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  1. NX650 camshaft on FMX650 question

    Dominator / FMX
    Hello! The decompession cam on my FMX is gone toast, it rattles when the engine is cold. I found a good NX650 camshaft, will it fit with no problems? Has anyone done this? What other things should be modified/adjusted? Valve clearances after the change? Should I readjust the carburetor? Will it...
  2. New member saying Hi

    I'd like to introduce myself....................
    Ladies and Gentlemen, New member blackbirdflyer saying Hi to the Honda Trial Bike community. I am rebuilding a Honda XL 500R (1982) and hope that I can benefit from your collective expertise with the project. My machine has suffered a camshaft failure (ouch) and needs a full top end...
  3. Cam chain guide Replacement issue

    Hello from Greece,Im rebuilding my XL600LM (1985-PD04) and i need the GUIDE, CAM CHAIN Part number:14620MK4620 which replaces (14620MG3003, 14620MK4600, 14620MK4601 that older XRs have). The problem is that this part, is no longer available!!!Has anyone tried the NX650 ? i.e.(14620MN9870 Guide...
  4. camshafts

    Africa Twin
    Any differences between xrv 650 and xrv 750 camshaft? I know they have different part numbers, but are they different?
  5. Guidance required on setting correct camshaft timinng after @ RD07A engine rebuild

    Africa Twin
    Hi All, I thought I would ask the forum collective if they have any tips they have for setting the timing correctly on the @ RD07a engine as I am planning my second strip down to fit a brand new output shaft original designed for the Honda Vt750 cruiser. I originally split the cases a few...
  6. Goodies for sale

    Dominator / FMX
    I'm having a bit of a clear out of stock and the following are for sale: FX650 / SLR650 / FMX650 Camshaft, genuine Honda, brand new in box £100 FX650 CDI, tested and proved working, 3 for sale £50 ea. I'm open to offers but I don't want to do any swaps or trades.
  7. Derestricting FX650

    Dominator / FMX
    Hello guys, im quite a new user here. I have bought FX650 recently, checked with official dealer and found out I have 33hp version of the bike. How can I de-restrict it to go them 39hp or even more ? I have heard about mysterious green wire at the CDI or something like that ... any specific...
  8. XR High lift Joy Camshaft for sale on eBay.

    Thought I'd post this up if any XR owner is interested. I would be if I had one :thumbup: Honda XBR 500 Race Camshaft High lift performance Joy camshaft may fit xr 600 Honda XBR 500 Race Camshaft High lift performance Joy camshaft may fit xr 600 | eBay P.S. if in wrong place, please remove...
  9. Does the Spark plug fire on every TDC on Transalp?

    Hi, question regarding camshaft installation and ignition timing: Is it possible to get the Camshaft installed 360 degees wrong or does the transalp fire on every TDC? Given the assumption that the front and rear cylinder are correct installed in relation to each other (Rear (RT) 232 degrees...
  10. Wanted: Honda xl250rc camshaft

    For Sale / Wanted
    hi im after a camshaft for a 1983 xl250rc, must have the pin to drive rpm tacho or atleast the hole to put in my own pin. i have lots of spares and 2 working bottom ends with numbers electrics etc etc. contact me cheers ken
  11. Auto decompression system

    Dominator / FMX
    It is really necessary to instal auto decompression system on camshaft? If I not install it what will happen?
  12. FMX camshaft and auto-decompression mechanism

    Dominator / FMX
    Hello I need to buy new camshaft to my FMX 650 (marking R4). I have destroyed camshaft and also auto-decompression mechanism. Probably it is the same camshaft like in NX650 and XR650L. I found some on US ebay, Hot Cam. Price is very nice but it is aslo a note "Does not use auto-decompression...
  13. Red Loctite and assembly lube??

    Mechanical Advice
    Hi lads! When people talk about Red Loctite, which one are they referring to? I see about 20 different numbers at henkel's website ... I guess what I'm asking is, which Loctites would I need for an full rebuild and for general work on a motorcycle? Also, I saw a video about rebuilding an...
  14. XR 250 noisy topend

    I have a donor engine in my xr250, its from a jap import, engine number md17e. It doesn't have an oil cooler. It is quite noisy from the top end, valve clearance are all ok, I've checked them as per manual. What else could cause the noise, cam chain? Camshaft bearings? Or are these engines just...
  15. camshaft choices

    Dominator / FMX
    My camshaft is pitted so I will have to replace it very soon Should I buy an xr600r hotcam? Are KentCams still in business ? Can I get the cam reprofiled and reground? is it cost effective? What is a reasonable cost of a new camshaft(my bike is an 88 Ro2) Has anyone had dealings with other...
  16. 2003 xr250r camshaft problem

    Hi, i've a little problem with the cam on my xr. On friday on my way to work my engine just cut out, after pushing it five miles home i look at the engine to find my camshaft in two bits!!! It was a hot cam that was about 20 months old. Has anyone else had a problem with hotcams or was this a...
  17. Camshaft, Lobes up or down?

    Dominator / FMX
    Hi, I'm getting the engine back together again and I've set the timing chain to the T mark on the flywheel and the two lines on the cog. I just need to know if there is any way of knowing which way up the camshaft goes? I've checked the manual which makes it look like it doesn't matter which way...
  18. Valve timing

    Mechanical Advice
    Can anyone point me in the direction of some reading material that would explain the intricacies the valve/camshaft timing? I'm after something that would explain the effects of altering the valve timing - ie what effect altering the valve open times would have on the engine's performance I...
  19. Nx650s camshaft help!!

    Dominator / FMX
    Hi, I'm new to this forum and would welcome some help with my wee bike. I'm doing a topend rebuild and am a little confused with my findings? The camshaft appears to have quiet a bit of lateral movement causing some damage to the camshaft location. There is a slot in the cam which would suggest...
  20. Camshaft problems

    Dominator / FMX
    Hello Everyone, have just bought a 1999 Domi and it has problems with camshaft/rocker arms which i am replacing, the camshaft is out on the bench but i cannot remove the assembly at the cam chain end, i think part of it is to do with the decompressor, i have a new cam shaft from David Silver...