Exhaust studs; where to find cheap?

Liamthedevastator · Jun 10, 2017

I hate to start a thread for this question but where the hell are y'all sourcing your exhaust studs from? PartsnMore has them for $12USD, then $20USD shipping(!?) so I'd rather find an alternative. I was going to make my own from stainless but that makes a pretty serious galvanic potential between the studs and the case so zinc plated would be better I think, or whatever they use.

So does anyone know where I can find some for less than $20?

xschris · Jun 10, 2017

I found some that work at my local hardware store. I think I paid $1.25 each for them.

Liamthedevastator · Jun 10, 2017

They're M8x1.5 right? I'll go take a look at some local stores on Monday when they open up again.

Jeff0133 · Jun 10, 2017

I used 8mm stainless steel allenhead bolts

Liamthedevastator · Jun 10, 2017

Goodness, now there's a concept! Thanks for the tip Jeff!

Jeff0133 · Jun 11, 2017

Worked great,Just remember to use antiseize on the bolts.

xschris · Jun 11, 2017

8m 1.25 pitch.

arfstrom · Jun 11, 2017

Thanks guys, I have one stuck too, now to get the sub surface part out.

xschris · Jun 11, 2017

The reason to have the stud instead of a bolt, that you have to remove over and over, is to reduce the risk of damaging the soft aluminum head. Use the stud if you can get them. Or cut the head off the bolt to make a stud.

NewHavenMike · Jun 11, 2017

For that price you can just buy a used head on Ebay.

arfstrom · Jun 11, 2017

XSchris, you make this sound easy

kshansen · Jun 11, 2017

xschris said:
8m 1.25 pitch.

Are they the same thread on both ends? I only ask because very often a stud will have a course thread into a casting but a fine thread for the nut.

I'm talking in general practice and have not removed any exhaust studs from a Yamaha recently if ever.

xschris · Jun 11, 2017

Same.

Jeff0133 · Jun 12, 2017

xschris said:
The reason to have the stud instead of a bolt, that you have to remove over and over, is to reduce the risk of damaging the soft aluminum head. Use the stud if you can get them. Or cut the head off the bolt to make a stud.

....how often do you remove your headers...?

xschris · Jun 12, 2017

Not too often, but I don't want to mess up the head if I don't have to. Only takes one wrong twist to wreck a thread.

Liamthedevastator · Jun 12, 2017

xschris said:
Only takes one wrong twist to wreck a thread.

True that. Besides, it's cheap to buy M8's and modify them... probably $0.80/bolt then some modification with a hacksaw and vice grips.

Now, while we're talking about damaging the head, what antisieze are you guys using? I've got some Permatex Copper but the galvanic potential is quite high between aluminum and copper so I've not used that yet. Thoughts?

xschris · Jun 12, 2017

The studs I have used are black steel bolts like the case bolts. I put them in dry.

Liamthedevastator · Jun 12, 2017

Got four plated steel M8 bolts for $1.00 from my local NAPA. Those guys are the best! Thanks everyone for the recommendations; I'll post a photo once the exhaust is back on my bike!

Exhaust studs; where to find cheap?

Liamthedevastator

It's dingaling'n time

xschris

XS400 Guru

Liamthedevastator

It's dingaling'n time

Jeff0133

XS400 Junkie

Liamthedevastator

It's dingaling'n time

Jeff0133

XS400 Junkie

xschris

XS400 Guru

arfstrom

XS400 Guru

xschris

XS400 Guru

NewHavenMike

1976 XS360C

arfstrom

XS400 Guru

kshansen

XS400 Addict

xschris

XS400 Guru

Jeff0133

XS400 Junkie

xschris

XS400 Guru

Liamthedevastator

It's dingaling'n time

xschris

XS400 Guru

Liamthedevastator

It's dingaling'n time

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