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  1. 79xs
    Thread

    Sound of a XJ550 throwing mud.

    Private land 4x4 gathering/party. No music added to the video... just the sound of a XJ ATV throwing mud and getting stuck a few times. [MEDIA]
    Thread by: 79xs, Jun 19, 2016, 1 replies, in forum: Hangout Lounge
  2. 79xs
    Post

    XJ550 Yamaha Blaster ATV

    Some more mods. XJ650 Turbo oil cooler and lines. I'm not 100% sure about that fan, but we will soon find out. [ATTACH] [ATTACH] [MEDIA]
    Post by: 79xs, May 18, 2016 in forum: XJ Modifications
  3. 79xs
    Post

    Width and height of XJ650 Turbo Oil Cooler

    Well.. I didn't have to mod the 650 lines/cooler. [IMG] [IMG]
    Post by: 79xs, May 12, 2016 in forum: XJ Technical Chat
  4. 79xs
    Post

    Width and height of XJ650 Turbo Oil Cooler

    Well all the parts should be here tomorrow. I'll need to figure out a fan+vent system. Anyone have any oil temperatures from their 550s?
    Post by: 79xs, Apr 5, 2016 in forum: XJ Technical Chat
  5. 79xs
    Post

    my new bike... where do I begin?

    A new project is always fun. I always think of this when I bring something new (old) home. [MEDIA]
    Post by: 79xs, Apr 2, 2016 in forum: XJ Technical Chat
  6. 79xs
    Post

    Width and height of XJ650 Turbo Oil Cooler

    So the idea is to just extend the rubber lines, correct? or would they also have fittings that connect directly to the rad cooler? Also, I made...
    Post by: 79xs, Apr 2, 2016 in forum: XJ Technical Chat
  7. 79xs
    Post

    Width and height of XJ650 Turbo Oil Cooler

    I'll do some calling around. I don't know a ton about oil fittings. I'm guessing I would cut the rubber section of the lines and they would...
    Post by: 79xs, Apr 2, 2016 in forum: XJ Technical Chat
  8. 79xs
    Post

    Width and height of XJ650 Turbo Oil Cooler

    It's a 81 XJ550 motor in an ATV. The FJ600 cooler is just too wide to fit anywhere. The 650 cooler will fit between the frame tubes in front of...
    Post by: 79xs, Apr 1, 2016 in forum: XJ Technical Chat
  9. 79xs
    Post

    Width and height of XJ650 Turbo Oil Cooler

    Thanks a bunch. My hope is to use the XJ650 oil lines + cooler on my swap. I'm just not able to fit the FJ600 cooler anywhere within the frame.
    Post by: 79xs, Apr 1, 2016 in forum: XJ Technical Chat
  10. 79xs
    Thread

    Width and height of XJ650 Turbo Oil Cooler

    I'm looking for the width and height of the XJ650 Turbo oil cooler. I found a thread about it, but it only gave the sizes for the 750. Thanks.
    Thread by: 79xs, Mar 31, 2016, 14 replies, in forum: XJ Technical Chat
  11. 79xs
    Thread

    Splicing Oil Lines

    I'm adding a oil cooler to my XJ550 powered ATV. Due to limited space I'm unable to use the stock FJ600 cooler lines as come. I need to add...
    Thread by: 79xs, Mar 29, 2016, 3 replies, in forum: XJ Technical Chat
  12. 79xs
    Post

    Battery Won't Hold Charge... PLEASE HELP

    You are right, I understand what you are saying. What I should have really said is that it's something to check at the same time as volts. Maybe...
    Post by: 79xs, Jan 22, 2013 in forum: XJ Technical Chat
  13. 79xs
    Post

    IGNITION KEY BROKE HALF WAY OFF AND IN THE IGNITION.

    Maybe its just the keys they use at my local hardware store. The end of it is so wide that it allows you to get way too much force on the key.
    Post by: 79xs, Jan 22, 2013 in forum: XJ Technical Chat
  14. 79xs
    Post

    IGNITION KEY BROKE HALF WAY OFF AND IN THE IGNITION.

    I might be called crazy for this... but this is why I buy the 14 dollar yamaha key blanks. It may not have been the problem in this case, but...
    Post by: 79xs, Jan 21, 2013 in forum: XJ Technical Chat
  15. 79xs
    Post

    Battery Won't Hold Charge... PLEASE HELP

    I might write a how-to on this very subject. The very best way to check a charging system in whole is with amps. It allows you to see the...
    Post by: 79xs, Jan 21, 2013 in forum: XJ Technical Chat
  16. 79xs
    Post

    XJ550 Yamaha Blaster ATV

    Thanks for all the comments. Yes, modern quads can be pushing 60HP when tuned up well. Some of the BRPs are pushing 100hp. But they don't...
    Post by: 79xs, Dec 27, 2012 in forum: XJ Modifications
  17. 79xs
    Post

    Final Verdict on All Balls Bearings?

