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1982 Yamaha Seca 650 (Project)

Discussion in 'XJ Technical Chat' started by firebane, Jun 27, 2019.

  1. firebane

    firebane Active Member

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    I'm just concerned about the "gurgle" at idle. Starting high I can easily adjust down to where it sounds good.

    It's just fine tweaking from here now. Having it run like it does feels good.
     
  2. Polock

    Polock Well-Known Member

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    what da hells a gurgle
     
  3. firebane

    firebane Active Member

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    Lol it's a sound you usually hear I'm a old muscle car when idling. The loping sound.
     
  4. XJ550H

    XJ550H Well-Known Member Premium Member

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    these technical terms confuse me:confused:

     
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  5. Polock

    Polock Well-Known Member

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    my sink makes a gurgling noise when the dashwasher runs.
     
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  6. ddiggerr

    ddiggerr New Member

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    Quick question in regards to the pilot air jet size for the XJ650RJC.
    Specs show it should be #195, however I just opened carb and found all 4 to be #205.
    Will the bike still run properly with the higher pilot air jet?
     
  7. XJ550H

    XJ550H Well-Known Member Premium Member

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    sounds like you have maxim carb air jet
    Years & Models: 1982-4 XJ650 Maxim Canadian models
    Carb Manufacturer: Hitachi
    Carb Series: HSC32
    Carb Model ID: 5N900 or 5U900
    Main FUEL Jet Size: #112
    Pilot FUEL Jet Size: #43
    Main AIR Jet Size: #50
    Pilot AIR Jet Size: #205
    AIR COMPENSATOR Jet Size: #36
    Starter FUEL Jet Size: #40 (non-replaceable, in float bowl)
    Main jet NEEDLE ID: #Y-10
    Main needle JET Size: #3.2mm (the main needle JET is also known as the "power valve" or "emulsion tube").
    Fuel Level in float bowls: 3mm +/- 1mm (.118" +/- .039")
    Idle RPM's: 1,050 rpms
     
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  8. Toomanybikes

    Toomanybikes Well-Known Member

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    Many spec you see on line are for US bikes
    Those jet sizes are the same as my xj650rjc and she still pulls hard all the way to 9000 in any gear
     
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