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cylinder head

  1. Wanted: WANT XR400 Head

    For Sale / Wanted
    Wanted xr400r cylinder head please UK
  2. Wanted: NX650 cylinder head, countershaft, gear linkage shaft

    For Sale / Wanted
    Hi, I am looking to source a NX650 cylinder head with no exhuast studs snapped off in it! Also need a countershaft as the splines on mine are gone and likewise for the gear lever shaft. Thanks, Chris.
  3. XR/NX650 Head wanted.

    Dominator / FMX
    Hi Folks, I`m building up an XR650L and am in need of a usable cylinder head, is there anybody out there who can help, this is an air cooled engine, I don't have year for it. Cheers, Dirtrideralan.
  4. slr 650 carb mod

    Dominator / FMX Help needed please I have seen this carb mod on a SLR650 it is perfect for what I am looking to achieve on my hybrid. the manifold is angled from the cylinder head and is embossed MH MAK E1 Anyone...
  5. thread pitch

    Dominator / FMX
    can someone please confirm the metric thread pitch I need when recovering cylinder head threads are they m6 x1.25? what other sizes do I need if I want to clean up all the other screw threads thankyou
  6. Removing decomp assembly

    I never use the decomp on my 2003 xr400 so I plan to remove it. Question is can I just take out cable and lever etc and just leave the mechanism on the cylinder head or do I need to remove that ask Also? Cheers
  7. Wanted: 1998 RD07A rear cylinder head

    For Sale / Wanted
    Ideally I'd like a complete rear cylinder head, must be mechanically sound. At the very least I need the cylinder head, cam shaft and cam shaft holders. I've been looking for a few weeks so any help would be appreciated.
  8. 2002 xr250r

    Can anyone tell me how much trouble it will be to pull the top of the cylinder head off of this xr250?? I need to look at the exhaust valves. I believe one is stuck open because I am not getting any compression.. Thanks.
  9. Replacing valve stem seals

    Africa Twin
    Hi, my RD04 has begun to consume oil more than 1 liter per 1000kms at 120000 kilometers. It runs normally and idles ok. I suspect valve stem seals are about to expire. Is it possible to replace seals without removing cylinder heads (and engine)? I have an air pressure tool that can keep...
  10. DESPARATE,Exhaust stud depth

    Dominator / FMX
    i have tried all the options suggested to me in my last post on 'removeing exhaust studs'and they did'nt move a ****ty bit.i have got my grinder on the go and got them flush with the cylinder head.i centre punched the first and went from 2mm upto 6mm in .5mm increments.the new exhaust studs look...
  11. snapped exhaust studs

    Dominator / FMX
    hi all.i have a dilema.whilst removeing the header pipes yesterday i snapped 3 of the 4 exhaust studs.there is about 10mm of thread on each stud still showing on the cylinder head.i have tried molegrips with no luck and there is not enough thread to do the 'double nut technique'.has anyone used...
  12. Wanted: Wanted - xr600 head to fit 1988

    For Sale / Wanted
    Is there any chance anyone has a cylinder head to fit a 1988 xr600 . I've just tried to regrind the valves only to find that one of the valve seats is chipped around the edges:( All the parts list I can find list mine as a 1988 to 1992 so not sure if a later one will fit? perhaps someone will...
  13. I have to sell my beloved 280 :( and a pile of bits. Any ideas on value?

    Hi chaps, Ive just returned from a 13 month holiday and the bank balance is looking very sad indeed. This means that (unfortunately) im going to have to part with my baby. What i would like from your well informed selvs is an opinion on the value. Its a 2001 Model which i gave a serious...
  14. Timing set up problems! XRV750 RD04

    Africa Twin
    I have just replaced the pistons on my RD04 XRV750. I set up the timing using the FT mark in the crank case peep hole and then tried to get the two dots on each camshaft gear to line up exactly with the top of the cylinder block. This was not possible and I have ended up with the two dots...
  15. 1985 xl600lmf cylinder head?

    Hi there, I'm pretty new to the world of bikes with engines but recently got a xl600lmf. I bought it with an engine fault and have now found that the cylinder head is cracked. After looking on websites and forums it sounds like a XR head is what I need but I'm still not sure? I've found a '86...
  16. Fuel tap thread question: PD06 Transalp/ RD04 Africa Twin

    Hi guys Hope someone can help. Without going into the whole story, I’m looking to replace my 1987 Pd06 Transalp fuel tap from the oem one with the stupid (IMHO) vacuum hose attachment (that magically turns the fuel off when it wants to… not when I want to, and hence my bike stops when I don’t...
  17. transalp project cylinder head/camshaft

    I've recently bought a transalp (1990 600) project with a front cyl top end noise, Its turned out to be camshaft thats shot and cam journals, so needs a new head and cam couple of questions, firstly can the head be removed with the engine in the frame? and is it likely that the oil pump has...
  18. building custom nx650

    Dominator / FMX
    hi... new member here from athens i got a rd08 nx and im planning to build an oldschool scrambler out of it i have some questions i rebuilt the motor,high-comp piston,fcr and had my cylinder head done im thinkink of changing my exhaust system,what do you recon?!....should i go for a full...
  19. quick engine question guys

    Africa Twin
    Just a quick question, if there was a crack or a leaking gasket in the cylinder head would that cause the engine rev's to rise when warm and on tick over? or is it more likely to be gunk in the carbs?
  20. Cylinder head back on - advice please

    Dominator / FMX
    I fetched the cylinder head for my SLR650 back from SEP. They're good but not overly quick... It has had new exhaust valve guides and a snapped exhaust stud spark eroded out. They did a cracking job and the build up of the head and re-assembly of the bike took about 5 hours. It was pretty...