Bending subframes

[RM142]

07 Y450.... I think I have replaced 3 of them in a year and a half. It seems every time that big muffler slaps down at all , it tends to tweak that right lower legs and pisses me off. ? Anybody else having this kind of luck or am I just special.?

[Wes Woodin]

07 Y450.... I think I have replaced 3 of them in a year and a half. It seems every time that big muffler slaps down at all , it tends to tweak that right lower legs and pisses me off. ? Anybody else having this kind of luck or am I just special.?

I did tweak mine in a big get off. Other than that, never had a problem. I do have a slightly bent subframe. Dont know what to do with it.

[Tumblin]

THREE SUB FRAMES??

You're sure it's the muffler?

There's got to be more junk in the trunk than the weight of that muffler tweaking your ride.

[fatrussian]

huh, no offense but it sounds like yamahas have weak sub frames cuz when my friends on yamahas crash moderatly hard they bend sub frames:moon:

[Johnny_On_The_Spot]

yeah i bent the one on my 125 a few times. Took a 4' pry bar and straightened it out though. Took all 170 pounds of my weight to straighten it too!

[Family Man]

My local shop bent mine back pretty close to straight and didnt charge me anything. I bent it back closer with a 2x4 by taking all the plastic off and laying the bike on its side with the board placed on top of the wheel and the subframe. It still rubs alittle.

[Ga426owner]

07 Y450.... I think I have replaced 3 of them in a year and a half. It seems every time that big muffler slaps down at all , it tends to tweak that right lower legs and pisses me off. ? Anybody else having this kind of luck or am I just special.?

you are special I think....

I have crashed hard several times including a few loop outs/end over ends

My subframe has been bent but I have been able to rebend it back to almost 100%

You must crash harder than most if they are unrebendable

What are you doing with the bent subframes - I bet they can be fixed easily with a prybar or the Parktools subframe rebender and sold on ebay for some $$relief

[YamaLink]

I used to bend my 05 subframe like it was made of cheese wiz. But no such bad luck since, and I believe my crashing style/speed has improved to the point where I'm supposed to be replacing subframes more. ?

Is your subframe installed properly, meaning, are the bolts torqued down evenly. One time I tighted down the muffler side more than the other side and it was juuuust enough to make contact repeatedly.