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Is this what exhaust headers are supposed to look like?
- Thread starter chris
- Start date
they look back to front to me. just checked mine and there is a 5mm gap between head and clamps.
do you have the gaskets in place?
do you have the gaskets in place?
isigt
XS400 Addict
yeah, I think they should be flipped.
the "wide" side towards the engine.
the "wide" side towards the engine.
hardtailed77
Never Finished
Yep, definitely on backwards.
Requiem
XS400 Addict
how sure are you? 
thats how mine are mounted as well
does it even matter? they're not a tight fit to the cilinders anyway
thats how mine are mounted as welldoes it even matter? they're not a tight fit to the cilinders anyway
OliverB
XS400 Junkie
Same as my '80 and my son's '81 with a nice gap present.
tonupNW
xs newbie
Should have a little gap. One of your gaskets if probably muffed up. They are crush gaskets I believe so if you take the pipes off and reinstall there is the chance for a leak, similar to a head gasket.
isigt
XS400 Addict
Anyhow, when you take them off you see which side is right.
On a second thought I tend to agree that they are mounted the right way. haha.
but even the haynes manual is unsure. It has pictures of both ways.
Could it be different in different years?
On a second thought I tend to agree that they are mounted the right way. haha.
but even the haynes manual is unsure. It has pictures of both ways.
Could it be different in different years?
Ace4569
Original XS400 Chick
Mine was that way so I think your good I would check the gaskets though
best way is to check that the machined "ledge" inside the clamp faces the engine!
hardtailed77
Never Finished
My 77 is mounted the opposite way of what is picture. I'm also wondering if certain years were mounted differently. WIERD! Mine only go on one way to hold the 2-piece metal gasket in correctly.
dO-bOy
Woohooo!
another one for the way the picture is
I suppose it doesn't matter much as long as the header seals, but mine were put back the way I found them. The purpose of the fins on the collar is to radiate heat, so it seems to me the larger portion of the fin would be away from the heat source.
Here are mine:
Here are mine:
Yamaha Newbie
Yamaha Newbie
New guy here with a question, this seems to be an appropriate thread. Just bought a 81 XS400 Special that has a puffs (no smoke) coming from just inside the collar. Tried to pull the exhaust off to see if new seals were in order and can't get the collar past the studs. Looking at it from the top with the tank removed it seems the inside studs are splayed down and away from center line. Is this normal? is there a trick to getting the collars off without crushing the threads on the studs? I'm thinking somebody screwed up in the bikes past (history is totally unknown). And oil wouldn't leak from there, unless I've been wrong about internal combustion engines my whole life. I'm getting oil down the front of the engine, can't tell if it's coming from there or higher up like the oil pressure sending hose. Any thoughts would be greatly appreciated.
BTW didn't buy the bike till I had read half of the forums on here to make sure I had 'tech support' available. The amount of knowledge shared here is amazing.
BTW didn't buy the bike till I had read half of the forums on here to make sure I had 'tech support' available. The amount of knowledge shared here is amazing.
