Bent Spindle, A-Arm, sub frame?? - Yamaha YFZ450 Forum : YFZ450, YFZ450R, YFZ450X Forums
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Old 02-01-2012, 06:58 PM   #1 (permalink)
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Default Bent Spindle, A-Arm, sub frame??

Long story short I had a hill climb go wrong and rolled the "R" down about 3 1/2 times for about 15 ft. Obivouse damdag was a bent steering stem and bars. Close inspection revealed the upper right a-arm was tweeked. Not noticable until you check the camber and toe.....I replaced it. Still a little tweeked. Question is do you think it's possible to take a hit so hard to bend a spindle and not a rim, axle, or tie rod? My sub framed apperars tweeked too judging by the grab bar mounting bolts when measured from the ground up....So total damage might be bent upper and lower right a-arm, bent spindle, bent stem, bent bars, and bent subframe. When I say bent I'm talking very very minor but expensive to make perfect. Does all this carnage seem possible and not even bend a rim, axle, or tie rod or am I just trying to find things wrong to ensure my "R" is perfect again? I am anal.....buying all new OEM plastics due to a few scratches......
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Old 02-05-2012, 11:13 PM   #2 (permalink)
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If front is still tweaked after new arms you probably bent the very front of the frame, I have seen it happen on kfx450r's alot. Usually just enough to cause alignment problems.
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Old 02-05-2012, 11:25 PM   #3 (permalink)
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Still got a lower a arm and spindle to replace to determine that.
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Old 02-06-2012, 02:43 AM   #4 (permalink)
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a friend crashed his raptor semi hard and it very so slightly twisted the whole frame. Nothing you notice when you ride but if you measure rear wheel to front wheel on both sides it differs about ½"
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Old 02-06-2012, 07:57 AM   #5 (permalink)
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A bent spindle can cause your problems. My buddy bent a spindle on his z400 and it made the front left tire so sit way out of whack. A bent spindle would be my bet rather than the lower arm. An easy way to check is to remove the front wheel, hub and brakes. You will be able to eyeball it and see if its bent.
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