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Offline Arianta

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Re: Maintenance kit for 800
« Reply #20 on: October 21, 2020, 01:52:13 PM »
And it gets worse.
I've been a very silly billy.
Starting to do the valve clearance checks I notice a piece of metal strapping on the exhaust pipes where the catalytic converter is. Or should be, because there isn't one!!!
Someone has either removed it or had it nicked while they had the bike and replaced it with a short length of pipe held with the said strap.
I never noticed this when I bought the bike, so I'm feeling quite a bit stupid.
You can't buy just the cat, you have to buy the complete header system for an eye watering 800!  :019:
 :192:
'38 Triumph 250 single, '55 Tiger cub, more BSA Bantams than you can shake a stick at. '53 BSA A10, '66 Dunstall Norton 750 Atlas, 40 year break, MT07, R3, 650 Burgman, Bonnie America 865, 700 Deauville, Tiger 800. Phew!

Offline awjdthumper

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Re: Maintenance kit for 800
« Reply #21 on: October 21, 2020, 02:09:29 PM »
In the UK, you don't need to have a CAT fitted since the bike's emissions are not measured during an MOT test. Therefore, in principle, you could simply bypass it with a bit of SS pipe, possibly welded in place. There have been various posts on this subject which might be worth looking at as an alternative to paying 800 for a new header assembly!
Suzuki GSX1400, Armstrong MT560 + collection of classic British bikes

Offline hawkbox

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Re: Maintenance kit for 800
« Reply #22 on: October 21, 2020, 04:32:35 PM »
Ouch Mate, that is a rude surprise.  Definitely sounds like the bike needs some proper love.

Offline chico

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Re: Maintenance kit for 800
« Reply #23 on: October 21, 2020, 05:14:44 PM »
A quick check under "cat delete" came up with this tread.

https://www.tiger800.co.uk/index.php/topic,8738.msg115251.html#msg115251

Chico

Offline Londonglide

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Re: Maintenance kit for 800
« Reply #24 on: October 21, 2020, 05:31:38 PM »
There is  one on eBay for 79 ish currently. Downpipes from a 2016. I see no reason they wouldn't fit an earlier one, unless someone knows differently?


https://www.ebay.co.uk/itm/Triumph-Tiger-800-XCa-2016-Exhaust-headers-manifold-down-pipes-Fits-2015-2017/224137658562

Offline Arianta

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Re: Maintenance kit for 800
« Reply #25 on: October 21, 2020, 05:36:11 PM »
*Originally Posted by awjdthumper [+]
In the UK, you don't need to have a CAT fitted since the bike's emissions are not measured during an MOT test. Therefore, in principle, you could simply bypass it with a bit of SS pipe, possibly welded in place. There have been various posts on this subject which might be worth looking at as an alternative to paying 800 for a new header assembly!

But if a previous owner has done that, why on earth would you? Surely it's better to have a cat to help with emissions and help the environment. Just doesn't make sense to remove such an item and I cannot see any benefit from doing so.
'38 Triumph 250 single, '55 Tiger cub, more BSA Bantams than you can shake a stick at. '53 BSA A10, '66 Dunstall Norton 750 Atlas, 40 year break, MT07, R3, 650 Burgman, Bonnie America 865, 700 Deauville, Tiger 800. Phew!

Offline awjdthumper

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Re: Maintenance kit for 800
« Reply #26 on: October 21, 2020, 05:54:24 PM »
The only reason for removing the CAT I can think of is for performance purposes - you get more power from the engine if it doesn't have to force the exhaust gases through the CAT. It is certainly not something I would consider doing!
Suzuki GSX1400, Armstrong MT560 + collection of classic British bikes

Offline Djairouks

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Re: Maintenance kit for 800
« Reply #27 on: October 21, 2020, 06:02:33 PM »
*Originally Posted by awjdthumper [+]
The only reason for removing the CAT I can think of is for performance purposes - you get more power from the engine if it doesn't have to force the exhaust gases through the CAT. It is certainly not something I would consider doing!

I had this talk with my friend who owns a Yami/Kawi dealership, because my Triumph dealer proposes to do
the decat, even if it's outlawed in Switzerland.
They were told by Yamaha that removing the cat on the last R1, only gave 1HP over the 197HP stock, hardly
something amazing against eating your own polution in tunnels especially while riding.

I would expect a bigger gain on the less starved Euro3 Tigers, but still pretty useless in my opinion !

 


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