rossco Posted July 21, 2017 Share Posted July 21, 2017 Can anyone tell me the size of socket I need for the front sprocket? EDIT. YAMAHA FZ-07 FRONT SPROCKET NUT IS 30MM, REAR SPROCKET NUT IS 27 MM. Link to comment Share on other sites More sharing options...
Cruizin Posted July 22, 2017 Share Posted July 22, 2017 Can anyone answer this please? If so, ill add it to our tech tip section @guru ? Yamaha MT-10 ForumYamaha Tracer 900 Forum Yamaha Ténéré 700 Forum Link to comment Share on other sites More sharing options...
Premium Member i28 Posted July 22, 2017 Premium Member Share Posted July 22, 2017 https://fz07.org/thread/3751/yamaha-fz-07-torque-specs That should have it Link to comment Share on other sites More sharing options...
Cruizin Posted July 22, 2017 Share Posted July 22, 2017 https://fz07.org/thread/3751/yamaha-fz-07-torque-specs That should have it No, front sprocket nut size hasn't been covered yet. Could one of you please see which socket fits on the front sprocket nut? Yamaha MT-10 ForumYamaha Tracer 900 Forum Yamaha Ténéré 700 Forum Link to comment Share on other sites More sharing options...
peteinpa Posted July 22, 2017 Share Posted July 22, 2017 My standard socket collection has larger sizes than my metric. On the larger nuts (rear axle, countershaft,etc.) I'm always using standard. They fit tightly. I don't remember what size though. Got new red 2015 FZ-07 on 7/22/16! Black 2006 Honda ST1300 53K miles. Link to comment Share on other sites More sharing options...
rick Posted July 22, 2017 Share Posted July 22, 2017 The parts list just calls it a nut, but this is the part number 90179–22018 [HASH]42 here http://www.partzilla.com/parts/search/Yamaha/Motorcycle/2015/FZ07%20-%20FZ07FCGY/TRANSMISSION/parts.html It appears to be the same part on the FZ09 and a bunch of other Yamaha. Maybe a quick question to the FZ9 group will give socket size. According to the service manual, this nut gets staked once torqued to 69 ft-lbs, so it should be replaced if yer changing sprockets. The washer behind that nut is a conical spring washer (sometimes called a Bellville washer) and has a marking on one side that reads "out" - kinda self-explained Link to comment Share on other sites More sharing options...
Premium Member i28 Posted July 22, 2017 Premium Member Share Posted July 22, 2017 Someone mentioned needing a 30mm socket once https://fz07.org/thread/810/talk-chain-sprocket-upgrades?page=5 The fz-09 and fj-09 also seem to have a 30mm sprocket nut Sources: https://fj-09.org/thread/2166/front-sprocket-nut-size http://www.fz09.org/forum#/topics/9252?page=1 My only question is why is the "drive sprocket nut" listed as a size m22 in the service manual? It's the only item torqued to 69ft lbs. Isn't that the same part? Link to comment Share on other sites More sharing options...
rick Posted July 22, 2017 Share Posted July 22, 2017 Someone mentioned needing a 30mm socket once https://fz07.org/thread/810/talk-chain-sprocket-upgrades?page=5 The fz-09 and fj-09 also seem to have a 30mm sprocket nut Sources: https://fj-09.org/thread/2166/front-sprocket-nut-size http://www.fz09.org/forum#/topics/9252?page=1 My only question is why is the "drive sprocket nut" listed as a size m22 in the service manual? It's the only item torqued to 69ft lbs. Isn't that the same part? what page in the manual are you seeing the m22? Looked again in mine and did not see this. My guess is that's the threaded inner diameter (threaded size of the output shaft) , which would make a 30mm socket a decent guess. Link to comment Share on other sites More sharing options...
Premium Member i28 Posted July 22, 2017 Premium Member Share Posted July 22, 2017 what page in the manual are you seeing the m22? Looked again in mine and did not see this. My guess is that's the threaded inner diameter (threaded size of the output shaft) , which would make a 30mm socket a decent guess. In the tightening torque sections, one or the last items is the "drive sprocket nut" (page 2-22 in my manual). Says the thread size is m22 - so your explanation makes sense. Link to comment Share on other sites More sharing options...
markstertt Posted July 22, 2017 Share Posted July 22, 2017 The parts list just calls it a nut, but this is the part number 90179–22018 [HASH]42 here http://www.partzilla.com/parts/search/Yamaha/Motorcycle/2015/FZ07%20-%20FZ07FCGY/TRANSMISSION/parts.html It appears to be the same part on the FZ09 and a bunch of other Yamaha. Maybe a quick question to the FZ9 group will give socket size. According to the service manual, this nut gets staked once torqued to 69 ft-lbs, so it should be replaced if yer changing sprockets. The washer behind that nut is a conical spring washer (sometimes called a Bellville washer) and has a marking on one side that reads "out" - kinda self-explained I wish I could remember the nut size, sorry, but I'd like to add that the nut has a narrow staking flange around it's inner diameter and you can carefully pop the staked section out of the groove in the shaft without ruining the nut. When I retorqued my used nut, it actually lined up with a clean unused section of flange over the shaft groove and if it hadn't I believe there is another groove 180* around the shaft (I think). I didn't see any reason to wait for a new nut or spend the money...just me. yep, looks like 2 staking grooves Link to comment Share on other sites More sharing options...
rick Posted July 23, 2017 Share Posted July 23, 2017 The manual implies 2 tabs be staked at 180 degrees - the drawings points to both and say unstake and restate, but never actually says "one" or "both". Could read it either way. Sounds like the factory is only doing one. as long as that flange is OK, I'd probably reuse as well. Can always use a drop of blue loctite in a pinch. Link to comment Share on other sites More sharing options...
Premium Member hobbs Posted July 23, 2017 Premium Member Share Posted July 23, 2017 Can anyone tell me the size of socket I need for the front sprocket? It's 30 mm. And the rear is 27 mm, just for posterity. Everything went braap. Link to comment Share on other sites More sharing options...
USMCFieldMP Posted July 23, 2017 Share Posted July 23, 2017 It's 30 mm. And the rear is 27 mm, just for posterity. Can confirm. Just changed sprockets and chain. Link to comment Share on other sites More sharing options...
Cruizin Posted July 24, 2017 Share Posted July 24, 2017 Thanks guys and gals! Moved to the "Tech Tips" section. Also put some SEO into this so it gets shared on Google search results for anyone who searches for this. facebook group tech tips do not show up in google search results. Yamaha MT-10 ForumYamaha Tracer 900 Forum Yamaha Ténéré 700 Forum Link to comment Share on other sites More sharing options...
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