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  1. Finnish Cafe
    Post

    82 Yamaha Maxim Head Swap

    If problem with current head is just few threads / bolts it would probably be easier to fix those. Few helicoils in there and you're good to go....
    Post by: Finnish Cafe, Apr 11, 2023 in forum: XJ Technical Chat
  2. Finnish Cafe
    Post

    4bb Engine to 82' 750 Seca frame

    Came back from visiting family today and was greeted by view of Yamaha laying on its side. Ice had melted under center stand and she collapsed to...
    Post by: Finnish Cafe, Apr 9, 2023 in forum: XJ Modifications
  3. Finnish Cafe
    Post

    4bb Engine to 82' 750 Seca frame

    300km test ride to my summer house in middle Finland. Not too warm yet, but Yamaha purrs like kitten. Perfect weather for ice fishing is good...
    Post by: Finnish Cafe, Apr 9, 2023 in forum: XJ Modifications
  4. Finnish Cafe
    Post

    4bb Engine to 82' 750 Seca frame

    Got the cooler lines done too today as I had to go hydraulics store anyway. It was also sunny and +8C so there was no excuse to stay at the...
    Post by: Finnish Cafe, Apr 6, 2023 in forum: XJ Modifications
  5. Finnish Cafe
    Post

    4bb Engine to 82' 750 Seca frame

    Side panels are done, front fork service done, saddlebags with quick release are done, quickly removable rear luggage rack done, rear brake light...
    Post by: Finnish Cafe, Apr 5, 2023 in forum: XJ Modifications
  6. Finnish Cafe
    Post

    DoctorMotorcycle's 100HP TURBO XJ650 Cafe Racer

    That thing looks like it's made as a joke on summer holiday. Original head gasket, no oil cooler, draw through turbo, very questionable way to fit...
    Post by: Finnish Cafe, Mar 30, 2023 in forum: XJ Modifications
  7. Finnish Cafe
    Post

    Coil Help

    At least my Seca has left coil for cyl 1 and 4 and right coil for 2 and 3. I believe that any other orientation is less than perfect, although I...
    Post by: Finnish Cafe, Mar 30, 2023 in forum: XJ Technical Chat
  8. Finnish Cafe
    Post

    4bb Engine to 82' 750 Seca frame

    While back I ordered canvas saddle bags and rear bag for this bike without really considering if and how they would fit with chopped frame and...
    Post by: Finnish Cafe, Mar 27, 2023 in forum: XJ Modifications
  9. Finnish Cafe
    Post

    What did you do to your Yamaha today?

    Did my Secas front end, new seals and oil change. PO had messed up, (what a surprise). left one had one spring washer squashed in the bottom of...
    Post by: Finnish Cafe, Mar 25, 2023 in forum: XJ Technical Chat
  10. Finnish Cafe
    Post

    4bb Engine to 82' 750 Seca frame

    [ATTACH]Some progress with side panel. I narrowed it by 30mm and soda blasted edges to satin matte finish, it's much better now. Still waiting for...
    Post by: Finnish Cafe, Mar 24, 2023 in forum: XJ Modifications
  11. Finnish Cafe
    Post

    4bb Engine to 82' 750 Seca frame

    I like the look of that original finned filter casing and will probably keep it, spin on is easier for service though but that doesn't bother me.
    Post by: Finnish Cafe, Mar 21, 2023 in forum: XJ Modifications
  12. Finnish Cafe
    Post

    4bb Engine to 82' 750 Seca frame

    No, 4bb engines original. Didn't get cooler with bike and needed one for my Triumph too so ordered 2 of these. I'll use original flange and few cm...
    Post by: Finnish Cafe, Mar 21, 2023 in forum: XJ Modifications
  13. Finnish Cafe
    Post

    4bb Engine to 82' 750 Seca frame

    Thx. I would but there's reg/rec and fuse box etc. there, they need some protection from rain. I will cut that cover smaller so it leaves frame...
    Post by: Finnish Cafe, Mar 21, 2023 in forum: XJ Modifications
  14. Finnish Cafe
    Post

