The last exhaust studs you'll ever buy?? - Honda Rebel Forum
 
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post #1 of 5 Old 01-16-2020, 08:59 PM Thread Starter
 
Join Date: Jun 2012
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The last exhaust studs you'll ever buy??

I just stumbled upon these while searching for something else.

M6 x 33.5 Titanium studs $8.95/ea.

https://racetechtitanium.com/product...6x33-5mm-stud/

92 CB250 Nighthawk - partsbike
93 CB250 Nighthawk - partsbike
92 CB250 Nighthawk - project
78 CB400T - partsbike
81 CM400C - Project, on the road
73 CB750K3 - Long term project
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post #2 of 5 Old 01-17-2020, 10:05 AM
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great find!

1985 CMX250 ... 1986 CMX450 ... 2005 Ruckus 50
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post #3 of 5 Old 01-17-2020, 10:14 AM Thread Starter
 
Join Date: Jun 2012
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I posted it,over at Honda Twins and one of the gurus said to always use antisieze on all exhaust studs.
Is the reason these break because they bottom out in the head, or is it because after so many heat cycles they weaken?

I noticed the same Honda part number was used on the old CBX 6 cylinder bikes too, no breakage pattern there, but likely less strain distributed over 12 studs than 4...

I wonder if new nuts would be best? Stockers or Ti?

92 CB250 Nighthawk - partsbike
93 CB250 Nighthawk - partsbike
92 CB250 Nighthawk - project
78 CB400T - partsbike
81 CM400C - Project, on the road
73 CB750K3 - Long term project
Alan F. is offline  
 
post #4 of 5 Old 01-17-2020, 06:50 PM
 
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This is what I have learned for the car / truck world. Bikes may be slightly different.

Many of us "old timers" have always used brass double long nuts (if available) on exhaust studs.
The brass won't rust but is a softer metal hence the double length nut.
Heat cycles weaken the stud / nut and they tend to rust /seize together. Anti seize makes them usually much easier to get apart. Brass won't rust.

2001 CMX250C Rebel
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post #5 of 5 Old 01-17-2020, 07:21 PM
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anti-seize is a wonderful thing and it's impossible to use without getting it all over yourself and everything you touch

fingers, face, pants, tools, wash your hands before you pee

anti-seize is a great anti-corrosion but also a lubricant that affects torque

if you use it on studs that have a torque spec, that spec may not reached if you are using anti-seize

check your nuts regularly

1985 CMX250 ... 1986 CMX450 ... 2005 Ruckus 50
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