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Discussion Starter · #1 ·
just got done riding my bike and i noticed the sprockets/chain making some noise, like a whining noise. its really loud on decelleration and not so noticable on acceleration. maybe cause the exhaust is so loud? i looked at the rear of the bike and noticed the sprocket hub has a lip on it. shouldnt the lip be tucked into the carrier? mine is hanging out about 1/8". maybe less. i dont remember what it looked like before. i have a lonestar +2 swinger with lonestar carrier and g force axle. i feel like the lip is what seals the carrier but i dont want to beat on it with a hammer until im certain. the axle nut is torqued to 75 ft/lbs so i know the axle nut isnt loose. i really just need to know if the lip should be inside the carrier. any help would be appreciated as im trying to get everything together for a ride saturday. probably the last ride ill go on this year but im not going to change the oil until i get this issue lined out.
thanks in advance for the help:D
 

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just got done riding my bike and i noticed the sprockets/chain making some noise, like a whining noise. its really loud on decelleration and not so noticable on acceleration. maybe cause the exhaust is so loud? i looked at the rear of the bike and noticed the sprocket hub has a lip on it. shouldnt the lip be tucked into the carrier? mine is hanging out about 1/8". maybe less. i dont remember what it looked like before. i have a lonestar +2 swinger with lonestar carrier and g force axle. i feel like the lip is what seals the carrier but i dont want to beat on it with a hammer until im certain. the axle nut is torqued to 75 ft/lbs so i know the axle nut isnt loose. i really just need to know if the lip should be inside the carrier. any help would be appreciated as im trying to get everything together for a ride saturday. probably the last ride ill go on this year but im not going to change the oil until i get this issue lined out.
thanks in advance for the help:D
I'm not sure about the lip on the hub, or if your 660 is a roller chain... But mine is the same way, whining noise on decel and little-nothin on accel...
 

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When was the last time you lubed your chain?
 

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just got done riding my bike and i noticed the sprockets/chain making some noise, like a whining noise. its really loud on decelleration and not so noticable on acceleration. maybe cause the exhaust is so loud? i looked at the rear of the bike and noticed the sprocket hub has a lip on it. shouldnt the lip be tucked into the carrier? mine is hanging out about 1/8". maybe less. i dont remember what it looked like before. i have a lonestar +2 swinger with lonestar carrier and g force axle. i feel like the lip is what seals the carrier but i dont want to beat on it with a hammer until im certain. the axle nut is torqued to 75 ft/lbs so i know the axle nut isnt loose. i really just need to know if the lip should be inside the carrier. any help would be appreciated as im trying to get everything together for a ride saturday. probably the last ride ill go on this year but im not going to change the oil until i get this issue lined out.
thanks in advance for the help:D
Retorque the axle nut...................
 

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Discussion Starter · #5 ·
I'm not sure about the lip on the hub, or if your 660 is a roller chain... But mine is the same way, whining noise on decel and little-nothin on accel...
Not sure what you mean by roller chain? I have a chain roller on the frame and a tm design chain guide on the swinger...
When was the last time you lubed your chain?
Never... this is the 2nd ride for the chain. I guess it wouldn't hurt to throw some klotz on it. Thanks man.
Retorque the axle nut...................
What do you think it should be torqued to? I torqued it to 75 because I think I thought I remembered reading that's what it was suppose to be? Probably wrong.

Anyone have any idea on the sprocket hub lip?
Thanks for the help everyone.
 

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Like Willy said, tighten your axle bolt, I don't know the exact torque but both the rear Brake rotor hub and the rear sprocket hub have a machined surface that enters the carrier and rides against a seal keeping water out of the carrier. If you're rear sprocket hub is out of the carrier then the axle isn't pulled tight with the axle nut. The axle nut puts pressure on the Brake rotor hub which in turn pulls the rear sprocket hub toward and into the carrier. I'm surprised the chain is still on the sprocket. Good luck.
 

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Did you replace the axle bearings and seals at anytime?

If you did, then you may have the seals on the wrong side.

The inner diameter of the seals are 2 different sizes. If I remember correctly, the seal on the sprocket side has a larger inner diameter than the brake hub side.

I always test fit the seals before installation, by sliding them on the hubs first. They should slide on by hand with minimal effort. If you have to force it on, then you have the wrong side.

The axle nut tightening procedure is on page 4-11 in the Shop Manual that you can download in the 660 Maintenance section.
 

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Not sure what you mean by roller chain? I have a chain roller on the frame and a tm design chain guide on the swinger...


Never... this is the 2nd ride for the chain. I guess it wouldn't hurt to throw some klotz on it. Thanks man.

What do you think it should be torqued to? I torqued it to 75 because I think I thought I remembered reading that's what it was suppose to be? Probably wrong.

