Connection of header pipe to exsust pipe - Triumph Forum: Triumph Rat Motorcycle Forums
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post #1 of 6 (permalink) Old 04-05-2006, 02:08 PM Thread Starter
Grand Prix 125
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Hey guys, what is the best way to connect the header pipe to exhaust. Mine leak event after I "Cranked the nut hard". I noticed silicone when I took off the old ones. The service book says to use it. Is this the best way? Is silicone that is good to 600 degrees good or will it melt. Is a little escaped exhaust bad? It says to let it dry well, overnight before you start up.

Best to all

George :hammer:
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post #2 of 6 (permalink) Old 04-05-2006, 02:23 PM
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The Dealer replaced my Header pipes, under warranty blueing, before I took it off the floor, when I bought it new. They have "leaked" at the Mufflers since. Don't seem to have any problems - 13K miles now. I haven't bothered to think, consider, or worry about it - till this post. "Thanks for that Berk."

[ This message was edited by: WaltZ on 2006-04-05 13:23 ]

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post #3 of 6 (permalink) Old 04-05-2006, 02:54 PM
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George, smear some RTV "high tempurature" silicone sealer (available at any auto parts store) on the header pipe and inside the muffler fitting. Twist into place and snug down the fittings. It's best to let it sit overnight to set up.
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post #4 of 6 (permalink) Old 04-05-2006, 10:41 PM
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Any GE silicone will take all the heat your exhaust system can put out. I used the old GE silicone 1 on my BSA headers at the header/head junction (they were slip in the head headers) and the silicone took the heat and lasted for years even when the header pipes would turn cherry red out 4 to 6 inches from the head.


2003 T-100 (790cc), NARK, NH Togas, 8100 rpm rev limiter, 158 main jets, 42 pilot jets (less than 1 turn out on pilot screws), stock needles--no shims. 13 A/F ratio from 1100 rpm to 4000 rpm; 12 A/F ratio from 4000 rpm to 6000 rpm; 13 A/F from 6000 rpm to 8100 rpm.:D
2007 Tiger 1050--White:D--SW-Motech crashbars, Skidmarx rear hugger/chain guard, Calsci +7 windscreen.
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post #5 of 6 (permalink) Old 04-06-2006, 12:19 AM Thread Starter
Grand Prix 125
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Sounds like the Silicone is ok . I get the bike back from my dealer in SF. Had no power on the left cylinder at low end. They shimed the neddles, but the big find was that the piolt jet was clogged. Should I run a fuel filter. If so what type?. The ones at cycle Gear for $2 seem so funky. Maybe Brent has a chrome one with a Brit flag on it! Just kidding Brent.

Thanks all

Berk :wink:
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post #6 of 6 (permalink) Old 04-06-2006, 04:30 AM
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There is a filter. It is inside the "T" on the common pipe between the carbies. I took off the hose from the tank and pulled the filter out and threw it away. The hole with the filter in was only 1/8" or slightly larger the pipe is 5/16" After a long run a t full throttle mine was running out of fuel. Switching to reserve it took 15 seconds or so to start running properly again.
The filter was slightly blocked.
I replaced it with an aluminium screw together job which was about $15.
It doesn't run out on fast runs. I still can't keep up with a Fireblade though.


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