    What did you do to your Yamaha today?

    i can assure you that Finnish weather isn't any better, this weeks forecast had every weather sign there is, temps from -14C to +5C, rain, snow,...
    Post by: Finnish Cafe, Mar 14, 2023 in forum: XJ Technical Chat
  15. Finnish Cafe
    Post

    4bb Engine to 82' 750 Seca frame

    Piece of junk aluminium might find its place as a side panel, looks too heavy now but if I come up with something to lighten the look it might...
    Post by: Finnish Cafe, Mar 14, 2023 in forum: XJ Modifications
  16. Finnish Cafe
    Post

    4bb Engine to 82' 750 Seca frame

    https://youtube.com/shorts/-kicwiEnq_I?feature=share took her for a spin. In over 10cm of fresh snow it wasn't long one but maiden voyage anyway....
    Post by: Finnish Cafe, Mar 12, 2023 in forum: XJ Modifications
  17. Finnish Cafe
    Post

    What did you do to your Yamaha today?

    First ride ever on my 750 (now 900) Seca. 100m around the yard, over 10cm fresh snow on the ground and in my shoes but that still counts....
    Post by: Finnish Cafe, Mar 12, 2023 in forum: XJ Technical Chat
  18. Finnish Cafe
    Post

    4bb Engine to 82' 750 Seca frame

    [ATTACH]Slip ons came today. Surprisingly they aren't stupidly loud and have pretty nice low tone and little distortion up high. Fixed oil pipe...
    Post by: Finnish Cafe, Mar 9, 2023 in forum: XJ Modifications
  19. Finnish Cafe
    Post

    4bb Engine to 82' 750 Seca frame

    https://youtube.com/shorts/RNskq86Xr_o?feature=share She's charging now. Had to change alternator rotor, it was only thing charging related that I...
    Post by: Finnish Cafe, Mar 7, 2023 in forum: XJ Modifications
  20. Finnish Cafe
    Post

    Carb boot mount broke off yamaha xj750

    Gaskets from cereal box cardboard eh? Lifetime for those might be limited, even though cellulose doesn't dissolve with gasoline it won't stay in...
    Post by: Finnish Cafe, Mar 6, 2023 in forum: XJ Technical Chat
  21. Finnish Cafe
    Post

    4bb Engine to 82' 750 Seca frame

    It was carb syncing time today. I really don't know how much sync is altered with silencers as there is only 4-2 collector box in place now but I...
    Post by: Finnish Cafe, Mar 5, 2023 in forum: XJ Modifications
  22. Finnish Cafe
    Post

    Iridium Spark Plugs... why or why not?

    That's possible but original problem was never the plugs. If you have working engine with carburators in tune and coils etc in working condition...
    Post by: Finnish Cafe, Mar 4, 2023 in forum: XJ Technical Chat
  23. Finnish Cafe
    Post

    Iridium Spark Plugs... why or why not?

    There's really no reason to use iridium or platinum spark plugs in factory setup carburator engine, though you of course can if you want. Platinum...
    Post by: Finnish Cafe, Mar 4, 2023 in forum: XJ Technical Chat
  24. Finnish Cafe
    Post

    4bb Engine to 82' 750 Seca frame

    That of course didn't work at all. There's not enough space for those pipes at all, I made the hoses longer and locked them in place with 10mm...
    Post by: Finnish Cafe, Mar 3, 2023 in forum: XJ Modifications
  25. Finnish Cafe
    Post

    xj 750 questions

    You certainly won't be turning the engine by hand from rear wheel when it's at 1.st gear. Or 2.nd. You also can't really do a running start either...
    Post by: Finnish Cafe, Mar 3, 2023 in forum: XJ Technical Chat
  26. Finnish Cafe
    Post

