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Chain slap

sunndog

By sunndog
in Yamaha Tenere 700 General Discussion

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sunndog Community Regular

sunndog

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Right so I've heard about chain slap and I've googled around but nobody seems to be asking the exact question so...do y'all get a big slap from dropping off a kerb or just some small potholes at speed? 

 

I'm thinking it's just the way it is but it does seem a little over the top

Chain tension is fine 

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sunndog Community Regular

sunndog

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Dunno it's quite a big obnoxious chattery slap.

I don't want the chain any tighter

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random1781 Experienced

random1781

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I feel like I get a lot also, and similarly don't want to tighten it too much. 16k miles and no issues, chain is in decent shape for its life.

advgoats.com

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Redneckj Proficient

Redneckj

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The slap noise goes mostly away with a chain guide.  I used the factory Yamaha part. 
 

Edited by Redneckj
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sunndog Community Regular

sunndog

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I have a chain guide, an aliexpress one but should do the same job 

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  • 3 weeks later...
sunndog Community Regular

sunndog

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Aha, so had a 60 mile or so ride (on road) with a good bit of weight on the back.

Was on road as I say but slap seemed to be worse.

I'm 100kg (220lb) without gear so it stands to reason that a heavier rear spring would help right? 

 

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ninot7 Collaborator

ninot7

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definitely, chain tension spec from Yam is a bit too tight, even the upper limit of their normal. I run 46-48mm on my WR and been happy with it on and off road (with chain guide). Yes you hear it a bit, but then again better a bit looser than tight. 

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sunndog Community Regular

sunndog

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Aye chain spec is as tight as I want it and is at  least as tight as I've ever run a chain 

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  • 1 month later...
sunndog Community Regular

sunndog

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Finally got round  to fitting a heavier spring.

Went for a 95nm k-tech from rugged roads uk. (Great service)

Cos I'm a big lad with a heavy right hand and sometimes carry a bit of cargo

 

Ragged it Round the farm into town and up a rocky lane....zero chain slap 😁

Plus everything just feels nicer more poised and harder edged, like it! 

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sunndog Community Regular

sunndog

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2 hours ago, Kiwi said:

Good to hear

 

I weight the same as you,I was interested in learning what spring rate would be best.

 

I haven't even set the sag yet tbh but it felt something like right.

Looking around 90nm might have done me but I do load it up at times so went higher.

 

It has raised the bike a little, dunno if it will settle down any but worth noting if that's a deal breaker 

Edited by sunndog
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r1superstar Community Regular

r1superstar

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Chain slap is ANNOYING on the T7.  Had it Tight, adjusted it to Yamaha spec and I have a chain guide.  It feels like something is just loose.  What's the fix?

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Kiwi Collaborator

Kiwi

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I just got the bike back from repair at the yamaha dealers.the chain is so tight it's talking when I push the bike.

 

Gonna slacken that off before I ride it.

 

The bike is just a little bit high for me but I have gotten used to it.

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sunndog Community Regular

sunndog

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11 hours ago, r1superstar said:

Chain slap is ANNOYING on the T7.  Had it Tight, adjusted it to Yamaha spec and I have a chain guide.  It feels like something is just loose.  What's the fix?

 

Stiffer rear was the fix for me 

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DanDoesStunts Enthusiast

DanDoesStunts

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Man see so many people complain about chain slap. Haven’t heard the chain yet, I’m too focused on the dirt!

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sunndog Community Regular

sunndog

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2 hours ago, DanDoesStunts said:

Man see so many people complain about chain slap. Haven’t heard the chain yet, I’m too focused on the dirt!

 

Mine slapped on the road! A lot!

 

Impossible to ignore, its like a different bike now I feel like I can flog it around

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r1superstar Community Regular

r1superstar

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On 8/20/2023 at 4:26 AM, sunndog said:

 

Stiffer rear was the fix for me 

 

Stiffer rear spring?

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r1superstar Community Regular

r1superstar

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On 8/20/2023 at 4:28 AM, DanDoesStunts said:

Man see so many people complain about chain slap. Haven’t heard the chain yet, I’m too focused on the dirt!

 

Good for you!  However, it was hard to not focus on it when I was on the dirt for over one thousand miles.  It's annoying.  I felt like something was loose or broken...

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Hollybrook Mentor

Hollybrook

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3 hours ago, r1superstar said:

 

Stiffer rear spring?

I found that I got a lot of chain slap when the rear suspension bottomed out.  Now that I have a much better rear shock, I rarely hear it.

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r1superstar Community Regular

r1superstar

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21 hours ago, Hollybrook said:

I found that I got a lot of chain slap when the rear suspension bottomed out.  Now that I have a much better rear shock, I rarely hear it.

 

Interesting...Thanks for your input. 👍

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DanDoesStunts Enthusiast

DanDoesStunts

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On 8/20/2023 at 10:38 PM, sunndog said:

 

Mine slapped on the road! A lot!

 

Impossible to ignore, its like a different bike now I feel like I can flog it around


I wonder what I’m doing wrong/right.

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sunndog Community Regular

sunndog

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1 hour ago, DanDoesStunts said:


I wonder what I’m doing wrong/right.

 

Couldn't say buddy. What do you weigh?

Maybe there's a discrepancy in spring rates?

 

Honestly mine sounded like it was jumping the sprocket on even slightly rough bits of road at speed 

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DanDoesStunts Enthusiast

DanDoesStunts

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11 hours ago, sunndog said:

 

Couldn't say buddy. What do you weigh?

Maybe there's a discrepancy in spring rates?

 

Honestly mine sounded like it was jumping the sprocket on even slightly rough bits of road at speed 

I’m 102kg.

 

do you have a chain guard?

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sunndog Community Regular

sunndog

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Yep chain guard fitted. I'm leaning towards a variance in factory spring  rates

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