Changing center idler wheels

daveh

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Hi Folks,

I know this has been posted before but since I do not have the sled right in front of me, is it true that to change the two inner idler wheels on a 06/07 attak you simply just bolt em on (14mm) assuming I am going to use the SMA-8FP38-01 BK spoked (130mm) accessory wheels as a replacement or is there other things that must be done to remove/replace?

Thanks

Dave
 
Nope that's it. If you go with the wheels that have the 6205 bearing you will have to machine down the holder. The spoke wheels just bolt right up.
 
kenbar said:
Any machine required on the outer wheels if you use 6205 bearings?

Kenbar

NO...here's a pic w'"6205" like LJ452 said you have to machine the inner rear mounts only, not a big thing...
 
How are you guys "machining" the mounts? With a grinder? On a lathe? etc? And how much are you taking off?

Thanks
 
marq said:
How are you guys "machining" the mounts? With a grinder? On a lathe? etc? And how much are you taking off?

Thanks

Thanks to Jordan (lj452) for just modifying some mounts for me on a lathe...
 
wheels

Machining is not necessary if you use longer bolts. You can also use the stock bolts with loctite. The stock bolt contacts threads all the way to the nylon on the nut.
 
The machining of the inner mounts for the 6205 bearing wheels is not to accomodate the shorter bolt. The machining is required to keep the inner wheels centered.

The outer wheel mounts do not need to be machined for the 6205 bearing wheels because it does not matter that the wheel is moved out slightly.
 
idlers

I understand what you are saying Blue, but I don't think any track clearances are that tight. I have used the 04 wheels for over 2 years, without any clearance problems. The track clips are the main thing that controls the side movement of the track, and many of us use the narrow sliders, instead of the stock wider hyfax. That allows the track to move from side to side, and I never heard any complaints about wheel alignment. I have heard many complaints about inner wheels loosing pieces of rubber, but maybe that's because the narrow hyfax lets the wheels hit the lugs. I would think improper hyfax width would affect alignment more than taking the small amount off the mount.
 
apex yooper - if you haven't machined your mounts and you have installed the 04 style wheels with the wider bearings take a look at the distance between the inside center wheels and the inside drive lugs on the track. You will notice the wheels are tight up to the drive lugs. This will not allow the track to move side to side at all. I have seen in the hands of an aggressive driver with studs those center wheels cracked right off or extremely warped from the side pressure of the drive lugs pushing the wheels sideways when cornering. I have also seen wear to those drive lugs from constantly rubbing along the wheels. This is why the mounts need to be machined.
 
I measured the 6005 bearing width at 12 mm and the 6205 at 15 mm. Therefore the mounts need 1.5 mm (half of the 3 mm difference) machined off to keep the 6205 wheel centered where the 6005 wheel was.
 
wheel

I think that proves my point Blue. The track clearance allows for a lot more that 1.5 mm, otherwise the lugs would be rubbing the wheel all the time. As I said, I have used them for over 2 seasons, with no rubbing. I put on about 3,500 miles a year.
 
Re: wheel

apex yooper said:
I think that proves my point Blue. The track clearance allows for a lot more that 1.5 mm, otherwise the lugs would be rubbing the wheel all the time. As I said, I have used them for over 2 seasons, with no rubbing. I put on about 3,500 miles a year.

I think what Kevin at port is saying...sure you are obviously doing that and getting away with it but if you plan on aggressive riding...and those who do know who you are...its not advisable ...
 

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Since I have access to a machine shop where I work, I would machine all six mounts (2 inner & 4 outer) if I was installing the 6205 bearing wheels.

However I like the looks of the spoked (6005) wheels better and Port Yamaha aparently has the black ones in stock that my dealer has backordered.

Therefore I will probably buy six of the black spoked wheels from Port since I have already bought the matching black spoked rear axle wheels from my dealer.
 


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