    Thats pretty slick then. Timken does make very good stuff so you lucked out there. I'm not saying you are going to crash and burn if...
    Post by: 79xs, Dec 21, 2012 in forum: XJ Technical Chat
  18. 79xs
    Post

    XJ550 Yamaha Blaster ATV

    Here is a two year update. Please forgive all the pictures.. A lot has changed. I have used this ATV almost every Sunday for the last two...
    Post by: 79xs, Dec 21, 2012 in forum: XJ Modifications
  19. 79xs
    Post

    XJ550. How much oil pressure should I have?

    I got my motor out of a 550 that must have sat outside for more than 10 years. The top covers on the carbs were rusted off. Old grass/leaves had...
    Post by: 79xs, Dec 21, 2012 in forum: XJ Technical Chat
  20. 79xs
    Post

    Final Verdict on All Balls Bearings?

    Stay away from All Balls Racing bearings for on-road use. All they do is source the correct bearings and make kits with them. They are almost...
    Post by: 79xs, Dec 17, 2012 in forum: XJ Technical Chat
  21. 79xs
    Post

    Carb diaphragm problem

    I have used thin coats of gorilla glue to repair small pin holes before. Replacing them is always best in the log run. JBM's prices are pretty good.
    Post by: 79xs, Dec 16, 2012 in forum: XJ Technical Chat
  22. 79xs
    Post

    XJ550. How much oil pressure should I have?

    I had a talk with a friend of mine. Now I understand why I was confused by this. The 14 psi filter bypass is based off differential pressure...
    Post by: 79xs, Dec 12, 2012 in forum: XJ Technical Chat
  23. 79xs
    Post

    XJ550. How much oil pressure should I have?

    I'm going to do some more research on this. I did find a few sites that show as low as 8psi at idle on some modern yamaha bikes. Per another...
    Post by: 79xs, Dec 11, 2012 in forum: XJ Technical Chat
  24. 79xs
    Post

    XJ550 cam swap/aftermarket options

    @pjb03: What is your idle like with the yoshi cams? Also, did you need to mod the pistons to make them clear?
    Post by: 79xs, Dec 10, 2012 in forum: XJ Modifications
  25. 79xs
    Thread

    XJ550. How much oil pressure should I have?

    Does anyone know what oil pressure I should be seeing from a 550? My shop manual says the bypass valve opens at 14psi but that sounds a bit low to...
    Thread by: 79xs, Dec 10, 2012, 9 replies, in forum: XJ Technical Chat
  26. 79xs
    Post

    XJ550 cam swap/aftermarket options

    You bring up some very good points. The specs were listed in the MegaCycleCams catalog. So atleast they were somewhat close.. almost.....
    Post by: 79xs, Dec 5, 2012 in forum: XJ Modifications
  27. 79xs
    Thread

    XJ550 cam swap/aftermarket options

    I'm looking for some serious/expert advice on this. Is anyone using aftermarket cams on a XJ550? Also, has anyone heard of swaping cams...
    Thread by: 79xs, Dec 5, 2012, 7 replies, in forum: XJ Modifications
  28. 79xs
    Post

    82 xj550 simple wiring question...

    Ahh I understand now. I noticed there is a full harness for a 1981 XJ550 on Ebay for 39 bucks with free shipping. I would start with that and...
    Post by: 79xs, Dec 1, 2012 in forum: XJ Modifications
  29. 79xs
    Post

    82 xj550 simple wiring question...

    I would take this guys word for it... Is the current harness in pretty bad shape?
    Post by: 79xs, Nov 30, 2012 in forum: XJ Modifications
  30. 79xs
    Post

    Simple wire harness

    I'm confused here. What was wrong with using stock 550 ignition parts? Based off ebay it looks like you could get the pickups/rotor/Igniter for...
    Post by: 79xs, Nov 30, 2012 in forum: XJ Modifications
  31. 79xs
    Post

    Quick wiring question

    That makes it simple. It's odd what options are mixed between models even within the same year.
    Post by: 79xs, Nov 30, 2012 in forum: XJ Modifications
  32. 79xs
    Post

    Quick wiring question

    It shouldn't matter how they hook up. All three whites will be A/C output off the stator. One may have a splice in it that goes to the headlight...
    Post by: 79xs, Nov 29, 2012 in forum: XJ Modifications
  33. 79xs
    Post

    Don't understand people

    WOW... I did not mean to start a subject highjack! Harley make's a fine product.. its just the SAME product for the last 50 years... I'm 100%...
    Post by: 79xs, Nov 25, 2012 in forum: Hangout Lounge
  34. 79xs
    Post

    Don't understand people

    I know i'm going to get flamed for this, but i'm guessing its someone who "upgraded" to a Harley.... as some folks like to say... then only put...
    Post by: 79xs, Nov 24, 2012 in forum: Hangout Lounge
  35. 79xs
    Post

    Who has xj550 w/mikuni carbs and pods?What jets do you run?

