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Old 08-09-2019, 12:12 AM   #1 (permalink)
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Add cat to a motorcycle?

So I'm just getting into motorcycling and have a Honda 919 (CB900F). It's a 2007 model. I'm concerned about emissions and looking for a small project and was wondering how feasible it would be to add some sort of catalytic converter to it. Is it even possible or worth it? I know modern bikes ship with them standard now. But I can't find any sort of universal cat for sale that I can splice into the exhaust system.

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Old 08-09-2019, 12:46 AM   #2 (permalink)
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Does Vegas have a smog problem?
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Old 08-09-2019, 01:03 AM   #3 (permalink)
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How about this one?
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Old 08-09-2019, 10:43 AM   #4 (permalink)
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Quote:
Originally Posted by oil pan 4 View Post
Does Vegas have a smog problem?
Earth has a smog problem
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Old 08-09-2019, 11:13 AM   #5 (permalink)
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Found this pretty easily...

http://www.ebay.com/itm/Motorcycle-C...g/352386503832
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Old 08-09-2019, 11:50 AM   #6 (permalink)
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Quote:
Originally Posted by Stubby79 View Post
That's interesting. How would you judge whether it will be effective? Is there a flow rate standard or something?

OP: good on you giving a damn about emissions. We should.

EDIT: Also, this: https://news3lv.com/news/local/repor...-cite-progress
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Old 08-09-2019, 02:46 PM   #7 (permalink)
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Quote:
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That's interesting. How would you judge whether it will be effective? Is there a flow rate standard or something?

OP: good on you giving a damn about emissions. We should.

EDIT: Also, this: https://news3lv.com/news/local/repor...-cite-progress
If all it means is splicing in 3-6 inches of catalytic converter into my exhaust, why shouldn't I do it?

I want a zero motorcycle, but it's not feasible here. I'm in an apartment, no garage, no charging station, and the zeros are still too expensive. And after the 5 year battery warranty there's no clear upgrade/refurbishment program.
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Old 08-09-2019, 03:24 PM   #8 (permalink)
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I thought about putting a cheap reliable antique 2 way cat onto my 2 cycle Subaru 360 just because dimensionally it would fill the same spot as the rusted out expansion chamber

Sadly the places that market cats donít seem to have a dropdown of size/type/etc of cats because of the must meet OEM spec BS.

Unfortunate since the 2 ways are only like $15-20 and I would throw them on in place of mufflers on old little cars if I could easily find them in the correct dimensions
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Old 08-09-2019, 03:28 PM   #9 (permalink)
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You could also find one for a Geo Metro, which has a similar sized engine, and splice it in.
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Old 08-09-2019, 04:44 PM   #10 (permalink)
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Quote:
Originally Posted by TurnNBurn View Post
Earth has a smog problem
Smog isn't a global pollutant.

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1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
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