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  1. MarkArbroath
    Thread

    XJ650 Front wheel assembly

    Folks, Item 7 on the drawing below is a small cupped washer, my question is which way should it be fitted? Should the inner diameter sit on the...
    Thread by: MarkArbroath, Sep 14, 2024, 0 replies, in forum: XJ Technical Chat
  2. MarkArbroath
    Thread

    Wanted UK XJ650 Seat or seat pan

    Folks, looking for a seat or seat pan for a UK XJ650 (hinged seat). Will be adapting and recovering the seat so any condition considered, cheaper...
    Thread by: MarkArbroath, Aug 26, 2024, 0 replies, in forum: For Sale, Trade/Swap, Wanted
  3. MarkArbroath
    Post

    XJ650 carbs, overhauled, for sale UK

    NOW SOLD
    Post by: MarkArbroath, Feb 7, 2024 in forum: For Sale, Trade/Swap, Wanted
  4. MarkArbroath
    Thread

    XJ650 carbs, overhauled, for sale UK

    Set of carbs for XJ650, fully overhauled including all new diaphragms professionally fitted by NRP carbs in UK. Spare jets and original internals...
    Thread by: MarkArbroath, Jan 22, 2024, 1 replies, in forum: For Sale, Trade/Swap, Wanted
  5. MarkArbroath
    Post

    1980 XJ650 hand built café racer

    Ha ha, I’ll be ok, it has a little baffle stuck in the end of the pipe. Doesn’t do much but if somebody does look in the end at least it doesn’t...
    Post by: MarkArbroath, May 27, 2023 in forum: XJ Modifications
  6. MarkArbroath
    Thread

    XJ650 UK side panels and tail piece

    Side panels and tail piece off a 1980 UK XJ650 Obviously will need a paint but solid, no cracks or damage, and all fasteners intact. £55 including...
    Thread by: MarkArbroath, May 23, 2023, 0 replies, in forum: For Sale, Trade/Swap, Wanted
  7. MarkArbroath
    Post

    1980 XJ650 hand built café racer

    Thanks
    Post by: MarkArbroath, May 14, 2023 in forum: XJ Modifications
  8. MarkArbroath
    Post

    1980 XJ650 hand built café racer

    Sorry no idea of weight. Battery is under the seat hump, fitted a smaller Lithium battery - physically smaller but enough power to turn her over
    Post by: MarkArbroath, May 14, 2023 in forum: XJ Modifications
  9. MarkArbroath
    Post

    1980 XJ650 hand built café racer

    Wasn't a big bore just went .75mm oversize to clean up the bore. Hand made exhaust was simply a case of cutting the damaged silencer off the...
    Post by: MarkArbroath, May 14, 2023 in forum: XJ Modifications
  10. MarkArbroath
    Post

    Advice. Revs not dropping down during gear changes

    Thanks, i'll try and confirm if she is lean and then shim the needles
    Post by: MarkArbroath, Mar 29, 2023 in forum: XJ Technical Chat
  11. MarkArbroath
    Post

    Advice. Revs not dropping down during gear changes

    Thanks Bryce, all comments appreciated.
    Post by: MarkArbroath, Mar 28, 2023 in forum: XJ Technical Chat
  12. MarkArbroath
    Post

    Advice. Revs not dropping down during gear changes

    Thanks Bryce, Interesting theory about running lean at higher revs. Getting a needle with a different taper might be difficult but I do have a set...
    Post by: MarkArbroath, Mar 28, 2023 in forum: XJ Technical Chat
  13. MarkArbroath
    Post

    Advice. Revs not dropping down during gear changes

    Thanks, new intake rubbers and new throttle shaft v rings when carbs were rebuilt. Pretty confident this isn't the issue but thanks for the...
    Post by: MarkArbroath, Mar 27, 2023 in forum: XJ Technical Chat
  14. MarkArbroath
    Post

    1980 XJ650 hand built café racer

    Thanks, appreciate the comments
    Post by: MarkArbroath, Mar 27, 2023 in forum: XJ Modifications
  15. MarkArbroath
    Thread

    1980 XJ650 hand built café racer

    Folks, A few pics of my XJ650 that I just built from the remnants of two bikes. First time trying any fibreglass work (seat unit). Chopped the...
    Thread by: MarkArbroath, Mar 26, 2023, 11 replies, in forum: XJ Modifications
  16. MarkArbroath
    Post