    4bb Engine to 82' 750 Seca frame

    Airbox situation. From 32mm to 36mm carbs not only the diameter increases but the spacing for the carbs too because 36mm carbs are larger every...
    Post by: Finnish Cafe, Mar 2, 2023 in forum: XJ Modifications
  27. Finnish Cafe
    Post

    4bb Engine to 82' 750 Seca frame

    Thanks! I have some experience with bike building but it's mostly Triumph efi triple world where I feel at home. But building experience with...
    Post by: Finnish Cafe, Mar 1, 2023 in forum: XJ Modifications
  28. Finnish Cafe
    Post

    4bb Engine to 82' 750 Seca frame

    [MEDIA] And then there was life. Got her running last night, new engine sounds pretty good, no weird noises and responds to throttle nicely....
    Post by: Finnish Cafe, Mar 1, 2023 in forum: XJ Modifications
  29. Finnish Cafe
    Post

    4bb Engine to 82' 750 Seca frame

    Throttle cable is mounted differently in 900 engines Mikuni BS36 than 750 engines original Hitachis, so I had to build new mount from zero. I...
    Post by: Finnish Cafe, Feb 26, 2023 in forum: XJ Modifications
  30. Finnish Cafe
    Post

    4bb Engine to 82' 750 Seca frame

    So, engine is in the frame. Tight to squeeze it in but when it's in there it fits to every mounting point as it should. Looks big as it fills the...
    Post by: Finnish Cafe, Feb 23, 2023 in forum: XJ Modifications
  31. Finnish Cafe
    Post

    4bb Engine to 82' 750 Seca frame

    Yeah, and 750 have wider space for cams. It's kinda weird that Yamaha has made so small design changes trough years, as the diversion era 4KM...
    Post by: Finnish Cafe, Feb 21, 2023 in forum: XJ Modifications
  32. Finnish Cafe
    Post

    4bb Engine to 82' 750 Seca frame

    Got some work done today. Blasted engine with 10kg of glass beads, it's still not show quality but it's for the road not the show anyway. I also...
    Post by: Finnish Cafe, Feb 21, 2023 in forum: XJ Modifications
  33. Finnish Cafe
    Post

    4bb Engine to 82' 750 Seca frame

    Got the engine. It's in a bit of rustic condition, bike has probably been stored outside but nothing too crazy. Checked valve clearances first...
    Post by: Finnish Cafe, Feb 16, 2023 in forum: XJ Modifications
  34. Finnish Cafe
    Thread

    4bb Engine to 82' 750 Seca frame

    Few weeks ago I bought this 750 Seca whit blown engine, started wondering what would my choices be for a engine, since I'm not too familiar with...
    Thread by: Finnish Cafe, Feb 15, 2023, 29 replies, in forum: XJ Modifications
  35. Finnish Cafe
    Post

    Checking in

    I have already been there for hours, unbelievable amount of useful information. Carbs just dropped to my workshop today, I think I'll get rebuild...
    Post by: Finnish Cafe, Feb 13, 2023 in forum: Hangout Lounge
  36. Finnish Cafe
    Post

    1981 Yamaha seca 750

    I started on a Triumph t595 Daytona that I still have. Stupid thing to do, it had swapped cams, full racing exhaust, modified airbox and custom...
    Post by: Finnish Cafe, Feb 11, 2023 in forum: Hangout Lounge
  37. Finnish Cafe
    Post

    Checking in

    Will do, thanks Jetfixer. And will sure beg for help here too, I do know basics about carbs and have worked with them on cars but I'm quite sure I...
    Post by: Finnish Cafe, Feb 11, 2023 in forum: Hangout Lounge
  38. Finnish Cafe
    Thread

    Checking in

    Hi First post here, checking in from Finland. I am new to Yamahas, at least bikes. Have had them as outboards before, have a Yamaha piano,...
    Thread by: Finnish Cafe, Feb 11, 2023, 4 replies, in forum: Hangout Lounge
Showing results 1 to 38 of 38
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