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Rust in top chain case gear?

DTJ

Extreme
Joined
Mar 31, 2016
Messages
104
Age
50
Location
Brainerd, MN
Country
USA
Snowmobile
2014 Yamaha Viper XTX, hurricane 190 kit
2013 Yamaha Apex XTX
2017 Yamaha Sidewinder BTX
20220614_221619(1).jpg
20220614_221709.jpg


Anybody received this gear with what appears to be rust on bushing? This is the second time this has happened that this new gear has shown up looking like this. I've attached pics of a new one with and without the rust. Just wondering if anyone has tried running one of these with the rust. It measures with a caliper as if it's new.
 

The new bushing has a red colored coating on it instead of grey.
 
Great, I'll put it in then. Thanks.
 
Also just noticed the gear in the top phot looks sintered. I wouldn't run that one myself. They break!
 
Yeah, it's a bad pic. It's not sintered. The reason I ordered this gear is because I checked the one on the new to me Sidewinder and it's sintered. Thanks to the discussion on this forum. I also noticed, it seems the sintered gear really contaminates the oil.
 


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