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XJ550 Owners in LA?

Discussion in 'XJ Technical Chat' started by Joshua Olkowski, Feb 16, 2019.

  1. Joshua Olkowski

    Joshua Olkowski Member

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    Thanks for the advice. I can't put any more significant money into this thing.
     
  2. Xjrider92117

    Xjrider92117 Active Member

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    Doesn't hurt to offer 100-200$. Whats the worse that could happen he says no? The ad is 22 days old.

    If the engine is still available.
     
  3. XJ550H

    XJ550H Well-Known Member Premium Member

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    not a lot of difference in the jetting http://xjbikes.wikidot.com/carb-specs
    main needle jet is the expensive parts then pilot air jets
    Years & Models: 1981-83 XJ550 Maxim North American models
    Carb Manufacturer: Mikuni
    Carb Series: BS28
    Carb Model ID: 5K500
    Main FUEL Jet Size: #112.5
    Pilot FUEL Jet Size: #35
    Main AIR Jet Size: #70 (non-removable, in carb throat)
    Pilot AIR Jet Size: #165
    AIR COMPENSATOR Jet Size: not used.
    Starter FUEL Jet Size: #35 (non-replaceable, in float bowl)
    Main jet NEEDLE ID: #4GN
    Main needle JET Size: #O-8 (the main needle JET is also known as the "power valve" or "emulsion tube").
    Fuel Level in float bowls: 2mm +/- 1mm (.08" +/- .039")
    Idle RPM's: 1,200 rpms

    Years & Models: 1981-83 XJ550 Seca North American models
    Carb Manufacturer: Mikuni
    Carb Series: BS28
    Carb Model ID: 4U800
    Main FUEL Jet Size: #112.5
    Pilot FUEL Jet Size: #35
    Main AIR Jet Size: #70 (non-removable, in carb throat)
    Pilot AIR Jet Size: #170
    AIR COMPENSATOR Jet Size: not used.
    Starter FUEL Jet Size: #35 (non-replaceable, in float bowl)
    Main jet NEEDLE ID: #4GZ11
    Main needle JET Size: #O-8 (the main needle JET is also known as the "power valve" or "emulsion tube").
    Fuel Level in float bowls: 2mm +/- 1mm (.08" +/- .039")
    Idle RPM's: 1,200 rpms
     
  4. Joshua Olkowski

    Joshua Olkowski Member

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    Hi everybody. Just wondering if there's a method to finding an oil leak on the underbelly of the engine. My Seca 550 always leaks about a few drops after every ride and when I look down below there's oil and dirt and sutt all on the bottom part of my engine. Any advice would be great.
     
  5. XJ550H

    XJ550H Well-Known Member Premium Member

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    clean and powder with talc.

    your oil leak could be as simple as the crush washer om the drain bolt, replace it.
    oil filter housing the o ring that comes with filter is not the correct size you can get the correct one from xj4ever or you can seal the housing with rtv .
    thin smear on the surface tighten it up let sit then torque to spec.
    next under side leak could be the o ring seal on the oil level sensor.

    another common leak is the tach housing seals
     
    Jetfixer likes this.
  6. Joshua Olkowski

    Joshua Olkowski Member

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    Thank you very much. I hope it's really simple.
     

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