Carburettores & gas Sensors? - Triumph Forum: Triumph Rat Motorcycle Forums
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post #1 of 21 (permalink) Old 04-20-2019, 07:54 AM Thread Starter
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Carburettores & gas Sensors?

I am a bit baffled right now, really don't know what to make from this.

I have a 2008 Bonneville with twin carburettors. So.... Why da hell do I have gas sensors going into my pipes?

I am I missing something?

I am about to replace my exhausts, and the new ones have the hole for the sensors or a plug to cover the hole.
Shall I keep them shall I remove them?
I have a problem of throttle jerkiness that I have read its attenuated by removing the sensors can anyone confirm? And if so do I.. Just cut them off? XD

Thanks a Lot, help appreciated as the presence of this sensors is humbling me, as I really don't get it
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Last edited by TILL_PT; 04-20-2019 at 07:57 AM.
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post #2 of 21 (permalink) Old 04-20-2019, 08:48 AM
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I'm sure someone can give a more definitive answer than me. But I will throw this out there. You have an 08 and are in Europe? Right about the transition to EFI.
Do you have a fuel petcock for the gas tank? If yes you likely have carbs, if no, then you have a fuel injected model. The faux carbs on the EFI models look very much the same as carburetors.
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post #3 of 21 (permalink) Old 04-20-2019, 09:23 AM Thread Starter
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No I dont have a Petcock
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post #4 of 21 (permalink) Old 04-20-2019, 11:18 AM
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Quote:
Originally Posted by TILL_PT View Post
No I dont have a Petcock
Then it looks like you have a first year EFI model. The O2 sensors are providing input to the ECU. . And yes, you have an ECU, and can connect to it through the OBDII port that is likely under your seat. Check out the TTP site for lots of good info if you haven't already.
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post #5 of 21 (permalink) Old 04-20-2019, 11:46 AM Thread Starter
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OMG this will make my mods so much easier, how was I oblivious to this... so the entire carb is fake?
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post #6 of 21 (permalink) Old 04-20-2019, 12:15 PM
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It contains the fuel injectors and I believe is referred to as a throttle body. I used the "faux carb" term because it uses the carburetor form factor to hide the EFI components but maintains the more classic look of carbs.
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post #7 of 21 (permalink) Old 04-20-2019, 01:44 PM
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If you notice your carbs say 'CTK' on them. My stock carbs for my 08 where 'CVK'. Like was said you have a EFI bike.

Ride safe,

Quentin
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post #8 of 21 (permalink) Old 04-23-2019, 04:27 PM
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Carbureted bikes are easily spoted because they have the tps connector at the right side of the carbs. Also, there are not fuel light and there is a fuel peacock.
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post #9 of 21 (permalink) Old 04-23-2019, 04:57 PM
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CVK on Carbs, CTK on Injected Bikes.

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post #10 of 21 (permalink) Old 04-23-2019, 06:38 PM
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I spotted the FI setup from your image...the little 3mm vacuum lines running off the top side of the intake manifolds....running up to the MAP sensors.
I know the fake bodies fool other riders/passers-by, but haven't heard them fool an owner until now!
Don't be disheartened....the fakes are actually made by the real carb company, and just hollowed out for the FI's.

;-)
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