superfishal Posted September 8, 2019 Share Posted September 8, 2019 I was looking at the swingarm parts diagram of the 2018 mt07 and spotted a new "seal" that isnt on the diagram for the 15-17. It looks like it could be a fix for the chain guide issue. The part is listed as Yamaha SEAL 1 BU2-22358-00-00. It was only 5 bucks so i ordered it to find out. Ill post here when it arrives and figure it out for sure or someone with an 18 could please confirm it for me. 3 Link to comment Share on other sites More sharing options...
geophb Posted September 18, 2019 Share Posted September 18, 2019 (edited) Whats this chain guide issue? I have a 2019 and that "seal" is just a sticker under the chain guide, if i remember correctly. Heres a picture. Edited September 18, 2019 by geophb uploaded pic Link to comment Share on other sites More sharing options...
Bigturbomax Posted November 8, 2019 Share Posted November 8, 2019 Yes that's correct. I ordered that part along with a new chain guide and installed on my 2017. My guide was wearing funny. I don't see how it does anything. I think its to prevent the guide from rubbing off the paint and causing rust. Not sure. Its just a clear plastic sticker. Link to comment Share on other sites More sharing options...
mossrider Posted November 8, 2019 Share Posted November 8, 2019 Just now, Bigturbomax said: Yes that's correct. I ordered that part along with a new chain guide and installed on my 2017. My guide was wearing funny. I don't see how it does anything. I think its to prevent the guide from rubbing off the paint and causing rust. Not sure. Its just a clear plastic sticker. Did you do a 520 chain conversion? If you did that will contribute to the guide wear issues. I go through a couple of stock rubber guides per season. Upgrading your suspension can wreak havoc with the guide too, good thing they're cheap. You can try trimming the center rib flat since that is what causes the wear as it doesn't line up with the 520 correctly. There are also some more durable aftermarket options available now too. 1 Link to comment Share on other sites More sharing options...
Premium Member DewMan Posted November 8, 2019 Premium Member Share Posted November 8, 2019 2 hours ago, mossrider said: There are also some more durable aftermarket options available now too. Any links to those? DewMan Just shut up and ride. Link to comment Share on other sites More sharing options...
mossrider Posted November 8, 2019 Share Posted November 8, 2019 Just now, DewMan said: Any links to those? FZ-07 / MT-07 Delrin Chain Buffer | Robem Engineering Tired of burning through stock chain buffers made of epdm (?) While Im not positive of the material I am sure it fails at an accelerated rate on the track. This lead to making a chain buffer from Delrin to avoid carrying as many in... 1 Link to comment Share on other sites More sharing options...
Bigturbomax Posted November 9, 2019 Share Posted November 9, 2019 4 hours ago, mossrider said: Did you do a 520 chain conversion? If you did that will contribute to the guide wear issues. I go through a couple of stock rubber guides per season. Upgrading your suspension can wreak havoc with the guide too, good thing they're cheap. You can try trimming the center rib flat since that is what causes the wear as it doesn't line up with the 520 correctly. There are also some more durable aftermarket options available now too. Nah, almost 14k and my stock chain is still doing great. Im considering the 520 conversion when my chain/sprockets need replaced. Is it really that much better? Link to comment Share on other sites More sharing options...
mossrider Posted November 9, 2019 Share Posted November 9, 2019 Just now, Bigturbomax said: Nah, almost 14k and my stock chain is still doing great. Im considering the 520 conversion when my chain/sprockets need replaced. Is it really that much better? Nope. Only if weight is a concern. Link to comment Share on other sites More sharing options...
Global Moderator sorkyah Posted November 9, 2019 Global Moderator Share Posted November 9, 2019 Rotating mass was my only concern when doing the conversion Also replaced the wheel bearings and repacked the swingarm/shock bearings when I did ATGATT... ATTATT, two acronyms I live by. Link to comment Share on other sites More sharing options...
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