Is this bad?

[mikesullyyy]

Does anyone know if the swingarm is naturally like this?... idk why or what happend if not... now that i really look at it it looks like it might be like that but idk any feedback? Thanks tons guys!

[Erik Marquez]

No that is not like stock.

 

 that happened when the chain was allowed to wear though the chain slider.

 

If it's not through the swing arm, sand down the high spots, install a new slider, go ride.

[mikesullyyy]

Was it from the chain to tight?

[Joehio]

Probably a result of using a smaller than stock front sprocket.

[mikesullyyy]

No its all stock. Also the screws holding the slider on were stripped when i just tried loosening them lol... this is gonna be fun

[mikesullyyy]

Uh oh D= ... How bad is it give it to me straight lol damn. Im beyomd glad i went through and did this check over or this would have gotten worse!

[mikesullyyy]

Do i need a new swingarm? Qnd where would i find one? I did a fast look online and saw some ok used ones for like 100$.. thanks for all replies. I wasnt expecting any of this..... i may never be able to ride her again =[

[npm]

No its all stock. Also the screws holding the slider on were stripped when i just tried loosening them lol... this is gonna be fun

What does the slider look like?

[Erik Marquez]

I would repair (weld & Machine) that swing arm or replace.

 

Let me look and see if I still have a good used one, will Pm if I do

[707LAKE]

http://www.wheelingcyclesupply.com/shop/product/swing-arm-slider/677

http://www.wheelingcyclesupply.com/shop/product/drz400sm-oem-chain-slider/706

[150ron]

Uh oh D= ... How bad is it give it to me straight lol damn. Im beyomd glad i went through and did this check over or this would have gotten worse!

Wow,  that looks pretty bad,  how is the chain?

 

how many miles on your bike?

Edited May 22, 2014 by 150ron

[mikesullyyy]

Well im sure that explains why my chain was streched so far lol and its only 7000 miles a handful less actually. Thats half the reason for all this i got new chain and sprockets someone a while back here said l should do maintenence on swingarm also good thing i did! Props to whoever that was or i wohkd have found myself in a worse situation down the road.

[mikesullyyy]

That was from one year in my possesion lol. Got it with 1800 miles pretty sure PO was first owner to. I dont think he did much with it though had the stock tires still didnt look dirty at all. But idk why would this have happend? Anything to do with the tighness of the chain? And i could probably get it welded by someone i know hopefully.

[mikesullyyy]

You guys think a weld would be fine?

[Erik Marquez]

You guys think a weld would be fine?

Weld, and bore the ID, trim down the outside so the chain slider fits,  sure..

 But the cost is going to greatly eclipse the buy in price of a used one I bet, unless you can do the work yourself or have a good friend to do it. 

[bmwpowere36m3]

Do you have another picture showing the damage, but from the inside bore of the swingarm pivot (where the dust seal and bearings fit)?  Your choices for repair (best to good enough): replace swingarm (new or good used), weld damage, JB Weld.

 

I say, depending on where its worn through, applying JB Weld (NOT 5 min) to the damage will be enough.  If it's only worn through at the outer edge, where the dust seal sits and not much deeper… then JB should be fine.  That portion of the bore only holds the dust seal in place.

 

Similar damage repaired with JB Weld: https://www.thumpertalk.com/topic/943483-swingarm-issue-jb-to-the-rescue/

[Qqqqqqqqqqqq]

I would say they would have had a vibration issue , that's fairly Chewed .

[Erik Marquez]

The swingarm is located laterally by thrust washers or bearings against the outer edge of the swingarm and the frame.
I personally would want full structural integrity up to or over what the OEM design is for lateral strength.

 

IOW.... if a large section of the swingarm was cut or ground out like that one in the picture is.... slathering in JB weld would not be my solution..

 

I acknowledge, it may not that be that big a deal.. And that if the side of the swingarm were to laterally collapse ..... it would would probable just start binding.... the rider would notice and likely no catastrophic crash was going to take place.  

 

Opinions very.... and lots of folks believe in JB weld as a fully structural metal replacement..  Im not that lucky, and i dont. 
 

[150ron]

I would say they would have had a vibration issue , that's fairly Chewed .

Why yes,  it certainly is...   M8.

[mikesullyyy]

So a full weld or a new swingarm would be the best option? Im thinking possibly new one i know people with welders but im not sure about a bore. Im having trouble getting the bearings out also