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Old 10-31-2010, 03:25 PM   #1
Jerzey
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valve stem broke at around 90-100mph

so yea im doing about 90mph (on some road in mexico) let of the throttle and the bike feels wobbly. get to the sholder and i see nothing wrong but my rear tire is flat. i did not want to be on the highway sholder so i took the next exit and went to the gas station...

so i look over the tire and i see nothing then i see the valve stem is bent. i go to touch it and it bends all the way! the is like cut in half with only very little holding it still on....

so im 12 miles from where im going..... so i try to ride it .... man it felt odd. doing 25-35 mph with no air in the rear tire sucked. stopped evrey 3-5 miles for a min or two to let the tire cool....

my question.. is my tire up now??? i know it got pretty hot. can i just get Motorcycles Unlimited to put a new valve stem in? or do u recommend that i should get a new tire since i rode on this one flat and hot??

who has had a valve stem break????? ive heard of ppl breaking them with the LED valve stem lights. but i dont have that. just a plastic cap.......

valve stem fail
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Old 10-31-2010, 03:31 PM   #2
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Trade it in for a Kawi, use a steel valve stem preferably flush mount!

Last edited by Lokati; 10-31-2010 at 03:34 PM.
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Old 10-31-2010, 03:45 PM   #3
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prolly when the new tire was mounted they didnt use a new stem and it finally gave way, seen that happen before even on cars, most likely the tire is trashed, hopefully didnt ruin the rim, let whoever looks at it decide if the tiore is salvagable, I would say no after riding on it
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Old 10-31-2010, 04:00 PM   #4
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Quote:
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prolly when the new tire was mounted they didnt use a new stem and it finally gave way, seen that happen before even on cars, most likely the tire is trashed, hopefully didnt ruin the rim, let whoever looks at it decide if the tiore is salvagable, I would say no after riding on it
Well Motorcycles Unlimited did it and I doubt they reused my old stem..... Tire still looks great from the out side !!!!!!!!!!
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Old 10-31-2010, 04:00 PM   #5
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man you just have the worst luck with that bike.
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Old 10-31-2010, 04:03 PM   #6
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Your luck blows lately bro. I am glad that you pulled over but it would have been better to just park the bike and call a friend to pick it up. Tires and rims are expensive to replace.
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Old 10-31-2010, 04:32 PM   #7
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back on the road already local tire center were able to put a valve stem in for me. Going to Motorcycles Unlimited on tue to get this figured out and get new valve stems put in
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Old 10-31-2010, 04:44 PM   #8
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Quote:
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man you just have the worst luck with that bike.
How so only had to replace the stator and rec. That's all and now a valve stem. No big deal. I just thank for keeping me alive on it .
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Old 10-31-2010, 05:22 PM   #9
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Look at your receipt and see if you paid to have Motorcycles Unlimited replace the stem. Just because you have a new tire mounted does not guarantee a new stem.

You will typically see the stem cost on the service ticket....
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Old 10-31-2010, 05:30 PM   #10
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Quote:
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Look at your receipt and see if you paid to have Motorcycles Unlimited replace the stem. Just because you have a new tire mounted does not guarantee a new stem.

You will typically see the stem cost on the service ticket....
I dunno if I still have it. But I will look. I'm in now way saying Motorcycles Unlimited is to blame!!!!! could be a defective stem. happens. Anything can be made right. And any reputable shop should be able to fix a problem. I'm not worried.thank it was not worse!....
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Old 10-31-2010, 05:32 PM   #11
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Quote:
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Trade it in for a Kawi, use a steel valve stem preferably flush mount!
Yea I hear kawis have a self sealing stem now lol
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Old 10-31-2010, 05:44 PM   #12
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Yea I hear kawis have a self sealing stem now lol
lol
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Old 10-31-2010, 06:13 PM   #13
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Anything over the the plastic cap to keep dirt out of the stem is too much weight for the stem. I thought you had dice caps or something? The centrifical force will cause the weight to increase up to 20x the standard weight of any object, hence the reason the stem was bent in the direction of rim travel(Im assuming.)

If you didnt request a valve stem to be replaced, it likely wasnt. Dismount the tire and check the inside for damages. I wouldnt ride on it if possible. GL!
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Old 10-31-2010, 06:23 PM   #14
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Probably spilled some grenadine on it, that stuff will eat right through a valve stem.
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Old 10-31-2010, 06:23 PM   #15
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Quote:
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Anything over the the plastic cap to keep dirt out of the stem is too much weight for the stem. I thought you had dice caps or something? The centrifical force will cause the weight to increase up to 20x the standard weight of any object, hence the reason the stem was bent in the direction of rim travel(Im assuming.)

If you didnt request a valve stem to be replaced, it likely wasnt. Dismount the tire and check the inside for damages. I wouldnt ride on it if possible. GL!
Dj has/had red dice looking things on his stems. I will have to let him know now. I had silver cap things on my older set of tires the bt-021 since I've had the BT-023 I've had the plastic cap on them. But that would make since that the stem would break if they were not changed out. I rode about five miles home after the new stems were just put on tire feels good. But will def get everything looked at. And get stems front and back
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Old 10-31-2010, 06:25 PM   #16
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Quote:
Originally Posted by Smurfzilla View Post
Probably spilled some grenadine on it, that stuff will eat right through a valve stem.
:
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Old 10-31-2010, 06:25 PM   #17
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Quote:
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Probably spilled some grenadine on it, that stuff will eat right through a valve stem.
Dag!!!!!! Ur right that's what must have happened hahahahahah
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Old 10-31-2010, 06:28 PM   #18
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Word, that is like battery acid lol
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Old 10-31-2010, 06:30 PM   #19
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Word, that is like battery acid lol
Ya... it's like 180 proof.
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Old 10-31-2010, 06:39 PM   #20
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Because bikes have their tires changed frequently we don't always change the stems, although we always check their integrity / look for signs of dry cracking. I don't recall if yours was changed or not.
That said, anything can / will happen, including people who don't like you taking a box cutter and putting a small slice in them. Seen it happen more than once.
Anyhow, swing up Tuesday and we'll look the tire over
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