L E S

5430 UNION PACIFIC AVENUE • CITY OF COMMERCE, CALIFORNIA 90022(213) 722-8880 • FAX (213) 722-4795