Author Topic: YZ250B Exhaust + Muffler  (Read 6185 times)

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Offline gt96

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Re: YZ250B Exhaust + Muffler
« Reply #15 on: June 23, 2014, 07:01:38 pm »
SS header arrived today. Thanks John. Work of art.












Offline Iain Cameron

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Re: YZ250B Exhaust + Muffler
« Reply #16 on: June 23, 2014, 07:23:49 pm »
That is lovely , sometimes looking at the work done by members on here I feel like a bloody bush mechanic .
Yamaha tragic ; dt1, rt1, dt2, rt2, dt2mx , rt2mx , mx250, mx360,sc500, 74dt125, yzx125, yzc250, yzc400, yzd250, yzd400, yzh250, yzh80 , dt100 , xr75 ko xr80 03 , it175 82 . Not a member of any club

Offline Davey Crocket

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Re: YZ250B Exhaust + Muffler
« Reply #17 on: June 23, 2014, 08:01:54 pm »
It is a work of art, I wish I could take credit, I had the flange machined on a CNC by my machainist, then my guru welder made a jig off an original header pipe supplied by Ross Campbell on here. The pipe is hydroformed out of flat sheet [same grade as they make aircraft exhausts out of] and made into a long S shape, it is then cut up into the right shape and tig welded together, then they made all the little brackets, if you saw the finished product you would want one just to put in your china cabinet. It fit's YZ250B and 360B, the header is always cracked and burn't out and almost impossible to buy NOS or a decent 2nd hand one. The rest of the exhausts on these are usually OK.  I will be selling the flanges separate as every aftermarket exhaust made for these and the YZ250/360A models have a basic pipe that fits over the barrel spigot and they never seal, you can just shorten the pipe flange and weld it on, it seals on 2 O-rings just like the factory one. 8)...pm me if you want one....Aussie quality at it's best.
QVMX.....Australia's #1 VMX club......leading the way.

Offline Rossvickicampbell

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Re: YZ250B Exhaust + Muffler
« Reply #18 on: June 24, 2014, 08:52:25 am »
must admit I was amazed at how accurately mine had been copied - even to some of the slightly offset welds or similar.  It bolted straight on, gaskets/o-rings fitted straight in - far exceeded anything I thought it could be.  It also appears "thicker" than the standard one - mine were blowing out under the bottom and as Davey says you can't find them for love nor money.

As Iain says - really good to see another "hole" filled by Aussie work.

Davey - thanks for that.

I shall retire on the royalty cheques  ;D
1974 Yamaha YZ360B
1980 Honda CR250R - Moto X Fox Replica

Offline Davey Crocket

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Re: YZ250B Exhaust + Muffler
« Reply #19 on: June 24, 2014, 09:34:02 am »
Cheques in the mail Ross. ;)
QVMX.....Australia's #1 VMX club......leading the way.