Anyone have any idea on the sprocket hub lip?
Thanks for the help everyone.
It probably loosened up, Ive seen it on my own bikes, I had to loctite the two lock nuts........
 

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Discussion Starter · #9 ·
Like Willy said, tighten your axle bolt, I don't know the exact torque but both the rear Brake rotor hub and the rear sprocket hub have a machined surface that enters the carrier and rides against a seal keeping water out of the carrier. If you're rear sprocket hub is out of the carrier then the axle isn't pulled tight with the axle nut. The axle nut puts pressure on the Brake rotor hub which in turn pulls the rear sprocket hub toward and into the carrier. I'm surprised the chain is still on the sprocket. Good luck.
Last night I got the axle nut as tight as I could with a cheater bar. The sprocket hub still didn't pull into the carrier. Thanks for answering my question on the lip. I really apprecite it and thanks for helping.
Did you replace the axle bearings and seals at anytime?

If you did, then you may have the seals on the wrong side.

The inner diameter of the seals are 2 different sizes. If I remember correctly, the seal on the sprocket side has a larger inner diameter than the brake hub side.

I always test fit the seals before installation, by sliding them on the hubs first. They should slide on by hand with minimal effort. If you have to force it on, then you have the wrong side.

The axle nut tightening procedure is on page 4-11 in the Shop Manual that you can download in the 660 Maintenance section.
I bought the swinger used. The guy said he replaced the carrier bearings before he shipped it. I took the axle and everything out last night to take a look at the seals. The seal on the sprocket side was out flush with the carrier and the brake hub side seal was inside the carrier. It was pushed up to the sleave that the axle slides into. I assumed that was my problem to I went back to the sprocket side seal and tried to beat it into the carrier more. I got it in 1/16" maybe but the sprocket hub still won't slide into it. So I guess he put the seals on the wrong sides. So know that I know what the problem is I wonder if I can buy just the seals or if I'll have to buy a bearing kit? Do these seals have to be pressed in with an actual press of can I beat them in with a socket?
Chimpazoid thanks for the help man. I didn't know that about the seals. I appreciate the info you posted.
 

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You can purchase just the two outer seals. make sure the bearings are pressed in all the way then the seal should tap in easily with a block of wood and hammer. good luck
 

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Chimpazoid thanks for the help man. I didn't know that about the seals. I appreciate the info you posted.
Not a problem. :thumbsup:

Here are the factory part numbers for the axle seals.

93102-42260-00 Rotor Side

93102-43341-00 Sprocket Side

You can see there are 2 different part numbers because the inner diameters are not the same.

Just tap them in evenly with a flat faced hammer ( not a framing hammer with the rough face) until they are flush with the hub.
 

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Discussion Starter · #12 ·
You can purchase just the two outer seals. make sure the bearings are pressed in all the way then the seal should tap in easily with a block of wood and hammer. good luck
so the factory bearing and seals will fit into an after market carrier? that should be my last dumb question :lol: i apologize for all the ignorance
 

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Discussion Starter · #13 ·
Not a problem. :thumbsup:

Here are the factory part numbers for the axle seals.

93102-42260-00 Rotor Side

93102-43341-00 Sprocket Side

You can see there are 2 different part numbers because the inner diameters are not the same.

Just tap them in evenly with a flat faced hammer ( not a framing hammer with the rough face) until they are flush with the hub.
thanks for the part numbers man. you didnt have to go to all that trouble but i do appreciate it. should they be flush with the outside of the carrier or butted up aganist the tube that the axle slides into? that should be my 2nd last dumb question :lol: thanks again for all the help
 

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so the factory bearing and seals will fit into an after market carrier? that should be my last dumb question :lol: i apologize for all the ignorance
Yes, My aftermarket carrier is made by ModQuad and I'm sure the factory Yamaha seals and bearings pressed right in. I might note that the aftermarket Carrier is a twin-row or double bearings on each side carrier...but what I discovered was that the axle is cut in a way that it only rides on one of the two bearings that are installed so theoretically you always have a spare set of bearings...just switch them when they go out :D
 

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Discussion Starter · #15 ·
i took my swingarm off to mess with the seals. if i was smart i would have taken the carrier out of the swingarm :banghead: but anyway, i got the seals out without damaging them and installed them on the correct sides. i grabbed my sprocket hub to do a test fit and it did the same thing. the lip is still hanging out. best i can tell it looks like the hub is contacting the bearing before it is all the way seated.
when i was test fitting i remember the seller saying he replaced the bearings before he shipped it. he got the bearings and such from an autoparts store. i tried to find the pm with all the info in it but i deleted it i guess.
so my next step is to buy new bearings and seals. my question is will this http://www.rockymountainatvmc.com/p...gs&webTypeId=106&webCatId=14&prodFamilyId=571
and this http://www.rockymountainatvmc.com/p...s&webTypeId=106&webCatId=14&prodFamilyId=2054 fit in a twin row carrier?

