Chain snapped!

Discussion in '610/630' started by Spice Weasel, Apr 21, 2014.

  1. JonDirt Husqvarna
    AA Class

    Location:
    London and NYC
    Husqvarna Motorcycle:
    TE610 2008
  2. Big Timmy Husqvarna
    Pro Class

    Location:
    (South Eastern) AZ.
    Husqvarna Motorcycle:
    2015 FE 501 with lots of goodies.
    Other Motorcycles:
    BMW G450X, 15'FE501, 23 KTM 1290 SAR
    Whats Up BigDom, haven't seen you over here for awhile, hope all is well. It sounds like you may know SA beach regulations from first hand experience? HaHa, and how was your linkage bearings after doing that on the beach.
    Timmy
  3. Motosportz CH Sponsor

    Location:
    Vancouver WA
    Husqvarna Motorcycle:
    2021 TE250i, 570 Berg, 500 KTM, 790R
    Other Motorcycles:
    many

    there are huge areas of beach you can ride here in Oregon and Washington.
  4. BiG DoM Husqvarna
    AA Class

    Here they are all considered conservation areas and protected. No vehicles except for conservation patrol vehicles and some specified areas for beach launching of boats.
  5. Kyle Tarry Husqvarna
    Pro Class

    Location:
    Portland, OR
    Husqvarna Motorcycle:
    2012 WR 300, 2006 TE 610
    Other Motorcycles:
    Ducati Monster S2R 800
    Mexico !

    [IMG]

    [IMG]
    JonDirt, bax3 and BadMotoWeazal like this.
  6. Spice Weasel Husqvarna
    AA Class

    Location:
    UK
    Husqvarna Motorcycle:
    08 SM610
    My chain looped up between the sprocket and swingarm, i had to remove the link at the top of the loop to free it.
    Something there, like in your vid, might have stopped that loop happening,

    I havent had much free time lately so have just taken my bike to the engineers today.
    The welder said the best method to repair would be to build the hole up with weld rather than weld around a patch.
    Im not getting the guard mount welded back on, i see it as a waste of time.
    We will see what the outcome is, watch this space.......
  7. Kyle Tarry Husqvarna
    Pro Class

    Location:
    Portland, OR
    Husqvarna Motorcycle:
    2012 WR 300, 2006 TE 610
    Other Motorcycles:
    Ducati Monster S2R 800
    In your video, you show the other part (the "second" half) of the broken chain going around the countershaft sprocket. However, if it's broken, why would it do that? It's probably just going to get flung off into space, in some direction depending on where it is when it breaks. It's not going to follow the other half of the chain into the sprocket like in your video, since they aren't connected any more.
  8. Big Timmy Husqvarna
    Pro Class

    Location:
    (South Eastern) AZ.
    Husqvarna Motorcycle:
    2015 FE 501 with lots of goodies.
    Other Motorcycles:
    BMW G450X, 15'FE501, 23 KTM 1290 SAR
    You see, talk to a welder, the man (or woman) wants to weld. I'm sure he didn't recommend buying some JB weld did he. I hope everything turns out OK. If it can be welded and saved that would be great.. If its patched with JB its just patched with JB. Thats enough though to get it to a good welder.

    Lets hope he's able to do a good job and do it correctly. If he's working for someone else, his own job may be at stake. If he's working for himself, it may be his own reputation at stake.
  9. Motosportz CH Sponsor

    Location:
    Vancouver WA
    Husqvarna Motorcycle:
    2021 TE250i, 570 Berg, 500 KTM, 790R
    Other Motorcycles:
    many
    I personally would not weld that without disassembling the case and handing him just that part. Your just asking for trouble and I have already personally seen a "fix" like that end up costing way more because other parts failed. Disassemble and have it welded and done right or slap some JB weld on it and live with it.
    Big Timmy and Pinepig like this.
  10. Big Timmy Husqvarna
    Pro Class

    Location:
    (South Eastern) AZ.
    Husqvarna Motorcycle:
    2015 FE 501 with lots of goodies.
    Other Motorcycles:
    BMW G450X, 15'FE501, 23 KTM 1290 SAR
    Of course thats what I'm talking about Kelly. Having the "case" welded and properly repaired. It's the only way to do it in my opinion also. Like I said before earlier in this post. I've sent many customers packing there greasy pile right back out the door because it wasn't stripped, or even cleaned. All I would want is the broken case. It wouldn't be my concern what had to be done to get it there. I won't put anything dripping oil, greasy or covered with grime in my bead blaster or assembled to other parts anyway. So off to the car wash they would go and then back home to split the cases. you would be surprised how many times I've had people do a full case split to repair something of this nature. Mostly by people under the age of 25 infact. Why that is I couldn't tell you but they didn't care how much work it was and split the engine. People closer to my age, 55 wouldn't want to bother to do that. So right out the door they went. I'm over it.

