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My 95 GSX750F Kat project came with a rusty aftermarket 4-1 header & old Yoshimura muffler that I'd like to reuse if possible...
Official disclaimer - I know nothing about motorcycle mufflers, or what's supposed to be inside them.
The can is a 15" long x 4" OD aluminum tube, with a 2" diameter turn down end cap. I pulled the end cap off and there is nothing in there, no baffle or packing of any type. At the half way point down the tube (7.5" deep) there's a partition with a 1.5" dia. hole through it. I can feel a baffle when I stick my finger through the partition hole, but can't really see much... I'm unable to remove the can from the inlet end cap, mainly because I tried & I'm afraid of ruining it. The inlet side of the muffler is secured to the the 2" exhaust pipe somehow, I suspect there are fasteners from the inlet cap holding it on...
So my question are:
- Should I be trying to fit a baffle from the outlet side of the partition to the outlet end cap (7.5" length)?
- What size baffle ID would be appropriate?
- Do I match the 1.5" dia partition hole? Or go smaller/larger?
- Should I wrap the "new" baffle so that it fills up the entire can volume (approx. 3.75" ID)?
BTW - I called the Yoshimura technical people & they basically told me they know nothing about that can (or what's supposed to be in there) because it's out-of-production & obsolete.
There are lots of replacement baffles & wrap kits available on-line which I figure I could modify to fit inside this can - I'm hoping someone here knows these old Yosh cans & can offer me some adive on how to make it usable again.
Any advice is welcome - Thanks!! Mike
Official disclaimer - I know nothing about motorcycle mufflers, or what's supposed to be inside them.
The can is a 15" long x 4" OD aluminum tube, with a 2" diameter turn down end cap. I pulled the end cap off and there is nothing in there, no baffle or packing of any type. At the half way point down the tube (7.5" deep) there's a partition with a 1.5" dia. hole through it. I can feel a baffle when I stick my finger through the partition hole, but can't really see much... I'm unable to remove the can from the inlet end cap, mainly because I tried & I'm afraid of ruining it. The inlet side of the muffler is secured to the the 2" exhaust pipe somehow, I suspect there are fasteners from the inlet cap holding it on...
So my question are:
- Should I be trying to fit a baffle from the outlet side of the partition to the outlet end cap (7.5" length)?
- What size baffle ID would be appropriate?
- Do I match the 1.5" dia partition hole? Or go smaller/larger?
- Should I wrap the "new" baffle so that it fills up the entire can volume (approx. 3.75" ID)?
BTW - I called the Yoshimura technical people & they basically told me they know nothing about that can (or what's supposed to be in there) because it's out-of-production & obsolete.
There are lots of replacement baffles & wrap kits available on-line which I figure I could modify to fit inside this can - I'm hoping someone here knows these old Yosh cans & can offer me some adive on how to make it usable again.
Any advice is welcome - Thanks!! Mike
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