rj
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Post by rj on Jun 2, 2019 21:31:19 GMT -7
I did the first oil service and checked the chain slack. A rough measurement on the side stand indicated it was a little over 55mm which was surprising.
I just checked the Yamaha book and it gives two measurements for slack, one on the side stand and the other on a "maintenance stand".
By Maintenance stand, do they mean a regular rear stand or like a dirt bike stand where the swing arm is totally unloaded?
I'm probably overthinking this, but was curious.
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Post by RedAndBlack on Jun 3, 2019 0:38:50 GMT -7
I would interpret it as a stand that unloads the rear swingarm. I don't think there would be much difference in measurements from the bike on the side stand vs the bike on a swing arm spool stand. I could be wrong though.
It's good to measure of course, but just seeing how the chain is should back up your measurement. An overly tight chain will look such and will have little play. Where when it's too loose, it will look like the chain has the potential to jump off the sprocket. If it looks right after your measurement, sleep well at night!
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mario
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Post by mario on Jun 3, 2019 0:49:21 GMT -7
Maintenance stand is a standard paddock stand. There is a difference between on a side stand vs on a paddock stand when measuring, hence the 2 different values they provide.
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Deleted
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Post by Deleted on Jun 15, 2019 10:08:22 GMT -7
Yes OP, shorter range is for loaded rear suspension, like on side stand, or a front chock. The 5mm larger one is when unloaded with any kind of stand, which is the way I do it (with an Abba stand), to also clean and lube the chain. The trick to adjust it right is not to overly push on the chain, but to just push it up and pull it down until slight resistance is felt (yes, you have to do it both ways). Finally, all new chains stretch quite a bit the first few hundred miles, so nothing to worry about. I adjusted mine at 400 miles, and it was quite loose already... but it only took 2 1/6-turns (so 1/3 turn) to get it to the lower spec, so it's very little. Oh, and my rear wheel wasn't perfectly aligned, so did that too first  . Hope this helps. |
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fastback89
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Post by fastback89 on Jun 26, 2019 17:32:41 GMT -7
Mine loosened up at least 3 times before it stopped stretching. I have no tight or loose spots so I'm assuming It's OK. It definitely shifts better with slack set to 25MM when on a Spooled swing arm stand..
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ossapioneer
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Post by ossapioneer on Jul 26, 2019 0:05:19 GMT -7
I would interpret it as a stand that unloads the rear swingarm. I don't think there would be much difference in measurements from the bike on the side stand vs the bike on a swing arm spool stand. I could be wrong though. It's good to measure of course, but just seeing how the chain is should back up your measurement. An overly tight chain will look such and will have little play. Where when it's too loose, it will look like the chain has the potential to jump off the sprocket. If it looks right after your measurement, sleep well at night! bogie posted a link to the MT10 shop manual. From that link, Yamaha specs for chain slack, side stand vs. maintenance stand: 20-30mm slack on the side stand, and 25-35mm slack on a maintenance stand (5mm is about 1/4"). Also, the Yamaha diagram does show chain slack as being the total distance of movement, from being pushed down from the chain's neutral position, to the chain then being pushed up to its max deflection. |
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Deleted
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Post by Deleted on Jul 26, 2019 14:31:08 GMT -7
5mm=1/5", not 1/4 (1"=25.4mm). That difference is due to the sprocket not being perfectly aligned with the swingarm pivot. I also like the chain at the lower end of the specs (25mm on my Abba stand)... BUT if you're going to shoot for that, make sure you're applying VERY LITTLE pressure, or you'd end up with a tight chain. By applying just a bit more pressure than normal, you can easily deflect the chain another 5mm. For that reason, if you're not sure, I'd aim for the middle value (30mm), so the chain doesn't end up tight. Hope this helps. |
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techsniffer
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Post by techsniffer on Jul 27, 2019 11:18:13 GMT -7
Mine loosened up at least 3 times before it stopped stretching. I have no tight or loose spots so I'm assuming It's OK. It definitely shifts better with slack set to 25MM when on a Spooled swing arm stand.. Chains never stop stretching, ever! A new chain will need to be tightened about every week or 2 on average for the first several months but then it slows down to about once a month and so on. I wash my bike about once a week and as a part of that process I put it on the rear stand, wash the bike, spray on chain degreaser, scrub with a chain brush, rinse off, dry manually, apply chain wax, let set for 15-30 min, then I measure chain slack and if it needs to be tightened I do so then. |
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7kings
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Post by 7kings on Jul 28, 2019 7:53:58 GMT -7
When I adjusted my chain at my 600 mile service, it was pretty close to the 55mm that you report. One thing I noted afterwards was that the tick marks on the swingarm were not reliable for aligning the chain. I adjusted it by turning each adjustment screw the same number of rotations and then checked the chain alignment with the Motion Pro alignment tool (brilliant $11 investment, btw). After this, I looked at the markings and they disagreed by probably 1-2mm. If I had relied on them, I would have been chasing the chain alignment around.
