KX Riders
Maintenance & Technical => KX250 / KX125 => Topic started by: Jmoore6.7 on June 09, 2015, 01:18:14 PM
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Howdy, I'm sure this is all for nothing but here we go. Does anyone have a source for the RH sub exhaust valve for 94 250? I'm sure not I keep getting the typical run around and email returns for "discontinued" how about 12005-1243? The 96 cylinder valve, I could make it work but can't find those either. Anyone got any good ideas??? It's the last piece I need....
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I had a set on eBay that sold in about 3 hours.
I like that 94 cylinder..
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Well if you happen to have another????
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I don't right now but you never know what will come in the door next..
(http://i.ebayimg.com/00/s/MTA3MVgxMjAz/z/zVcAAOSweW5Vb3HW/$_57.JPG)
I'll let you know if I run into any
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I've heard from a few kx fiends , "buy a loaded cylinder, then resell the unloaded cylinder" :wink:
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Sssshhhhhh...... :-P
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Yeah that's gonna have to work. Just hope the loaded cylinder has a seller who knows what they looking at. It would be my luck to find another one with broken valve.
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The 99-04 valves are a smaller diameter and I have been toying with the idea of sleeving one up to suit a 93 cylinder. Although I also have a 99 cylinder so I should just use it. If I ever try it I will post the results.
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My left side is good, it's the right one I found broke in half. I was thinking about making some kind of mood and casting new ones. I don't have any experience but I figure if I can cast bullets...... It would be a bad thing to fall apart though
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What material is the valve made of? Mild steel? Wouldn't it be possible to just tig weld it together.
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Seems to be aluminum. I'm missing top half. Previous owner apparently couldn't find one either so he put half of it back in cylinder... Dumb. And of course didnt see until tore into top end.
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I just so happen to have what your after! I can send pics tomorrow if you want. They need to be cleaned but have no visible problems
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I will put my hand up for them if Jmoore6.7 doesn't want them.
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Or, if your desperate... ride without them....
You'll loose some low end to mid-range but you will be riding..
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Who ever wants mine pm me with your # and I'll send some pics, then make me a reasonable offer.
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I rode for about 3 months without them...was just like a 4 stroke lol
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im currently looking for this valve for my 1997 kx250 restoration........ doing a fro replica and i just cant seem to source this part anywhere..... i am 1 step away from having them made. 12005-1242 LHS sub exhaust valve
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I went through the same situation when I did my rebuild on my 88 250 last spring.....one of the valves had the very tip broken off and I was able to drill and tap to a piece of 6mm bolt that I threaded into the valve & ground it to the proper length. It worked but I'll probably look for a new set as the gears and the track for the center valve are worn. But, they are working great for now. left and right pn# 12005-1099 & 12005-1100
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luckily i think i have found a good 2nd hand one to use for now but mine just had worn gears so i wanted to replace it as the rest of my bike will be mint and it was causing the powervalve to slightly bind on actuation. But this does beg the question what are we going to do when there is no more power valves available? I can make them but for each valve it takes atleast 6 - 8 hours depending on the complexity, degrees and angles of the gears cutting a gear up to a shoulder is really hard and its something i really cant be bothered doing in my free time. would much rather be riding hehe.
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Ive read somewhere that you can jamb the valves so they are constantly open?.......anyone else heard of this???
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Yes you can but that's a Not a good idea :roll: