Catalytic Converters
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4th Gear
Joined: Jun 2013
Posts: 8
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From: Florida
Catalytic Converters
I have tired to find a concrete answer to this with no luck. I have called a dealer and the factory. No concrete answer. So here it is: If, for whatever reason, you decide to keep the cat in your bike, how long will it last? The cats in cars have about a 100k life. So what is the life of a cat in a bike? Any thoughts? Dealer had no idea, factory said it depends on lots of stuff (translation we havent thought that far ahead). Hopefully there is an informed person out there with the answer.
Club Member
Joined: Jun 2007
Posts: 45,429
Likes: 2,898
From: Bedford UK
Welcome to HDF from the UK.
Most car owners leave their car stock, whereas Harley owners can't keep their sticky fingers off their bikes! We get posts from 'owners' wanting to modify a bike they have only just ordered and delivery is still months away FFS. I sympathise with the factory.
I can't see why a bike cat, everything left as it came out of the factory, shouldn't last as long as a car's cat. Why do you ask? Why does it matter.....
Most car owners leave their car stock, whereas Harley owners can't keep their sticky fingers off their bikes! We get posts from 'owners' wanting to modify a bike they have only just ordered and delivery is still months away FFS. I sympathise with the factory.
I can't see why a bike cat, everything left as it came out of the factory, shouldn't last as long as a car's cat. Why do you ask? Why does it matter.....
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4th Gear
Joined: Jun 2013
Posts: 8
Likes: 0
From: Florida
Took the cat out of my 2010 Ultra (96) and could not get it to run right, even with a rema. If the cams are changed that might do it but I am not going there. Put the cat back, big sucker and a remap and all is well. Runs cooler and gets about 7 mile more to the gallon plus more power. It was just a questtion of of interest. And since no one really knows the answer that made me want to know more. I am inclined to agree with you on the time it will last. The bike cat is different than a car"s and after looking at one their construction is very simple. Not much to go wrong with one.
Tourer
Joined: Mar 2011
Posts: 424
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From: Emory,TX
if the engine is in top running condition, the cat will last longer than 100k (warranted till 80K)...excessive oil blowby,burning coolant or over fueling are primary cat killers (causes overheating and leads to thermal breakdown of substrate)
Last edited by jetmech74; Jun 14, 2013 at 11:33 AM.
as before, but much cooler in traffic.
Stellar HDF Member
Joined: Jan 2013
Posts: 2,464
Likes: 50
From: Rouses Point, N.Y.
the biggest failure of catalytic converters is engine misfires. the raw fuel collects inside and causes them to over heat ruining the catalyst .and will set a code for low efficacy.
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