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k1kingdom
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Post by k1kingdom on Aug 3, 2019 0:21:29 GMT -7
I recently adjusted my chain a few days ago. I used the markings on the swingarm to get the alignment straight. Are those markings accurate or not? Because after i adjusted my chain and matched the markings on both sides of the swing arm. I went for a ride and noticed a wierd sound coming from left side rear. Faint noise but noticeable. It sounded kinda of like a tire rolling thats not balanced or tru. And it is heard quite noticeably when coasting clutch in in first second gear. Ive been trying to figure out whats going. Will your motorcycle make this noise if the rear is not aligned properly? When im up to speed its fine no issues. And ive also noticed when shifting instead of a nice pop on the shifter it feels a little bit stiff.
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Deleted
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Post by Deleted on Aug 3, 2019 10:44:38 GMT -7
To answer your question on the swingarm marks, I (and many others here) don't trust them automatically, but on my bike, they're spot on after I checked both chain alignment, and rear wheel alignment using the string method. The problem is they lack of precise graduations, with marks every 1/4" or so, therefore not very accurate to use alone anyway. What you need to do is invest in a chain alignment tool, which are a little over 10 bucks (I bought a MotionPro). That will tell you if things are right. As a side comment, a perfectly aligned chain doesn't mean the rear axle is perfectly aligned; at least on my bike it wasn't. The difference is very minor, so not an issue, but I decided to perfectly align the rear axle (string method), which coincided with the swingarm marks. The chain has an ultra minor misalignment, but it has no effect on anything IMO. To give you an idea, at the rear sprocket, the chain alignment tool is in the middle of a roller. When projected to the front sprocket, it's probably 3mm off, which is the amount of sideways play the chain has on the sprockets, so zero extra wear IMO.
Bottom line is, you can just adjust the chain perfectly, and be done with it. I spent the time to check rear wheel alignment just to be sure, but not necessary. Oh, and once you have the chain (or rear wheel) aligned, all you have to do is move the chain adjusters by the same amount on both sides and no need to recheck anything until you need to remove the rear wheel for tire replacement. Hope this helps. Good luck.
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7kings
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Post by 7kings on Aug 3, 2019 13:48:25 GMT -7
I don't understand how you can have a properly aligned chain and a misaligned axle. In fact, Motorcycle Magazine has an MC Garage wheel alignment video and one of the things Ari Henning specifically calls out is that if your front and rear sprockets are aligned, your rear wheel is aligned. He was actually recommending using the MotionPro chain alignment tool for this.
Can someone enlighten me?
