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  1. bigfitz52
    Post

    82 XJ550 Maxim Running Lean

    How about slow down and take things in order? Replacing throttle shaft seals in Mikunis is a bit of a major project, and while I'm not going to...
    Post by: bigfitz52, Sep 15, 2020 in forum: XJ Technical Chat
  2. bigfitz52
    Post

    83 Seca 900 bogs down.

    I just took the time to read this whole thread. Starting with "he (PO) barely rode the bike for the last 15 years" and amongst all of the...
    Post by: bigfitz52, Sep 14, 2020 in forum: XJ Technical Chat
  3. bigfitz52
    Post

    What did you do to your Yamaha today?

    Secas come in many flavors; what did you find?
    Post by: bigfitz52, Sep 14, 2020 in forum: XJ Technical Chat
  4. bigfitz52
    Post

    XJ550 seca cowling refurb

    Not quite. The '81~'83 550 Secas were mechanically the same; but for 1983 Yamaha got rid of the cafe fairing (cowling.) That thing was only...
    Post by: bigfitz52, Sep 12, 2020 in forum: XJ Technical Chat
  5. bigfitz52
    Post

    1981 XJ550 Maximum problem

    Ummm, no, it doesn't. This is a 550, there is nothing behind the shifter cover other than the front sprocket, the neutral light switch, and...
    Post by: bigfitz52, Sep 12, 2020 in forum: XJ Technical Chat
  6. bigfitz52
    Post

    WHAT MODEL ARE XJ550 MAXIM CARBS?

    Man, I am getting old, that one blew right past me. The XJ550 Maxim has Mikuni BS28 carbs. The float levels should be wet set as above, 2mm...
    Post by: bigfitz52, Sep 10, 2020 in forum: XJ Technical Chat
  7. bigfitz52
    Post

    WHAT MODEL ARE XJ550 MAXIM CARBS?

    That is a "dry-set" STARTING MEASUREMENT. They need to be WET-SET, per the manual, to operate properly.
    Post by: bigfitz52, Sep 9, 2020 in forum: XJ Technical Chat
  8. bigfitz52
    Post

    What did you do to your Yamaha today?

    I replaced my headlight bulb, with a proper "antivibratory" bulb, a PIAA 70456. (The bike already has an H4 Halogen "modular" headlight...
    Post by: bigfitz52, Sep 9, 2020 in forum: XJ Technical Chat
  9. bigfitz52
    Post

    Gas vapor issue

    If you don't want to work on bikes anymore, owning a 38-year old motorcycle is not the way to go. Virtually all new street bikes are fuel...
    Post by: bigfitz52, Sep 9, 2020 in forum: XJ Technical Chat
  10. bigfitz52
    Post

    Idle temperature

    Not to that extreme, no. Thankfully, it would probably stall after 10 min or so. But you won't hurt it. Idling for an extended period of time...
    Post by: bigfitz52, Sep 6, 2020 in forum: XJ Technical Chat
  11. bigfitz52
    Post

    Be The Bunny! Safe riding and motorcycle survival thread

    ***SEASONAL REMINDER*** Check the air in your tires before every ride! Here in SE Michigan we've been seeing mid-40 degree temps overnight with...
    Post by: bigfitz52, Sep 6, 2020 in forum: Hangout Lounge
  12. bigfitz52
    Post

    Leaky Petcock after rebuild xj650

    I'd recommend another oil change after a couple hundred miles. Also, keep in mind that a drippy petcock alone won't fill your crankcase with gas,...
    Post by: bigfitz52, Sep 6, 2020 in forum: XJ Technical Chat
  13. bigfitz52
    Post

    How to remove rotor and cylinder studs on xj750 seca '82?

    Well, shouldn't anyway. There isn't anything on an XJ that an 18" or 24" breaker bar won't make short work of, so an impact wrench is more of a...
    Post by: bigfitz52, Sep 6, 2020 in forum: XJ Technical Chat
  14. bigfitz52
    Post

    How to remove rotor and cylinder studs on xj750 seca '82?

