Go Back   EcoModder Forum > EcoModding > Motorcycles / Scooters
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 08-15-2019, 11:21 AM   #21 (permalink)
JSH
AKA - Jason
 
JSH's Avatar
 
Join Date: May 2009
Location: PDX
Posts: 1,623

Adventure Seeker - '04 Chevy Astro - Campervan
90 day: 17.3 mpg (US)

Dieselgate - '14 VW Jetta Sportwagen TDI
90 day: 38.24 mpg (US)
Thanks: 82
Thanked 927 Times in 618 Posts
Quote:
Originally Posted by TurnNBurn View Post
I looked on my exhaust and what I thought was a "resonator" is indeed a cat. Sure doesn't seem like it's doing its job. My backpack and I stink after a ride.
What do you stink like? (Fuel, Oil, ???)

Your bike is fuel injected and has a catalyst so you shouldn’t smell. The exhaust will smell a bit after start-up but that should go away once it is warmed up. I’ve never stunk after riding even will older bikes ((my bikes range from 1976 to 2011). Something has to be wrong with the bike.

Do you have any smoke visible from the exhaust? Do the plugs look OK? Is the coolant level OK? Has some installed a power commander and screwed up the fuel mixture?

How long have you owned this bike, how many miles on it?

  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 08-15-2019, 01:07 PM   #22 (permalink)
EcoModding Newb
 
redpoint5's Avatar
 
Join Date: Aug 2010
Location: Oregon
Posts: 8,406

Acura TSX - '06 Acura TSX
90 day: 29.14 mpg (US)

Lafawnda - '01 Honda CBR600 F4i
90 day: 47.32 mpg (US)

Big Yeller - '98 Dodge Ram 2500 base
90 day: 21.82 mpg (US)

Prius Plug-in - '12 Toyota Prius Plug-in
90 day: 57.64 mpg (US)

Mazda CX-5 - '17 Mazda CX-5 Touring
90 day: 28.5 mpg (US)
Thanks: 2,836
Thanked 3,232 Times in 2,409 Posts
Do fuel injected bikes have O2 sensors both pre and post cat?

The OP is a mile high, and my understanding was that the bikes have static fuel maps that don't adjust to changing air density.

Another question is what octane fuel is being used? Plenty of people report unburned fuel smell when they use premium fuel in a bike not designed for premium. I run regular in my CBR600, because that's what it was designed for.

As far as reasoning for adding a cat to a motorcycle, smog is a local problem. If the locality does not suffer a smog problem then I see no reason to get poorer fuel economy and higher CO2 emissions to reduce a local and short-lived pollutant that isn't a problem.
__________________
Gas and Electric Vehicle Cost of Ownership Calculator







Give me absolute safety, or give me death!
  Reply With Quote
Old 08-15-2019, 02:09 PM   #23 (permalink)
JSH
AKA - Jason
 
JSH's Avatar
 
Join Date: May 2009
Location: PDX
Posts: 1,623

Adventure Seeker - '04 Chevy Astro - Campervan
90 day: 17.3 mpg (US)

Dieselgate - '14 VW Jetta Sportwagen TDI
90 day: 38.24 mpg (US)
Thanks: 82
Thanked 927 Times in 618 Posts
My 2002 BMW had O2 sensors and my 2011 does as well. I can't find an O2 sensor for the 2007 Honda CB919 but a quick call to his local dealer could determine that. (I might not be looking in the correct place on the Parts fiche)

I did find an Air Control Valve. I'm not sure if that is for idle air control, or to inject fresh air into the exhaust to reduce NOx. Either way if it isn't working (Or someone removed it) the bike won't run right.

TurnNBurn - Is you bike a California model? If so it should have a EVAP canister. If someone removed it incorrectly that could also cause problems.
Attached Thumbnails
Click image for larger version

Name:	Air Injection Control Valve.jpg
Views:	11
Size:	46.2 KB
ID:	26700  
  Reply With Quote
Old 08-27-2019, 01:40 AM   #24 (permalink)
It's all about Diesel
 
cRiPpLe_rOoStEr's Avatar
 
Join Date: Oct 2012
Location: Porto Alegre, Rio Grande do Sul, Brazil
Posts: 8,459
Thanks: 0
Thanked 918 Times in 813 Posts
Quote:
Originally Posted by Stubby79 View Post
You could also find one for a Geo Metro, which has a similar sized engine, and splice it in.
Considering that a motorcycle engine usually operates at a higher RPM, maybe the cat of a larger car engine would be more suitable to the higher exhaust flow
  Reply With Quote
Old 10-31-2019, 03:09 AM   #25 (permalink)
gil
EcoModding Lurker
 
gil's Avatar
 
Join Date: Aug 2008
Location: Watsonville, CA
Posts: 67

The Drift - '85 Toyota Corolla GTS
90 day: 28.26 mpg (US)

!Rally - '02 Subaru Impreza WRX
90 day: 27.68 mpg (US)

Cinnamon - '13 Honda PCX 150
90 day: 75.86 mpg (US)
Thanks: 58
Thanked 11 Times in 8 Posts
Quote:
Originally Posted by TurnNBurn View Post
Honda 919 (CB900F). It's a 2007 model.
You could also get a newer bike. The honda CTX700 has a big cat, visible from the front of the bike. You could algo go electric, can't be cleaner than that.
__________________
  Reply With Quote
Old 11-14-2019, 10:47 AM   #26 (permalink)
EcoModding Lurker
 
Join Date: Mar 2012
Location: syracuse,ny
Posts: 45
Thanks: 17
Thanked 6 Times in 6 Posts
Adding a cat to a motorcycle(that doesn't already have one) isn't going to save the earth. It may make you think you're helping, but have you seen what just one factory in China puts out in just one hour?
  Reply With Quote
Old 11-17-2019, 06:58 PM   #27 (permalink)
It's all about Diesel
 
cRiPpLe_rOoStEr's Avatar
 
Join Date: Oct 2012
Location: Porto Alegre, Rio Grande do Sul, Brazil
Posts: 8,459
Thanks: 0
Thanked 918 Times in 813 Posts
Quote:
Originally Posted by minimac View Post
Adding a cat to a motorcycle(that doesn't already have one) isn't going to save the earth. It may make you think you're helping, but have you seen what just one factory in China puts out in just one hour?
Sure retrofitting a cat into an older vehicle won't "save the world", but it's not so negligible at all.
  Reply With Quote
Old 01-09-2020, 06:20 PM   #28 (permalink)
EcoModding Lurker
 
Join Date: May 2010
Location: Louisville,TN.
Posts: 30
Thanks: 74
Thanked 4 Times in 4 Posts
My 1997 BMW has a cat and an O2 sensor. It's made into the exhaust system right in the middle. The only way to gut it would be to cut the top or bottom open. Remove the material, then weld the section you cut out back in. I think you will spend a lot of time trying to make a cat work efficiently on an older, small displacement motorcycle..

  Reply With Quote
Reply  Post New Thread


Thread Tools




Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com