Exhaust Flex to Y Pipe Bolts

cnybrian

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Cato, NY
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Snowmobile
2006 Yamaha Attak
LOCATION
Cato, NY
Digging further into the 2006 Attak for summer maintenance and I have the seat and gas tank off to replace the exhaust donuts with the copper ones I picked from Sledtoyz. I have reached the band clamps and the bolts are really rusted on. Got some PB and going to use some heat to get them off. Does anyone know what size they are? I'd like to replace them with stainless hex bolts to help prevent rusting and make removal the next time a little easier.
 
Stock OEM donuts come with new bolts.
 
what teamblue4 said, you will need to take one in somewhere or go purchase new ones from the dealer since you purchased yours elsewhere. Also i filed my clamps down just a bit so that they close tighter when i changed mine out.
 
Digging further into the 2006 Attak for summer maintenance and I have the seat and gas tank off to replace the exhaust donuts with the copper ones I picked from Sledtoyz. I have reached the band clamps and the bolts are really rusted on. Got some PB and going to use some heat to get them off. Does anyone know what size they are? I'd like to replace them with stainless hex bolts to help prevent rusting and make removal the next time a little easier.

Are you talking about the clamps to join the Ypipes to the muffler or the clamps that hold the Ypipes to the flex pipes?
 
Actually, both. Both the hex head bolts holding the band clamp flex pipe to Y pipe are rusted together and the star head bolts holding the Y pipe to the tunnel are rusted and the heads are stripped. I have the OEM part numbers. What I was looking for was the bolt sizes so I do not have to order 1 of each and then go purchase a stainless steel version.
 
I know that I replaced them all but can't remember sizes off hand, I'll see if any of the old ones are around in the garage. If you have calipers you can measure the OD and they are metric so they should measure slightly below the nominal thread size.
 
Can't find any old ones but measure yours and you will know what they are (5.8mm OD = M6 thread, 7.8mm OD = 8mm thread, etc). I had to drill out the rivets and remove the hanger bracket to replace those screws.
 


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