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Re: [ST] "warped" headers



Try the glow test, go for a ride, quickly put it in the garage
(you do garage your triumph right :-), close the door, turn
off the lights, if the headers are glowing, life is bad.

My guess is, the bike is either running way rich, or way lean. Both
of which will cause combustion to carry on in the exhaust headers.
Which is fine for NHRA, but not the best for our street bikes.

Tom

On Fri, 25 Oct 2002, Neale Parker - Customer Technical Support Specialist wrote:

> Hi,
>         Just after some input on what would be the cause of "warping" 
> the headers on my 6 week old 3500km 02 model.
> 
> I had the dealer put the Triumph stainless exhaust on before I rode it 
> out of the shop. A couple of weeks later I was noticing backfire when 
> fully throtling off from about 6-7000 rpm. The dealer checked the 
> mapping and said everything was ok. Riding home from the dealer the bike 
> was vibrating. ( was not vibrating when I took it in) Could feel it 
> throught my feet and upper legs. And still backfiring. Bike back to 
> dealer, they had another look and now have said that the headers are 
> warped. They have ordered replacement from Triumph ( 4-6 week delivery) .
> 
> They have put the headers back on so I can ride.
> 
> Is there any cause for concern running the bike with " warped" headers?
> Any input will be appreicated.

/*************************************************************
 Thomas Emberson
 '01 BRG Sprint ST (last count 18 months old, 25,100 miles)
 '00 Yamaha WR400F
 '01 Suzuki TL1000s (last count 14 days, 403 miles)
 sold: '98 ZX6e, '99 ZX9r, '95 EX500
*************************************************************/


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