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  1. Lanpoop
    Post

    Poor gas mileage, not sure what else to check

    Ok another update. I got all the internals swapped and finally got it running decently. My butterfly’s could be set better but it’s pretty good....
    Post by: Lanpoop, May 3, 2024 in forum: XJ Technical Chat
  2. Lanpoop
    Post

    Poor gas mileage, not sure what else to check

    So I do have an update. I bought the set of carbs and they were pure virgin carbs! The idle mixture screws were still covered. 2 things I found...
    Post by: Lanpoop, Apr 26, 2024 in forum: XJ Technical Chat
  3. Lanpoop
    Post

    Poor gas mileage, not sure what else to check

    I’m buying another carb set tomorrow that is stock. I’ll be swapping emulsion tubes and needles since it’s a low mileage bike, but I believe mine...
    Post by: Lanpoop, Apr 24, 2024 in forum: XJ Technical Chat
  4. Lanpoop
    Post

    Poor gas mileage, not sure what else to check

    I just ordered a paper filter for it just in case. I’ve found that one mixture screw has a broken tip but nothing left in the carbs which is nice....
    Post by: Lanpoop, Apr 22, 2024 in forum: XJ Technical Chat
  5. Lanpoop
    Post

    Poor gas mileage, not sure what else to check

    I’ve plated with it quite a bit on mopeds and I’ve gotten them to run quite nicely just by adjusting the float. That is only one float though....
    Post by: Lanpoop, Apr 20, 2024 in forum: XJ Technical Chat
  6. Lanpoop
    Post

    Poor gas mileage, not sure what else to check

    I believe so. I’ll have to double check the numbers. At least they are all non-resistor plugs haha
    Post by: Lanpoop, Apr 19, 2024 in forum: XJ Technical Chat
  7. Lanpoop
    Post

    Poor gas mileage, not sure what else to check

    Stock jets, 40 and 110. I believe the other 4 or so are stock too. The bike only needs a bit of choke to start and idle so I know it’s a tad rich...
    Post by: Lanpoop, Apr 19, 2024 in forum: XJ Technical Chat
  8. Lanpoop
    Post

    Poor gas mileage, not sure what else to check

    Just noticed that too. I’ve got no clue. Will be changing them all after going through the bike.
    Post by: Lanpoop, Apr 19, 2024 in forum: XJ Technical Chat
  9. Lanpoop
    Thread

    Poor gas mileage, not sure what else to check

    Hello! First of all it’s good to be back! I sold my ‘80 xj650 3 years ago but just bought back the same one! It was abandoned in a storage unit so...
    Thread by: Lanpoop, Apr 18, 2024, 21 replies, in forum: XJ Technical Chat
  10. Lanpoop
    Thread

    Fork Swap From CB760?

    My friend just got a 1973 Honda CB750 the other day and it came with a few modifications like a fork from another bike. He wants to return it to...
    Thread by: Lanpoop, Feb 24, 2021, 2 replies, in forum: XJ Technical Chat
  11. Lanpoop
    Thread

    Broken Gauge Cover Glass

    I was getting ready to put away my 1980 xj650 maxim after letting it cool, and noticed that the tachometer glass lens was smashed in. Probably one...
    Thread by: Lanpoop, Feb 2, 2021, 1 replies, in forum: XJ Technical Chat
  12. Lanpoop
    Post

    Not Firing on 1 and 2 Usually

    Okay. I was hoping I didn't have to spend money on one of those, but using your logic, it sounds like a good investment. I could even charge to...
    Post by: Lanpoop, Jan 19, 2021 in forum: XJ Technical Chat
  13. Lanpoop
    Post

    Not Firing on 1 and 2 Usually

    Ahh ok. I have one gauge, so I will use that to perform the vacuum synch. Ill update once I have finished checking the carbs, and have done a synch.
    Post by: Lanpoop, Jan 19, 2021 in forum: XJ Technical Chat
  14. Lanpoop
    Post

    Not Firing on 1 and 2 Usually

    1 and 2 are running fine now and are getting fuel on idle as well as when I accelerate. The bike sounds great idling when it idles at 1k rpm. All...
    Post by: Lanpoop, Jan 19, 2021 in forum: XJ Technical Chat
  15. Lanpoop
    Post

    Not Firing on 1 and 2 Usually

    Yes. I checked, and re-shimmed those a few weeks ago. Since then, I've probably only ridden <200 miles so they should still be good. The plug...
    Post by: Lanpoop, Jan 19, 2021 in forum: XJ Technical Chat
  16. Lanpoop
    Post