    Advice. Revs not dropping down during gear changes

    Yes rolling off the throttle and as far as I can tell throttle is snapping back. When sitting ticking over I can blip the throttle and revs drop...
    Post by: MarkArbroath, Mar 26, 2023 in forum: XJ Technical Chat
  17. MarkArbroath
    Thread

    Advice. Revs not dropping down during gear changes

    Guys, looking for some pointers to a little carb problem. When running (once my bike is warmed up) I have an issue where the revs are not dropping...
    Thread by: MarkArbroath, Mar 26, 2023, 13 replies, in forum: XJ Technical Chat
  18. MarkArbroath
    Post

    XJ650 jetting / mods for pod filter and 4-1

    Perfect, thank you. The penny has just dropped for me! I now understand when you say the ‘v on the outside’ when you mention the true shape of the...
    Post by: MarkArbroath, Jan 7, 2023 in forum: XJ Modifications
  19. MarkArbroath
    Post

    XJ650 jetting / mods for pod filter and 4-1

    Mezzmo, you say ‘v on the outside’ and ‘seal faces out’. Does this mean open part of v seal to the outside and pointed end towards the inside of...
    Post by: MarkArbroath, Jan 6, 2023 in forum: XJ Modifications
  20. MarkArbroath
    Post

    XJ650 jetting / mods for pod filter and 4-1

    No, had to order from EU as per name on packet in the video
    Post by: MarkArbroath, Jan 6, 2023 in forum: XJ Modifications
  21. MarkArbroath
    Post

    XJ650 jetting / mods for pod filter and 4-1

    Melnic, Yes, wasn't the best drawing(!), I maybe should have explained it a little better. The triangles on my drawing are meant to represent a...
    Post by: MarkArbroath, Jan 5, 2023 in forum: XJ Modifications
  22. MarkArbroath
    Post

    XJ650 jetting / mods for pod filter and 4-1

    Mezzmo, A quick question about the V seals on the throttle shafts please. I just want to be 100% certain which way the V seals are inserted it's...
    Post by: MarkArbroath, Jan 4, 2023 in forum: XJ Modifications
  23. MarkArbroath
    Post

    XJ650 jetting / mods for pod filter and 4-1

    thanks Mezzmo, seen your videos, great help.
    Post by: MarkArbroath, Jan 3, 2023 in forum: XJ Modifications
  24. MarkArbroath
    Thread

    XJ650 jetting / mods for pod filter and 4-1

    Folks, Read loads of posts on the issues running these bikes with pod filters and a 4-1 exhaust. However, that’s what I have so I’m looking for...
    Thread by: MarkArbroath, Nov 2, 2022, 13 replies, in forum: XJ Modifications
  25. MarkArbroath
    Post

    XJ650 UK Where to buy over size pistons?

    Thanks
    Post by: MarkArbroath, Nov 22, 2021 in forum: XJ Technical Chat
  26. MarkArbroath
    Post

    XJ650 UK Where to buy over size pistons?

    Thanks David, I did see this earlier but they have contradictory sizes on their website so I initially moved on. I’ve now messaged them to see if...
    Post by: MarkArbroath, Nov 22, 2021 in forum: XJ Technical Chat
  27. MarkArbroath
    Post

    XJ650 UK Where to buy over size pistons?

    Thanks Dan, sound advice. I was hoping somebody would tell me where I can get pattern parts that would make the economics of the work worthwhile....
    Post by: MarkArbroath, Nov 22, 2021 in forum: XJ Technical Chat
  28. MarkArbroath
    Post

    XJ650 UK Where to buy over size pistons?

    Mmm, your the second person to suggest picking up a complete engine....... Only problem is a replacement engine might be no better than mine!!!...
    Post by: MarkArbroath, Nov 22, 2021 in forum: XJ Technical Chat
  29. MarkArbroath
    Post

    XJ650 UK Where to buy over size pistons?

    Thanks Franz
    Post by: MarkArbroath, Nov 22, 2021 in forum: XJ Technical Chat
  30. MarkArbroath
    Post

    XJ650 UK Where to buy over size pistons?

    Franz, yes, unfortunately compression away down. Bit of scoring and water marks (engine had sat around for a long time before I bought it) and...
    Post by: MarkArbroath, Nov 22, 2021 in forum: XJ Technical Chat
  31. MarkArbroath
    Thread

    XJ650 UK Where to buy over size pistons?

    Looking at re-boring my 1980 UK XJ650 but I can't see anywhere that sells over size pistons with most internet sites saying 'no longer...
    Thread by: MarkArbroath, Nov 22, 2021, 18 replies, in forum: XJ Technical Chat
Showing results 1 to 31 of 31
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