    Looks like you figured it out? The 550 uses the same or a similar tool, there is a picture of the tool in the manual as well as a picture of it...
    Post by: bigfitz52, Sep 5, 2020 in forum: XJ Technical Chat
  15. bigfitz52
    Post

    Recurring payment

    Gee, "only" 350%? When I returned from the void, it said mine was 2440% full, I felt kind of proud like it might have been a record or something....
    Post by: bigfitz52, Sep 5, 2020 in forum: Other
  16. bigfitz52
    Post

    Gas vapor issue

    I'm not buying it's ONLY gas vapor venting from the tank. Or carbs via their vents. There is another issue somewhere; either a balky float or...
    Post by: bigfitz52, Sep 5, 2020 in forum: XJ Technical Chat
  17. bigfitz52
    Post

    No Spark

    There are often marginal or cold-soldered connections, or corrosion can occur. Sometimes the units just get flaky once warm, with no signs of...
    Post by: bigfitz52, Sep 5, 2020 in forum: XJ Technical Chat
  18. bigfitz52
    Post

    leaking fork questions

    Genuine Yamaha seals are still readily available, as are good quality aftermarket. Talk to Chacal. Carefully examine the fork tube for pitting...
    Post by: bigfitz52, Sep 5, 2020 in forum: XJ Technical Chat
  19. bigfitz52
    Post

    Oil filter direction

    Yes, "FRONT" marked on any part generally indicates "front of bike" not you holding it in your hand. If you look at the 'stack' carefully, you'll...
    Post by: bigfitz52, Sep 5, 2020 in forum: XJ Technical Chat
  20. bigfitz52
    Post

    Stuck castle nut on front AND rear axle

    if by "stock Yamaha wrench" you're referring to the joke that came in the tool kit, it won't work period. You need a SIX POINT socket and a...
    Post by: bigfitz52, Sep 4, 2020 in forum: XJ Technical Chat
  21. bigfitz52
    Post

    All I think about now is riding:0

    So after everything you've been through you're just now checking your valve clearances? The bucket gets firmly pushed up by the valve/spring. If...
    Post by: bigfitz52, Sep 4, 2020 in forum: XJ Technical Chat
  22. bigfitz52
    Post

    simple valve adjustment question

    Do NOT attempt to "tighten down" the valve cover bolts, even slightly. Once they stop they do not go any further; exceeding the max recommended...
    Post by: bigfitz52, Sep 4, 2020 in forum: XJ Technical Chat
  23. bigfitz52
    Post

    Oil filter direction

    "Not too tight" = 11 ft/lb (132 in/lb) "too tight" being open to wide interpretation...
    Post by: bigfitz52, Sep 4, 2020 in forum: XJ Technical Chat
  24. bigfitz52
    Post

    Getting stuck backing up

    How about some diagnosing here? Get the bike on its centerstand on a hunk of plywood so with a helper on the seat you can raise the front wheel...
    Post by: bigfitz52, Sep 3, 2020 in forum: XJ Technical Chat
  25. bigfitz52
    Post

    Leaky Petcock after rebuild xj650

    That seat looks much better than it did. There is no benefit to greasing the o-ring, it will just get washed clean anyway as gas flows past it....
    Post by: bigfitz52, Aug 31, 2020 in forum: XJ Technical Chat
  26. bigfitz52
    Post

    XJ650RJ Seca Timing Question

    Stop and think about this for a sec. It's a four stroke motor, which means two revolutions of the crank are required for one complete ignition...
    Post by: bigfitz52, Aug 31, 2020 in forum: XJ Technical Chat
  27. bigfitz52
    Post

    Good information on Pods vs Airbox

    Here's something else to take under consideration: the original Yamaha carb-to-airbox boots are actually VELOCITY STACKS you just can't tell...
    Post by: bigfitz52, Aug 30, 2020 in forum: XJ Technical Chat
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