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about to change sprockets and chain about to change sprockets and chain
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Yamaha Tech Originally the Yamaha XT600 Tech Forum, due to demand it now includes all Yamaha's technical / mechanical / repair / preparation questions.
Photo by George Guille, It's going to be a long 300km... Bolivian Amazon

I haven't been everywhere...
but it's on my list!


Photo by George Guille
It's going to be a long 300km...
Bolivian Amazon



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  #31  
Old 11 Jul 2009
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That wont work, you mean the flat side in? itll crash right into the wall in there..

that 9.5 "space" works as a spacer dont it? and the space will then be too short, the sprocket wont be in line with the chain.
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  #32  
Old 11 Jul 2009
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Heres an illustration..
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  #33  
Old 12 Jul 2009
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If your front sprocket is 15.6mm wide you need the sprocket #577(15.6 mm wide) which is listed for the 97-98 model, not #1577(9.5 mm wide).
I also have a 2001 4pt model & had the same problem recently after ordering new sprockets.
Bob
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  #34  
Old 12 Jul 2009
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Bergspre, my bike is a 2005 TT600RE. I thought all the later model 600’s had the same front sprocket, but Bobmech has corrected that misunderstanding.

Sure, I will check what Wemoto sent me, but I can’t be sure if our bikes use the same front sprocket. My bike is supposed to have the exact same engine as the 1990 – 1995 XT600E. I will post the sprocket partnumber tomorrow.

I would expect Wemoto to be helpful if they made a mistake. They (Wemoto) messed up my order a little, I ordered two rear sprockets among other stuff, but received only one. I informed them of this and they sent me the missing sprocket right away. They obviously did not suspect me of lying to get a free part, and corrected the mistake without delay.

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  #35  
Old 12 Jul 2009
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Here is a pic of my front sprocket. This sprocket sure looks more than 9.5mm wide to me. I am guessing our bikes use the same type of a front sprocket. It will be interesting to see the sprocket Wemoto sent me… I will check it tomorrow.


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  #36  
Old 12 Jul 2009
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I think maybe that illustration pic must be wrong, why is the illustration showing 9.5mm, is that for 1577.9?

My sprocket was a 1577.15

Im going to take pictures tomorrowshowing both the old and the new sprocket.
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  #37  
Old 12 Jul 2009
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Question
This is a picture of the old front sprocket showing
the measuring of the depth, it is 15mm.


Here is a picture of the new front sprocket, a JTF1577.15
It is only 9mm deep though! Strange..


And another one of the new sprocket..
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  #38  
Old 12 Jul 2009
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Hi Bergspre
I have a front sprocket that I got from Dave Lambeth for my TTR600, The part no is JTF577.15
I have a XT600 3AJ engine that also has a JTF577.15 front sprocket.
Your part no is slightly differnt
I also rember some one put a XT600e engine in a TTR and had a problem with front sprocket lineing up I think the out put shaft maybe a differnt length on some XTs to TTRs but only on certian years.
good luck
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  #39  
Old 12 Jul 2009
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Bergspre, the sprocket Wemoto sent me is also a JTF1577.15, the same as you have. And it is the wrong one for my TT600RE, I need the wider one.
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  #40  
Old 12 Jul 2009
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Thank you for investigating
Now we know, I used that inquiry option on the order on wemoto and wrote to them about it, i hope they know which one will fit.
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  #41  
Old 12 Jul 2009
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I browsed jt sprockets catalogue online on all the yamaha xt600 listings. Found theres alot of different bikes listed but theres actually a sprocket called JTF 577.15 and its 15.6mm wide, i think this is the one needed. I hope wemoto just picked the wrong sprocket, i can see that mixups can happen.. 577.15 and 1577.15

btw. the 577.15 is listed for xt600 E,D 1987
JT Sprockets: Catalogue
Last edited by bergspre; 12 Jul 2009 at 18:39. Reason: extra info
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  #42  
Old 13 Jul 2009
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Bergspre, you need a #577 sprocket with the appropriate number of teeth(14, 15, or 16).
I would say the catalogue listing is incorrect, not unusual for pattern/aftermarket parts.
Bob

Yamaha XT 600 E 97-98

Sprocket Front

Chains And Sprockets (sprockets) Section


This picture shows a Sprocket Front for a 97-98 Yamaha XT600 E. Many other Yamaha spare parts listed.
£14.18 plus postage.
null

Open New Yamaha XT 600 E 97-98 Shop Page wemoto © Worlds End Motorcycles 2001-2009

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  #43  
Old 13 Jul 2009
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Sry bobmech I didnt notice your post yesterday, you had the solution already about the 577 not 1577

I think i was too stressed yesterday

I have found the 577 sprocket in a norwegian webshop so if I dont find a nearby store tomorrow where i can pick it up ill order it from the web. Vacation + motorbike trouble = true
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  #44  
Old 13 Jul 2009
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Found a 577 14tooth at a local store,hope its not a big diff from the 15tooth, i wasnt able to follow the speed limit in 5th gear anyway so i guess its good.. maybe have to remove a link from the chain maybe?
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  #45  
Old 13 Jul 2009
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my new sprocket was thinner as well
With my new front sprocket I ordered( which is thinner than the original) came a splined spacer to make up for the lack of width.
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