anybody have any ideas? i beat on the bearings with my socket press :lol: thinking maybe they werent seated correctly but they didnt move a centimeter. are the bearings side specific? im not having problems with the brake hub fitting in the carrier, its only the sproket hub. does the hub slide inside the bearing or does it just ride aganist it?
thanks for any and all help :D
 

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i took my swingarm off to mess with the seals. if i was smart i would have taken the carrier out of the swingarm :banghead: but anyway, i got the seals out without damaging them and installed them on the correct sides. i grabbed my sprocket hub to do a test fit and it did the same thing. the lip is still hanging out. best i can tell it looks like the hub is contacting the bearing before it is all the way seated.
when i was test fitting i remember the seller saying he replaced the bearings before he shipped it. he got the bearings and such from an autoparts store. i tried to find the pm with all the info in it but i deleted it i guess.
so my next step is to buy new bearings and seals. my question is will this http://www.rockymountainatvmc.com/p...gs&webTypeId=106&webCatId=14&prodFamilyId=571
and this http://www.rockymountainatvmc.com/p...s&webTypeId=106&webCatId=14&prodFamilyId=2054 fit in a twin row carrier?

anybody have any ideas? i beat on the bearings with my socket press :lol: thinking maybe they werent seated correctly but they didnt move a centimeter. are the bearings side specific? im not having problems with the brake hub fitting in the carrier, its only the sproket hub. does the hub slide inside the bearing or does it just ride aganist it?
thanks for any and all help :D
Both bearings and seals are the same for each side.............
 

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does it sound kinda like ur chain is rubbing on the guide??.....mine was makin a whing type noise at one point and come to find out my bearings were fried.....
 

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i took my swingarm off to mess with the seals. if i was smart i would have taken the carrier out of the swingarm :banghead: but anyway, i got the seals out without damaging them and installed them on the correct sides. i grabbed my sprocket hub to do a test fit and it did the same thing. the lip is still hanging out. best i can tell it looks like the hub is contacting the bearing before it is all the way seated.
when i was test fitting i remember the seller saying he replaced the bearings before he shipped it. he got the bearings and such from an autoparts store. i tried to find the pm with all the info in it but i deleted it i guess.
so my next step is to buy new bearings and seals. my question is will this http://www.rockymountainatvmc.com/p...gs&webTypeId=106&webCatId=14&prodFamilyId=571
and this http://www.rockymountainatvmc.com/p...s&webTypeId=106&webCatId=14&prodFamilyId=2054 fit in a twin row carrier?

anybody have any ideas? i beat on the bearings with my socket press :lol: thinking maybe they werent seated correctly but they didnt move a centimeter. are the bearings side specific? im not having problems with the brake hub fitting in the carrier, its only the sproket hub. does the hub slide inside the bearing or does it just ride aganist it?
thanks for any and all help :D
You will need to go in from the brake hub side and punch that sprocket side bearing out and inspect/ measure the width of the bearing and see if was seated properly. Slide it over the axle and see if it fits correctly and is the correct application then press it in until it seats and you should have clearance for the sprocket hub to enter the carrier and seal. The other problem may be this.....check to see if both bearings are the wrong application because the brake hub may be stopping against the other bearing and you actually aren't going anywhere with the axle until you put the proper width bearings into your carrier. Good luck.
 

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Discussion Starter · #19 ·
does it sound kinda like ur chain is rubbing on the guide??.....mine was makin a whing type noise at one point and come to find out my bearings were fried.....
yeah something like that but i looked down the sprocket into the chain guide and i can see that they arent lined up. im pretty confident the noise is coming from the chain not running straight due to the sprocket hub not going into the carrier like its suppose to. or i hope thats the problem
 

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Discussion Starter · #20 ·
You will need to go in from the brake hub side and punch that sprocket side bearing out and inspect/ measure the width of the bearing and see if was seated properly. Slide it over the axle and see if it fits correctly and is the correct application then press it in until it seats and you should have clearance for the sprocket hub to enter the carrier and seal. The other problem may be this.....check to see if both bearings are the wrong application because the brake hub may be stopping against the other bearing and you actually aren't going anywhere with the axle until you put the proper width bearings into your carrier. Good luck.
i dont have time to mess with it. im gonna take it to my local bike shop (t&t racing) down in bardstown and let jimmy mess with it. hopefully he will get it taken care of and ill be able to ride sometime soon.
i really hate taking it to him, i just dont have 2-3 hrs to dedicate to it. if i wait around til i have time ill never be able to ride :lol:
 
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