RX Secondary Sheave Warning!

[Bob Miller]

Just a heads up! I found the (SKU: 8ER-17688-00-00.SHOE, RAMP) on my secondary sheave (There are three of them) worn with almost 12 K miles on sled.
One of them was beheaded, another was only half there, and the third was worn but almost complete! I caught it just in time!
From my experience I would recommend changing these at 10K miles to avoid downtime and any further expensive damage!

 

[rxwarrior]

For top performance these need to be replaced more frequently than 10,000 mile intervals. For no more than these cost it is silly to not replace them as soon as the raised (radiused) surface is worn flat half way across.

 

[Bob Miller]

For top performance these need to be replace more frequently than 10,000 mile intervals. For no more than these cost it is silly to not replace them as soon as the raised (radiused) surface is worn flat half way across.

Sounds good to me

 

[yamadog1]

sec.

that's why yamaha should put rollers on them, but you still need to change rollers ever so often to.

 

[Silver]

Be glad only the plastic ramp was wore down as mine broke the shoulder off that holds the ramp in place.At $10 each for no more then you get I would not call it all that cheap. Although I replaced mine 3 times in 12,000 miles and then put on a roller.The roller works very well.

 

[Bob Miller]

Be glad only the plastic ramp was wore down as mine broke the shoulder off that holds the ramp in place.At $10 each for no more then you get I would not call it all that cheap. Although I replaced mine 3 times in 12,000 miles and then put on a roller.The roller works very well.

Is there a Roller that can be fitted to the stock sheave?

 

[rxwarrior]

Replaced 3 times in 12,000 miles figures out to .0075 cents per mile of riding. In my book that is pretty cheap. We actually replace them as soon as we start to see a flat spot on them, but we are pretty competitive and don't want anything to hinder top performance.