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Found 10 results

  1. I snagged up an 93 rm250 for cheap. It needs a new head among other things. I'm wondering if a 96-00 head will work or not? Any one tried this?
  2. Hi, Anyone on the forum, or can be referred too, that is an experience engine builder with extensive experience on this DRZ motor? Someone that has built multiple motors and fully understands camshaft profiles? Calling Hot Cams is useless. I have yet to call Webb. I know they are are good. They have done cams for me in the past. I just have a bunch of questions on what I can get away with without head modifications. Using parts off an E or e3 model. I've been digging around and found some info. Can cams from an LTZ400Z be used? Whats the profile? Are the e3 model cams from the 400e a direct bolt in? Springs OK? Decompression still active. I have a bunch of questions. If anyone can help, Id certainly appreciate it. Thanks!
  3. Need help on deciding what to do or how to find what i need. Bought a 1978 Honda xl125s for father son project. It had low compression, found piece of metal holding both valves open. It had beaten piston, valves and compression chamber up some. Havent located machine shop that works on cycles yet so ordered upper end rebuild kit containing cylinder and new piston and gaskets and cleaned up other components. Lapped valves. Seemed ok but leaking compression on intake valve. So, orded cylinder head which I thought was for 1978 . This included valves, springs, and camshaft etc... first we noticed camshaft not the same. Rest of it looks ok or same. Discovered it must be a pre 1976 head which although it is a split 2 piece head it used contact points instead of the cdi pulse generator we have. So the shaft is shorter. Cant put in my old somewhat worn camshaft because the journals and bearings and cap cover etc are different. I have not seen any heads specifically for my year model online so cant just order right one and resale other. Also i have new valves for mine since seller would not confirm if valves were included. Seller also has not responded about this not fitting. So the question is:? Do I 1: order parts to convert to points ignition?? Dont want to and may be unexpected complications. 2: see if new head can be machined to except my original cam? Or new cam shaft extended further? 3: get original head machined, valve job , new guides and seals and new oem valves installed etc.. . Note suspect new parts are chinese but suspect if i can find someone willing to do this it would cost much more than new parts. 4: try to do a diy valve job and guide replacement? Have never done this and do not have tools.?? Thank you sooooo much for any advice or info!!
  4. Hi. Can somebody please help me to find a spare part thats not listed as a separate part? It is for a Husqvarna TE450, 2007. The part I'm talking about is the clamp that holds the bearing on the camshaft. It's formed like an U, and it is only listed together with a complete cylinder head. Not as a separate part. But its crazy to have to buy a whole new cylinder head just to fix this! Does any angel out there have any idea how to find one? Maybe from a blown engine or something?
  5. So I made huge rookie mistake yesterday. I'm rebuilding my xr400 after engine failure (blown piston). I got my top end all disassembled. I figured it was time to get the parts all cleaned up. Here's where I made the stupid mistake. I had some purple power laying around in the garage and figured it would be a good cleaner for my parts. I took a wash bucket and filled it with some purple power and diluted it with water. I took my top end parts and placed them in the bucket and let them sit overnight. I now know that was a huge mistake. I pulled the parts out and they actually didn't look half bad but when I pulled my cylinder head out the smooth aluminum surfaces all turned a matte black color. SOAB! The surface is now rough to the touch. I'm so upset and I just don't know what to do from here. So my questions is, is there anything I can do to combat this? I figured I can machine surface the bottom side, which I have to do anyways, but what about the top? Is there any way to clean/machine the cam journals and the valve spring seats? Or is this thing toasted? I don't know what to do, any help is appreciated, thanks.
  6. I have a 2002 cr250 2 stroke that recently blew up. i believe it was due to low octane fuel and extended periods of holding it wide open. Mill tech already replated my cylinder, redid the power valves, and sent me a new piston with gaskets but i was wondering if i can reuse this cylinder head if i really clean it up. Any advice would be appreciated. I can buy a new cylinder head for about $85 if needed. i would like to reuse this one but i already have $600 into the top end by sending it to millennium and the parts alone so i suppose another $80 wouldn't be too bad. pic of cylinder head attached.
  7. I just bought a 1982 XL500R to restore (famous first words). I've got it all in pieces now, top end apart, and I found an unexpected issue (famous last words). The camshaft is significantly worn down and there is a bunch of metal buildup on the cylinder head journals where the end of the camshaft sits. Am I SOL or is this something a machine shop can fix? I fully expect to have to get a new camshaft, but the cylinder head/valves are a bit more expensive and harder to track down so I'm hoping its salvageable. It looks to mee like the metal has built on the journals up from the camshaft, not worn down the journals so I'm hoping that's a good thing. Thanks for the help!
  8. First i want to thank everyone for their input into the vast amount of knowledge that can be found on this site. It makes life a bit easier and interesting for people like me. MY question is about fitting a ltz400(or klx400)cylinder head onto a drz400. I've searched the forum quite a bit and need to be sure a couple of things. 1. I've read that the ltz400 head is a direct fit for the drz but i would need to plug the manual decomp if i'm putting the cylinder head on a drz400s model. How exactly is this done?I'm assuming the ltz400 head has manual decomp 2.If i were to buy a ltz400 head to put onto a drz400s, would it make a difference whether i bought the assembly parts (cams,valves,shims,springs,etc) for the drz or for the ltz? 3.I've read that the klx400 head is a direct fit also. Is there a specific year klx400 that only fits? Thanks in advance for the responses!
  9. I am new to the forums and did not see anywhere on the page that has a list of used parts by forum members. I apologize if I am posting in the wrong place. As the title says, I am looking for a cylinder head. Can anyone point me in the right direction on where to find one? Mine dropped a valve. Its for a 2005 KX250F
  10. Sorry if this is not the right forum to post this, but I've recently started taking apart the top end on my 2008 ktm exc-r 450. I was able to loosen 3 out of the 4 bolts that hold the cylinder head on and when I got to the last one (front right shown in the picture) the inside rounded out. As you can see from the picture its pretty close to the side of the engine so nothing can fit around the outside of it. I tried using a star-head to get a little more grab on the inside of the bolt head but no luck. I'm trying to figure out what my options are before I make anything worse. I've been told I could cut the bolt head off, but if I do wont the threads inside still be holding the cylinder head down?? Maybe a stupid question, since from looking on the oem parts finder it looks like the threads dont start until their into that bottom part of the engine. I've also head of tack welding a bolt on top to remove it, but not sure how hard thatd be to do with such little space. Are there any other tools or tricks to getting this thing out before resorting to those last ditch efforts?