    I am fully aware of the fact this may be to expensive or to much work for some or maybe for anyone who has this problem on this forum and JB weld is the go too product for most of all of you. If so, thats your choice. if I was asked to do the welding on"it". "it" is all I need to weld.

    Thankfully I can do without taking in side jobs like this nowadays.
  11. jimmyc Husqvarna
    AA Class

    Location:
    pittsburgh pa. USA
    Husqvarna Motorcycle:
    11 TXC449, 09 SM610, WR250, plated
    Other Motorcycles:
    18YZ250X GS1200 busa duc900SS GG
    Broke a master link ( weakest link ) past sunday , boy did I luck out .

    Had a spare master was back on the road ....

    [IMG]
    JonDirt likes this.
  12. Kyle Tarry Husqvarna
    Pro Class

    Location:
    Portland, OR
    Husqvarna Motorcycle:
    2012 WR 300, 2006 TE 610
    Other Motorcycles:
    Ducati Monster S2R 800
    Do you have a picture of how/where the link broke? Did it fracture a plate, or did the clip just come off?
  13. Motosportz CH Sponsor

    Location:
    Vancouver WA
    Husqvarna Motorcycle:
    2021 TE250i, 570 Berg, 500 KTM, 790R
    Other Motorcycles:
    many
    Two things here.

    1. Run a BRP or TM Designworks chain guild, they are much better, stronger, dont bend to the side, have more room for the chain so less likely to peel your clip off

    2. put silicone glue over the masterlink clip. It helps the clip stay on. I do this to my countershaft clip also.

    I use this stuff, works great. Stays on so good you need to pick it off with needlenose pliers when your ready to remove the clip.

    [IMG]
    James Patton likes this.
  14. Theo Husqvarna
    AA Class

    Location:
    Lombardy, Italy
    Husqvarna Motorcycle:
    SM 610 I.E.
    Other Motorcycles:
    2001 YZ250
    You're right, but for me it's difficult to imagine how the chain could wrap otherwise. Maybe it could do that if it snaps here, due to the engine brake:
    [IMG]
    Anyway, I think that something like this
    [IMG]
    and a case saver would be an effective prevention.
    IMO the chain has to have no more space around it than the quantity it needs to work, because the wrapping nees room to happen.
  15. EricV Husqvarna
    AA Class

    Husqvarna Motorcycle:
    TE630
    I'd agree, Theo, that a case saver of such/similar design could only be beneficial. However, it seems to me that the greatest chance of snappage would come from applying the throttle, hence a break along the topside of the chain. Sure, engine braking will increase load/tension along the underside, of course, but from a likelihood perspective I think most breaks occur under accel load. I also think that centrifugal force would dictate that the chain would fly away from the CS sprocket, as opposed to following it around.
  16. Theo Husqvarna
    AA Class

    Location:
    Lombardy, Italy
    Husqvarna Motorcycle:
    SM 610 I.E.
    Other Motorcycles:
    2001 YZ250
    Good reasoning; I didn't consider that.
  17. BiG DoM Husqvarna
    AA Class

    Rivet link the way to go IMHO.
    Motosportz and Spice Weasel like this.
  18. Spice Weasel Husqvarna
    AA Class

    Location:
    UK
    Husqvarna Motorcycle:
    08 SM610
    I posted that a loop of chain somehow forced its way between the sprocket and swingarm. It must have got backed up a little for the sprocket to keep a hold and drag it through. A guard in that position might have done something good, just enough to keep peeling the chain away from the sprocket.
  19. Theo Husqvarna
    AA Class

    Location:
    Lombardy, Italy
    Husqvarna Motorcycle:
    SM 610 I.E.
    Other Motorcycles:
    2001 YZ250
    Like the chain of jimmyc in its post #51 above?
  20. Spice Weasel Husqvarna
    AA Class

    Location:
    UK
    Husqvarna Motorcycle:
    08 SM610
    Similar, but it went right through to touch the chain on top.
    I had to remove the link at the top of the loop to free it otherwise it wouldnt pass back through
    There seems no way of preventing a snapped chain from gathering around the gear lever area.