    This might be an old thread, but I thought I would add my 10 cents on this and agree with bigfitz52. I got a 81 XJ550 motor jammed into an ATV...
    Post by: 79xs, Nov 24, 2012 in forum: Hangout Lounge
  36. 79xs
    Post

    XJ550. Oil pressure switch on oil filter housing?

    Thanks for the reply. From looking at photos (i'm stuck at work) that spot on the right side of the head looks to be a blind plug? I'm not...
    Post by: 79xs, Jul 28, 2011 in forum: XJ Modifications
  37. 79xs
    Post

    XJ550 Seca vs Maxim

    Thanks for the info! I'll leave it alone then. I want to say i'm running 115 mains and 37.5 or 40 pilots...Pretty sure its 115/40. I have...
    Post by: 79xs, Jul 28, 2011 in forum: XJ Technical Chat
  38. 79xs
    Thread

    XJ550 Seca vs Maxim

    I have been doing some reading here and noticed that cams and jetting are stated to be the only major motor changes between the 550 Maxim and Seca...
    Thread by: 79xs, Jul 27, 2011, 4 replies, in forum: XJ Technical Chat
  39. 79xs
    Post

    XJ550. Oil pressure switch on oil filter housing?

    Anyone?
    Post by: 79xs, Jul 27, 2011 in forum: XJ Modifications
  40. 79xs
    Post

    Anyone using a Dynatek Rev limiter? (DRL-200, DRL-300)

    I have tried to e-mail Dynatek about this... their online support form bombs out, and their e-mail returns anything and everything as spam....
    Post by: 79xs, Jun 2, 2011 in forum: XJ Modifications
  41. 79xs
    Thread

    Anyone using a Dynatek Rev limiter? (DRL-200, DRL-300)

    Has anyone used one of Dynatek's rev limiters on their bikes? I'm looking to add a DRL-200 to my 550... just wondering if anyone ran into any...
    Thread by: 79xs, Jun 1, 2011, 2 replies, in forum: XJ Modifications
  42. 79xs
    Thread

    XJ550. Oil pressure switch on oil filter housing?

    I installed an XJ550 motor into an ATV last year. I noticed that really hard left turns will make the oil light blink. I was able to fix this by...
    Thread by: 79xs, May 12, 2011, 4 replies, in forum: XJ Modifications
  43. 79xs
    Post

    Homemade Airbox for 550

    Looks pretty good. I have around 2 -2.5 inches of space behind the outter carbs and the frame. The current pods on 1,4 have to bend due to the...
    Post by: 79xs, Feb 26, 2011 in forum: XJ Modifications
  44. 79xs
    Post

    Good news about "pods"

    I'm thinking of buying the same filters. What size were the mains and pilots?
    Post by: 79xs, Feb 26, 2011 in forum: XJ Modifications
  45. 79xs
    Thread

    Homemade Airbox for 550

    I put an XJ550 motor into an ATV frame last summer. I did not have room for the stock airbox so I had to run pods. Due to water and tuning...
    Thread by: 79xs, Feb 25, 2011, 3 replies, in forum: XJ Modifications
  46. 79xs
    Post

    XJ550 Yamaha Blaster ATV

    Its really not that bad. The transmission gearing is all wrong for an ATV though.. gear ratios are too far apart. I was never able to get...
    Post by: 79xs, Dec 4, 2010 in forum: XJ Modifications
  47. 79xs
    Post

    XJ550 Yamaha Blaster ATV

    It's done.. Tank cam video: http://www.youtube.com/watch?v=42SqmJ0rN08 Rideby video: http://www.youtube.com/watch?v=Dr6L1AYvAwQ
    Post by: 79xs, Dec 4, 2010 in forum: XJ Modifications
  48. 79xs
    Post

    Truncated VIN is causing me headaches with the CT DMV

    Good old government... even with computers and the internet they still care about a pice of paper. I never even knew there was a longer vin for...
    Post by: 79xs, Oct 28, 2010 in forum: Hangout Lounge
  49. 79xs
    Post

    carb problem

    I would agree. Adjust the idle when the bike is hot and see how it works out.
    Post by: 79xs, Oct 28, 2010 in forum: XJ Modifications
  50. 79xs
    Post

    planning a wider rear wheel. 82 750 seca.

    The wheels would be made of cast aluminum and/or magnesium mix (why some people call them mags). Unless you like road rash, plan to have the...
    Post by: 79xs, Oct 25, 2010 in forum: XJ Modifications
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