twisted frame/swingarm saga??

[iancp5]

I'm amazed you have a bent swingarm - thought it would break before bending.

You aren't running the chain too tight? - although I would expect something else to break if it was that tight, like the chain itself. It should be looser, in my opinion, than the manual states.

I can only think the most likely explanation is something isn't aligned and when the bike is used it slowly bends. The thing is making sure you identify the root cause before changing something. Have you checked the swingarm mounts through the engines case and frame? Stick a long rod through - doesn't matter if much thinner than the pivot as the bottom of the holes should all align.

[MattR]

Can you post some pics of what you are seeing?

[dudenstumpy]

Yes, please let us see some photos. I spent quite some time in my garage yesterday staring at my ec300 rear ( trying to visualise what could be wrong with yours )

[fullthrottle]

Originally Posted by dudenstumpy

Yes, please let us see some photos. I spent quite some time in my garage yesterday staring at my ec300 rear ( trying to visualise what could be wrong with yours )

ok ill get some photos over the week end , i have a feeling that the frame must be twisted but its hard to tell by eye and being that my subframe has had a hard life and isnt quite straight isnt helpin the situation
thanks for the intrest

[dudenstumpy]

G'day Mate, what's happening ? any update ?

[fullthrottle]

ok sorry for the delay..... ive been busy here are some pics its hard to tell wats going on it looks more like a pretzle






its the swingarm / frame im worried about, ive got another subframe to put on but dont see the point atm

[fullthrottle]

[Eric K]

Here is where I would start...

1) Set the rear wheel vertical with a level, then check to see if your front wheel is vertical. From your pics it looks like the forks may be close to vertically aligned with the rear wheel.

2) run strings or straight boards the length of the bike along the outside edges of the tires and see if the front and rear tires are in the same track when parallel.

If both of those check good, then I would look at the subframe.

[iancp5]

The photos look pretty inconclusive. It looks wonky but as you say probably just the subframe which is normal after a bit of crashing. I think as said it's a case of carefully measuring everything and checking for play anywhere there can be play.

[skid jackson]

it does look a bit funky ......
pull the subframe off and then take a pic
without the suframe, fender, seat, exhaust pipe in the pic any issues with the frame would be more obvious