'02 Nomad Failing Emissions - Page 2

blowndodge · 04-05-2011, 01:14 PM

Your bike should always fail the test without the cat.... at least in California it would fail.

trosco · 04-05-2011, 01:54 PM

I am not absolutely certain, but pretty sure that a "rich" mixture (or unburt fuel in the exhaust) will push the HydroCarbon (HC) number up in a emisions test. I think he is too lean meaning that he has left over oxygen after his fuel was used up. The oxy doesn't like to exist by itself so it grabs other elements like Hydrogen and Carbon to combine with. The Carbon Monoxide (not dioxide) reading that he failed on can be efected by adding fuel and then CO goes down and H2O rises. And a chemical or thermal intervention post combustion (goats blader is a thermal &chemcial intervention) will do much the same thing.

**BudMan** · 04-05-2011, 05:31 PM

Quote:

Originally Posted by trosco

I am not absolutely certain, but pretty sure that a "rich" mixture (or unburt fuel in the exhaust) will push the HydroCarbon (HC) number up in a emisions test. I think he is too lean meaning that he has left over oxygen after his fuel was used up. The oxy doesn't like to exist by itself so it grabs other elements like Hydrogen and Carbon to combine with. The Carbon Monoxide (not dioxide) reading that he failed on can be efected by adding fuel and then CO goes down and H2O rises. And a chemical or thermal intervention post combustion (goats blader is a thermal &chemcial intervention) will do much the same thing.

I can't believe I actually understood that. ;)

blowndodge · 04-05-2011, 05:37 PM

I can't believe you did either!!!!

macmac · 04-05-2011, 06:06 PM

Get the hotter plugs out too. You don't want hotter plugs in any engine not burning a heck of a lot of oil. Whats hotter is the inner ceramic core of the plug, the spark is the same.

You are begging for ping hell! Get a fuel modual on that bike too, before ping eats the engine up.

The EPA is all about breaking the laws of nature and phisics.

mikestorm · 04-07-2011, 07:02 PM

I have stock pipes on my ride but my previous bike had Vance & Hines Longshots. I kept.the stock pipes in the shed just in case. I nearly had to swap back to stock one year because the garage gave me a hard time about the noise.

04-05-2011, 01:14 PM	#16
blowndodge Sr. Contributor Join Date: Jul 2007 Location: Washington City, Utah Posts: 16,474	'02 Nomad Failing Emissions Your bike should always fail the test without the cat.... at least in California it would fail. __________________ I love my Victory Cross Country Tour 106. Smells like Victory! Ultra's are Limited There are two types of Harley riders. Those that trailer them and those that push them. The most Interesting Man in the World "Find the things in life you don't do well and don't do those things" Member # 0005 Login or Register to Remove Ads
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04-05-2011, 01:54 PM	#17
trosco Sr. Member Join Date: Feb 2008 Location: Charlotte, NC Posts: 1,464	'02 Nomad Failing Emissions I am not absolutely certain, but pretty sure that a "rich" mixture (or unburt fuel in the exhaust) will push the HydroCarbon (HC) number up in a emisions test. I think he is too lean meaning that he has left over oxygen after his fuel was used up. The oxy doesn't like to exist by itself so it grabs other elements like Hydrogen and Carbon to combine with. The Carbon Monoxide (not dioxide) reading that he failed on can be efected by adding fuel and then CO goes down and H2O rises. And a chemical or thermal intervention post combustion (goats blader is a thermal &chemcial intervention) will do much the same thing. __________________ trosco: just call me Ross 2007 Black & Titanium Nomad (Nomad made 65K but got replaced 2014) 2010 Titanium Goldwing 2014 KLR 650 New Edition
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04-05-2011, 05:37 PM	#19
blowndodge Sr. Contributor Join Date: Jul 2007 Location: Washington City, Utah Posts: 16,474	'02 Nomad Failing Emissions I can't believe you did either!!!! __________________ I love my Victory Cross Country Tour 106. Smells like Victory! Ultra's are Limited There are two types of Harley riders. Those that trailer them and those that push them. The most Interesting Man in the World "Find the things in life you don't do well and don't do those things" Member # 0005
	0

04-05-2011, 06:06 PM	#20
macmac Sr. Contributor Join Date: Apr 2008 Location: Tamworth New Hampster 06 1600 Posts: 12,484	'02 Nomad Failing Emissions Get the hotter plugs out too. You don't want hotter plugs in any engine not burning a heck of a lot of oil. Whats hotter is the inner ceramic core of the plug, the spark is the same. You are begging for ping hell! Get a fuel modual on that bike too, before ping eats the engine up. The EPA is all about breaking the laws of nature and phisics. __________________ 06 1600 Nomad Just call me Mac molon labe come and get it Login or Register to Remove Ads
	0

04-07-2011, 07:02 PM	#21
mikestorm Jr. Member Join Date: Jun 2010 Posts: 27	'02 Nomad Failing Emissions I have stock pipes on my ride but my previous bike had Vance & Hines Longshots. I kept.the stock pipes in the shed just in case. I nearly had to swap back to stock one year because the garage gave me a hard time about the noise.
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