Exhaust Stud, Nut and Bolt specs? - Road Star Warrior Forum : Yamaha Star Warrior Forums

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Old 10-09-2019, 08:52 PM   #1 (permalink)
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Default Exhaust Stud, Nut and Bolt specs?

Anyone know the specs for the exhaust Studs, Nuts and Hex bolts? I have the part number but the cost is crazy. It's cheaper too get them at a store.

Or does anyone know the Yamaha repair kit for them(I had the part number for the kit but can't seem to find it)
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Old 10-09-2019, 08:58 PM   #2 (permalink)
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Be super careful putting the studs in the engine. Broke one off in my motor and had to have it taken out professionally. Hopefully getting my bike back tomorrow.


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Old 10-09-2019, 09:11 PM   #3 (permalink)
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McMaster Carr supply

8mm x 1.25 x 50mm long SS and flanged nuts also SS

Site wouldn't let me send link PM me and I will give it to you.
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Old 10-09-2019, 10:17 PM   #4 (permalink)
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Quote:
Originally Posted by JV_Warrior View Post
Be super careful putting the studs in the engine. Broke one off in my motor and had to have it taken out professionally. Hopefully getting my bike back tomorrow.


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Roger that. I had a broken stud in the rear jug. Had to take the head off to drill it out.

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Old 10-09-2019, 11:03 PM   #5 (permalink)
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Mine was the front right stud. The one that is directly in line with the frame. Tried drilling it and made it worse. Took the guy getting it out a couple days to figure out how he was going to get it. He welded to it and kept breaking his welds. Didnít hear yet how he finally got it. Lesson learned!


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Old 10-10-2019, 11:26 AM   #6 (permalink)
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Yes, it 8x1.25 and 50mm long.

Tried to use stainless steel bolts. Broke 2 out of 4. One on each cylinder. On one, I managed to unscrew it by hammering a torx bit into it. Just in front of the frame. That was lucky.

On the second, I was possible to remove the receiving part of the tube by unscrewing it from the cylinder and the bolt was brutally drilled.

Now I do not use stainless bolts or bolts from solid types of steel. Now I use studs, as installed at the factory and copper / bronze nuts on one cylinder, and ordinary steel screws on the second cylinder.
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Old 10-14-2019, 07:22 PM   #7 (permalink)
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I think I'm going to stick with the OEM Studs, Nuts and Bolts unless there's better ones recommended?
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Old 10-14-2019, 08:11 PM   #8 (permalink)
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OEM on partszilla isnít to hateful on price. But if you can find steel ones over aluminum I would.


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Old 10-14-2019, 09:32 PM   #9 (permalink)
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Ehh, I went with OEM.
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Old 10-14-2019, 10:25 PM   #10 (permalink)
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Might as well, right.
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