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Yamaha Tech Originally the Yamaha XT600 Tech Forum, due to demand it now includes all Yamaha's technical / mechanical / repair / preparation questions.
Photo by George Guille, It's going to be a long 300km... Bolivian Amazon

I haven't been everywhere...
but it's on my list!


Photo by George Guille
It's going to be a long 300km...
Bolivian Amazon



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  • 1 Post By xtrock
  • 1 Post By Bobmech

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  #1  
Old 27 May 2016
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Any good ideas?

The threads rustet and broke off inside on the muffler, any good ideas what i can do to fix? Welding new threads can be difficult because the surface need to be like it is now, best if there was some 8mm just screw in?All i find is so big and i cant drill out bigger hole because of the mounting bracket have to be 10mm hole and only 8mm bolt will fit.

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Old 27 May 2016
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2 Pcs 12mm Male 8mm Female Thread 15mm Length Tapping Threaded Insert | eBay

Think i try this one, drill and make some new threads, use some jb weld on the threads so it will stick.
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Old 28 May 2016
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I think you are better off using a "rivnut" or a "nutsert"

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Old 28 May 2016
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Quote:
Originally Posted by Bobmech View Post
I think you are better off using a "rivnut" or a "nutsert"

Bob
Thanks, i was looking at those too, but iam not sure i will manage to fit the edge, then i have to hammer down so it will be flat with surface. To get the old remains out i need to drill with 12mm and the rivnut is only 12mm so it will fall inn, thats why i wanted to use the old steel and make some threads in it. I order and see what fits best, found one with larger edge on top.

Last edited by xtrock; 28 May 2016 at 17:02.
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Old 28 May 2016
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I'd plug weld the hole shut and re-drill n tap , no need for inserts or anything.
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Old 28 May 2016
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Originally Posted by jjrider View Post
I'd plug weld the hole shut and re-drill n tap , no need for inserts or anything.
Yes i would too if i had equipment and skills for this job, iam not paying for fixing this..You know here they dont charge like one for a welding job Iam doing a insert one way or the other, its not like i have the exhaust muffler off every week.
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Old 28 May 2016
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This is a pretty important connection point. If you muffler is loose it WILL fall off. Bite the bullet and have someone weld, drill and tap it as JJ suggests. He KNOWS what it takes to stand up to the rigors of riding. Should NOT be very expensive.
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Old 29 May 2016
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This is a pretty important connection point. If you muffler is loose it WILL fall off.
No no it will never fall off, 3 bolts 8mm and the big clamp holding muffler.
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Old 29 May 2016
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Not immediately, but if left loose it will get looser over time. Vibration cracks can develop. I am just saying it is important to get everything tight as engineered. If the bolt was not necessary it would not have been put there.
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