DOH! broke an exhaust stud...

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turtle13
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DOH! broke an exhaust stud...

Post by turtle13 »

ok so the good news is that i fashioned a new exhaust gasket out of 3/4 copper pipe and it works great, the scoot tops out at 45 instead of the 40 that it was doing with the keli variator. but when putting the exhaust back on one of the studs popped and snapped off. i know this piece is replacable, but what size and thread is the stud? the nice thing is that it still runs great in the mean time!
'85 aero Malossi BBK w/ Malossi gears, Malossi head, Polini Ruckus Vari and Malossi Wild Lion exhaust
'62 125cc Honda cub
'78 50 special Vespa Small frame
mousewheels
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Re: DOH! broke an exhaust stud...

Post by mousewheels »

Glad your homemade gasket is working out!
I think exhaust/cyl uses an M6 thread stud, about 18-25mm (3/4 to 1")
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turtle13
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Re: DOH! broke an exhaust stud...

Post by turtle13 »

its reverse threaded on the opposite sides so it doesnt back out right?
'85 aero Malossi BBK w/ Malossi gears, Malossi head, Polini Ruckus Vari and Malossi Wild Lion exhaust
'62 125cc Honda cub
'78 50 special Vespa Small frame
mousewheels
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Re: DOH! broke an exhaust stud...

Post by mousewheels »

its reverse threaded on the opposite sides so it doesnt back out right?
Nope nothing special there, it just has an unthreaded section in the middle.
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cubdriver
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Re: DOH! broke an exhaust stud...

Post by cubdriver »

Where does one find such a stud? Is there a honda part number or it is a hardware store item?

sj
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Wheelman-111
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Re: DOH! broke an exhaust stud...

Post by Wheelman-111 »

Greetings:

Honda part only, or you can buy a stick of something called All-Thread in the M6 size and cut a dozen studs from it. Machine shops and metal suppliers in the Bad Part of Town carry the stuff. Thread a nut on before you cut it and the nut will chase the end threads when removed.
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Re: DOH! broke an exhaust stud...

Post by woodman »

i found studs at ace hardware for a$1.60 each with the proper flat spot in the middle.
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turtle13
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Re: DOH! broke an exhaust stud...

Post by turtle13 »

I can't believe this thread got raised from the dead... but yes they are m6 studs that you can pick upfront most any hardware store. I found some Ph blaster every couple of hours for a day or so, then dremel a slot in the remaining stud. Then hit it with an impact wrench lightly will take it right out.
'85 aero Malossi BBK w/ Malossi gears, Malossi head, Polini Ruckus Vari and Malossi Wild Lion exhaust
'62 125cc Honda cub
'78 50 special Vespa Small frame
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Re: DOH! broke an exhaust stud...

Post by cubdriver »

Found 'em at an old timey Ace Hardware.

Thanks!

sj
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