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Deleted
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Post by Deleted on Aug 4, 2019 11:27:22 GMT -7
I don't understand how you can have a properly aligned chain and a misaligned axle. You missed the 'perfectly' part . As I surmised, there must be tolerances where if within them, the axle is deemed aligned when the chain is. Plus there must be an additional tolerance for chain alignment. I'm sure my bike is easily within them, whatever they are. For practical purposes, you CANNOT have perfection overall on any mechanical system; that's why tolerances exist. Anyway, I went with 'perfect' axle alignment, but to be honest, I won't bother again, now that I verified how close they are. Aligning the chain is good enough to call the axle aligned. Having said that, I wouldn't want my chain misaligned the 'wrong' way (in my case, meaning axle rotated to the right), meaning the chain would be slightly misaligned, and the axle even more, rather than the chain slightly misaligned the other way, and the axle perfectly aligned. Hope that made sense. So bottom line is this: Just shoot for perfect chain alignment, and everything will be fine . Hope this helps. |
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7kings
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Post by 7kings on Aug 4, 2019 12:51:42 GMT -7
My post wasn't actually aimed at you. I've seen many posts where people express that aligning the axle is independent of aligning the chain, and that you can't base the assumption of an aligned axle on an aligned chain. The only way I can conceive of a chain being aligned but the axle being misaligned is if the engine itself is clocked in the chassis (and if that's the case, I think you probably have bigger problems, especially in the case of the engine being a stress member of the chassis). If the sprockets and chain are aligned, shouldn't that ensure that the axle is aligned? If not, in what situation (on an otherwise healthy bike) would you find this sort of variance?
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Deleted
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Post by Deleted on Aug 4, 2019 15:20:08 GMT -7
Simple: the chain and sprockets are not PERFECTLY aligned... but close enough . |
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k1kingdom
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Post by k1kingdom on Aug 7, 2019 22:02:52 GMT -7
Just recently adjusted my chain. Now im hearing this wierd rhythmic noise coming from i think the lower left side of my motorcycle maybe around the chain and sprocket area. Most noticeable with the clutch pulled in coasting and you can really hear it when i coast with the engine shut off. Checked the chain and its loose on one side and tight in another area. 17000 miles on it. Dont know whats going on or why it making that sound. Im a pretty conservative rider speed burst evry now and then no wheelies burnouts oil is changed regularly mostly commuting on this bike. I heard yamaha makes good engines for most of their bikes hope their not wrong. Im going to get a new chain and sprocket hopefully that works. Is their anybody out there that may know what this is or may have had this issue. Just need to get some advise to head in the right direction. Oh and the bike does evrything else fine purrs like a kitten shifts like a champ. Just that rythmic vibration when clutch is pulled in. Thanks for listening.
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mtate
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Post by mtate on Aug 8, 2019 4:31:54 GMT -7
Just recently adjusted my chain. Now im hearing this wierd rhythmic noise coming from i think the lower left side of my motorcycle maybe around the chain and sprocket area. Most noticeable with the clutch pulled in coasting and you can really hear it when i coast with the engine shut off. Checked the chain and its loose on one side and tight in another area. 17000 miles on it. Dont know whats going on or why it making that sound. Im a pretty conservative rider speed burst evry now and then no wheelies burnouts oil is changed regularly mostly commuting on this bike. I heard yamaha makes good engines for most of their bikes hope their not wrong. Im going to get a new chain and sprocket hopefully that works. Is their anybody out there that may know what this is or may have had this issue. Just need to get some advise to head in the right direction. Oh and the bike does evrything else fine purrs like a kitten shifts like a champ. Just that rythmic vibration when clutch is pulled in. Thanks for listening. It could be something as simple as some grime built up behind the plastic front sprocket cover. It gets really nasty back there and can hold a lot of little rocks and stuff. Pop that off and give it a good clean. |
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k1kingdom
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New FZ10 owner for the last two weeks. Close to 600 miles and i am really enjoying this bike!
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Post by k1kingdom on Aug 8, 2019 9:18:27 GMT -7
This weekend im gonna do that and get all that stuff out of there and see what happens. Trying to avoid having to take it to the shop if its something minor that i can do myself. Thanks for the advise i appreciate it very much.
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Deleted
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Post by Deleted on Aug 8, 2019 10:53:31 GMT -7
At 17K miles, you might need a new chain. Check every link (with the rear on a stand) to make sure the chain is not tight anywhere. Also invest in a cheap chain alignment tool ($12 for a MotionPro), to make sure it's properly aligned. Good luck.
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. Hope this helps.
