NiteRyder Posted March 10, 2019 Share Posted March 10, 2019 During a short ride yesterday morning I noticed the throttle was slightly ever so off. It didn't feel as smooth and wouldn't snap back as quick as it normally does. Upon removing the throttle tube this is what i found: Not sure why Yamaha decided not to powder-coat the whole handlebar. Bike has never seen rain so this rust is just from me washing the bike. The plus side is I've been eyeballing the Renthal Ultralow handlebars to improve my riding position from being so vertical. A little elbow grease, sandpaper, and WD40 did the trick to clean this mess up until new handlebar is installed. Be safe guys, sticky/rough throttles are never a good thing in this industry. Link to comment Share on other sites More sharing options...
Global Moderator sorkyah Posted March 10, 2019 Global Moderator Share Posted March 10, 2019 This shouldn't have happened The whole bar is powder coated Wonder if something like sand/salt got under there ATGATT... ATTATT, two acronyms I live by. Link to comment Share on other sites More sharing options...
ElGonzales Posted March 10, 2019 Share Posted March 10, 2019 ?? The whole area there has to be covered with grease. This is part of the standard maintenance. Looks like someone forgot this step Link to comment Share on other sites More sharing options...
Global Moderator sorkyah Posted March 10, 2019 Global Moderator Share Posted March 10, 2019 47 minutes ago, ElGonzales said: ?? The whole area there has to be covered with grease. This is part of the standard maintenance. Looks like someone forgot this step There shouldn't be grease The tube is nylon and is the bearing material Grease traps dirt and the buildup could cause the tube to stick ATGATT... ATTATT, two acronyms I live by. Link to comment Share on other sites More sharing options...
ElGonzales Posted March 10, 2019 Share Posted March 10, 2019 6 minutes ago, sorkyah said: There shouldn't be grease The tube is nylon and is the bearing material Grease traps dirt and the buildup could cause the tube to stick Interesting, my handlebar had a thin film of light grease there when I changed it and not a single bit of rust. Thought this was normal like at my usual vintage bikes. But it's a second hand bike, you never now what happened to them. I used grease again, throttle grip moves very smooth. Link to comment Share on other sites More sharing options...
NiteRyder Posted March 10, 2019 Author Share Posted March 10, 2019 2 hours ago, sorkyah said: This shouldn't have happened The whole bar is powder coated Wonder if something like sand/salt got under there Your right it shouldn't have happen. Both sides of handlebar where the grip/throttle tube sit are not powder-coated. Here is the left side of handlebar: 2 hours ago, ElGonzales said: ?? The whole area there has to be covered with grease. This is part of the standard maintenance. Looks like someone forgot this step I never apply grease under throttle tube due to the reason mentioned by @sorkyah. The only spot I add a little grease is where the end of throttle cable rides on cam of throttle tube. It would be interesting to know if any other 18' MT07's, or previous years with black handlebars, look like this. Link to comment Share on other sites More sharing options...
NiteRyder Posted March 10, 2019 Author Share Posted March 10, 2019 22 minutes ago, ElGonzales said: Interesting, my handlebar had a thin film of light grease there when I changed it and not a single bit of rust. Thought this was normal like at my usual vintage bikes. But it's a second hand bike, you never now what happened to them. I used grease again, throttle grip moves very smooth. Just curious if your handlebar is powder-coated black end to end? Link to comment Share on other sites More sharing options...
ElGonzales Posted March 10, 2019 Share Posted March 10, 2019 51 minutes ago, NiteRyder said: Just curious if your handlebar is powder-coated black end to end? No, its grey with shiny blank metal beneath the throttle tube area. Looks like this: (pic of a used one, yamaha part no. 1WS-26111-00) This is my own, MT-07 from the end of 2014. : You are right, using a nylon tube on dry metal makes sense (at long as it isn't oxidating like crazy). I asked google and educated myself with 30 pages of pro/contra grease discussions in other forums. Link to comment Share on other sites More sharing options...
farhanali89 Posted March 15, 2019 Share Posted March 15, 2019 I recently opted to fit oem bars back to my MT as the previous owner fitted renthals but i preferred the width of the stock bars. I sprayed clinging lithium grease on this area. This is not a thick grease but came in a spray version which is clear. I would periodically use this as it wont attract dirt as it applied as a thin film unlike copper/aluminium grease. Link to comment Share on other sites More sharing options...
Beemer Posted March 16, 2019 Share Posted March 16, 2019 I would sand that rust off (or Naval Jelly) and spray that area with Rust-Oleum, then some WD 40 "SPECIALIST." over top of that. WD-40 300059 Specialist 10 oz. Dirt & Dust Resistant Dry Lube PTFE Spray WWW.WEBSTAURANTSTORE.COM Shop WD-40 300059 Specialist 10 oz. Dirt & Dust Resistant Dry Lube PTFE Spray. In stock at a low price and ready to ship same... Beemer Link to comment Share on other sites More sharing options...
NiteRyder Posted March 17, 2019 Author Share Posted March 17, 2019 On 3/16/2019 at 10:26 AM, Beemer said: I would sand that rust off (or Naval Jelly) and spray that area with Rust-Oleum, then some WD 40 "SPECIALIST." over top of that. WD-40 300059 Specialist 10 oz. Dirt & Dust Resistant Dry Lube PTFE Spray WWW.WEBSTAURANTSTORE.COM Shop WD-40 300059 Specialist 10 oz. Dirt & Dust Resistant Dry Lube PTFE Spray. In stock at a low price and ready to ship same... This is exactly what I did until my new Renthal bar comes in. Link to comment Share on other sites More sharing options...
Beemer Posted March 18, 2019 Share Posted March 18, 2019 9 hours ago, NiteRyder said: This is exactly what I did until my new Renthal bar comes in. Is it working OK so far? Beemer Link to comment Share on other sites More sharing options...
NiteRyder Posted March 18, 2019 Author Share Posted March 18, 2019 So far so good. I'm still quite surprised by the amount of rust I had under that tube but i'm glad I caught it in time. Link to comment Share on other sites More sharing options...
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