    Not Firing on 1 and 2 Usually

    that misfiring issue was fixed with a second carb cleaning. I am now wondering why it stutters once the bike is hot, and why the plugs are...
    Post by: Lanpoop, Jan 19, 2021 in forum: XJ Technical Chat
  17. Lanpoop
    Post

    Not Firing on 1 and 2 Usually

    Yes I sprayed carb cleaner through the tiny passages. Everything seemed clear. I will spray them again just to make sure. I was unable to get...
    Post by: Lanpoop, Jan 19, 2021 in forum: XJ Technical Chat
  18. Lanpoop
    Post

    Not Firing on 1 and 2 Usually

    Sorry, That’s what I did. I completely tore them down, replaced throttle shaft seals, cleaned every nook and cranny. Then threw them in my...
    Post by: Lanpoop, Jan 19, 2021 in forum: XJ Technical Chat
  19. Lanpoop
    Post

    Not Firing on 1 and 2 Usually

    Update: cleaned the carbs, fixed most issues with the bike. It was running super rich in 3 and 4. I got 3 to be better, 1 and 2 are lean, and 3 is...
    Post by: Lanpoop, Jan 18, 2021 in forum: XJ Technical Chat
  20. Lanpoop
    Post

    Rebuilding the Yamaha Vacuum Fuel Valve w/pics

    I just finished building my leaky petcock, after ordering a rebuild kit. I should have ordered from from xj4ever... but using some permatex...
    Post by: Lanpoop, Jan 8, 2021 in forum: XJ DIY How-To Instructions
  21. Lanpoop
    Post

    Service manual, shim pool, and missing brake dust boot questions

    You are right. That is a better deal and I have no idea why I didn’t just use that. I will use this system next time I check the shims...
    Post by: Lanpoop, Dec 30, 2020 in forum: XJ Technical Chat
  22. Lanpoop
    Post

    XJ650 Seca 1980 Not working right part 2

    I have a similar problem with mine. Cylinder 1 just never fired no matter where the mixture screw was. I think it turned out to be a clogged jet...
    Post by: Lanpoop, Dec 29, 2020 in forum: XJ Technical Chat
  23. Lanpoop
    Post

    XJ650 PILOT JET QUESTION

    The previous owner of mine rejected them for Colorado. I believe they are either 41s or 43.... I think 41. But before you reject it clean the...
    Post by: Lanpoop, Dec 26, 2020 in forum: XJ Technical Chat
  24. Lanpoop
    Post

    Not Firing on 1 and 2 Usually

    I just got 4 new plugs in today and will test them out tomorrow. They all showed 0 ohms of resistance this time, and hopefully they are good to go...
    Post by: Lanpoop, Dec 8, 2020 in forum: XJ Technical Chat
  25. Lanpoop
    Thread

    Not Firing on 1 and 2 Usually

    Like the title says, my 1980 xj650 maxim is not firing on cylinders 1 and 2 all the time. It goes in and out intermittently, but it just really...
    Thread by: Lanpoop, Dec 8, 2020, 23 replies, in forum: XJ Technical Chat
  26. Lanpoop
    Post

    Service manual, shim pool, and missing brake dust boot questions

    Thanks for the manuals!! I just decided to order some shims because the shop gave me a really good deal on them. But If any are out of tolerance I...
    Post by: Lanpoop, Dec 8, 2020 in forum: XJ Technical Chat
  27. Lanpoop
    Post

    Service manual, shim pool, and missing brake dust boot questions

    I just decided to order them since the shop I went to gave me a pretty good deal on them. Once I re measure the valves I will see which ones are...
    Post by: Lanpoop, Dec 8, 2020 in forum: XJ Technical Chat
  28. Lanpoop
    Post

    Service manual, shim pool, and missing brake dust boot questions

    Yeah that's what I meant haha. I removed the cover and found every single shim was 2.60mm. And one was in tolerance.
    Post by: Lanpoop, Dec 8, 2020 in forum: XJ Technical Chat
  29. Lanpoop
    Thread

    Service manual, shim pool, and missing brake dust boot questions

    Hello, this is my first post and I had a few questions about my bike. I just got a 1980 XJ650 Maxim from a guy off of Craigslist. I did all the...
    Thread by: Lanpoop, Dec 3, 2020, 18 replies, in forum: XJ Technical Chat
Showing results 1 to 29 of 29
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