CLUTCH PLATES



5 replies to this topic
  • gal

Posted May 08, 2002 - 10:54 PM

#1

R THEY MADE OF STEEL?

  • jamracing

Posted May 09, 2002 - 03:44 AM

#2

Nope, they are aluminum, to save weight, and to minimize the flywheel effect. They also contaminate the motor oil more than steel plates, and tend to expand more than steel. Putting quality steel clutch plates will give you more feel, last longer, and add a little more engine grunt. If you cryo treat them, they will also last forever. Moose makes good plates.

  • yz426quad

Posted May 09, 2002 - 11:30 AM

#3

gal,the clutch plates are steel, I just replaced
them along with the fibers.All factory yamaha. :)

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  • freestyle111

Posted May 09, 2002 - 09:37 PM

#4

im sure if you have billets clutch basket you dont still have stock clutch plates.there are most likely steel.

  • Rich_in_Orlando

Posted May 10, 2002 - 07:09 AM

#5

The clutch plates on my '99 WR are steel. (They stick to a magnet.)

  • holeshot

Posted May 10, 2002 - 07:14 AM

#6

Stock plates are steel. Since the 426 (and most other four strokes) share oil between the tranny and motor, the contamination from aluminum plates would not be acceptable.





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