08-17-2020, 12:28 AM | #1 |
Join Date: Apr 2020
Location: North Las Vegas, NV
Posts: 12
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TT 250 Emission Delete
Has anyone done an emission delete on a tt 250? Is there a kit available?
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08-17-2020, 07:41 AM | #2 |
Join Date: Jun 2016
Location: Arlington, VA
Posts: 258
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I have done it. I used a bunch of rubber caps from the auto parts store to cap the airbox fitting and the fitting near the exhaust port. Eventually I will fabricate a plate to go over the air injection port on the head.
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4 time WERA SuperVintage Roadracing National Champion, SCTA Land Speed Record Holder, 3rd AMA Motorcycle GP of Miami |
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08-17-2020, 10:14 PM | #3 |
Join Date: Jun 2020
Location: Nashville, TN
Posts: 9
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I'll probably do it too, just got mine and got my first 100 miles on her. Have you noticed any difference in the way it runs?
I can't find the link right now, but someone posted a plate for the air injection on Amazon.
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2020 CSC TT250 2007 Triumph Tiger 1050 |
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08-17-2020, 10:28 PM | #4 |
Join Date: Jun 2018
Location: Florida
Posts: 759
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If the TT250 head is the same as the Hawk , Orion RXB, etc ( and im guessing it is since it's a China bike after all ) then this block off plate is what we all use :
https://www.ebay.com/itm/UNIVERSAL-E...YAAOSwq2JbkEAv I have that exact plate on both my Vader 125 as well as my orion rxb250L
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2001 Mustang GT 2004 Sportster 2018 VADER 2020 Orion RXB250L |
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08-18-2020, 12:33 AM | #5 |
Join Date: Mar 2010
Location: Volcano, Ca
Posts: 7,112
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Just plate it off like we did to ours. I did it for visual effects only. Plug the vac line from the carb and under the tank that used to go to the charcoal canister.
That said, the smog equipment does not rob power. It's strictly a fresh air intake into the exhaust port to pour oxygen on the catalytic converter to burn the excess HC's under heavy throttle at lower RPM's, plus suck out the gas tank vapors as you slosh around. If I had it again, I'd leave it. Just remember, if you take the air intake off and leave the stock exhaust with the cat, it may soot up over time from not burning off the excess because of lack of fresh air. If you change the exhaust and dump the cat, you best disable the air intake because it will dump in fresh O2, and cook your muffler packing if the cat isn't there.
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"Light a fire for a man, and you heat him for a day. Light a man on fire, and you heat him for the rest of his life." 2007 Suzuki DRZ400S (SM convert) 2009 Q Link XP 200 1967 BSA B25 250cc Starfire 2022 Royal Enfield Interceptor 650 2023 Royal Enfield Scram 411 1948 Royal Enfield Model G 350 |
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08-18-2020, 12:37 AM | #6 |
Join Date: Apr 2020
Location: North Las Vegas, NV
Posts: 12
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Thanks.
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08-18-2020, 02:02 AM | #7 |
Join Date: May 2020
Location: Philadelphia
Posts: 115
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I deleted the charcoal canister but not the AIS yet.
The charcoal canister is an easy delete. I capped off the port on the carb with a rubber cap. I tried capping off the port on the gas tank and got vapor locked. I left that open now and have had no spilling or gas fumes as a result. Deleting the charcoal canister will actually enrichen the idle slightly. I havent cut the canister open, but I did blow through it and it has no resistance. I'm not even sure there is really anything in there. |
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08-18-2020, 09:46 AM | #8 |
Join Date: Jun 2020
Location: Nashville, TN
Posts: 9
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Thanks, 2LZ, best explanation yet for keeping/removing. Still not sure I want an aftermarket muffler, I hear they are pretty loud. Once had a Buell Blast and put a Vance and Hines pipe on it that was so loud it drove me crazy. The older I get, the quieter I like my bikes. My Tiger has a nice growl if you rev her, but at cruising, you hardly notice it.
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2020 CSC TT250 2007 Triumph Tiger 1050 |
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08-20-2020, 05:59 PM | #10 | |
Join Date: May 2019
Location: Maine
Posts: 111
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Quote:
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08-20-2020, 06:22 PM | #11 | |
Join Date: Mar 2010
Location: Volcano, Ca
Posts: 7,112
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Quote:
If you'll be sticking with the stock pipe, I'd just leave it. Bigger questions: How many miles do you have on it now? Is it broke in yet? These engines change dramatically in the first 500 miles. Also, have you adjusted the valves yet? I guarantee they're tight.
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"Light a fire for a man, and you heat him for a day. Light a man on fire, and you heat him for the rest of his life." 2007 Suzuki DRZ400S (SM convert) 2009 Q Link XP 200 1967 BSA B25 250cc Starfire 2022 Royal Enfield Interceptor 650 2023 Royal Enfield Scram 411 1948 Royal Enfield Model G 350 Last edited by 2LZ; 08-21-2020 at 12:47 PM. |
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