Announcement

Collapse
No announcement yet.

setup carburetor

Collapse
X
  • Filter
  • Time
  • Show
Clear All
new posts

  • setup carburetor

    [COLOR=rgba(0, 0, 0, 0.87)]I have a yamaha road star 1700, filter k & n open, empty exhausts, main jet is dyno jet 195, pilot jet- 35 mikuni.it is a poor mix, it is from the silencer and the free spins are freezing[/COLOR]

  • #2
    Do you also have a dynojet needle? If so throw the 195 main jet away(Way to rich) and replace it with a Mikuni 172.5 main jet. Also buy a Mikuni 40 pilot jet to install. Put the needle clip in the 4th groove with the plastic spacer and 1 silver washer under the clip, turn the PMS screw to 2 1/4 - 2 1/2 turns out. You may still get a little popping on decel due to your gutted exhaust with no back pressure but it will be jetted about as close to perfect as you will get with your setup.

    BTW

    Comment


    • #3
      Thanks davej ,
      [COLOR=rgba(0, 0, 0, 0.87)]I had such a setup before and it is still a lean mixture, and besides, it goes out of rotation for a long time and the engine runs unevenly on free[/COLOR] This works beautifully
      https://youtu.be/JXx2vrKkVJQ

      Comment


      • #4
        Sounds like your idle is set too low. It should be set at 900 rpm when the bike is warmed up after a ride.

        Comment


        • #5
          If that bike in the vid is warm, the idle is very low.

          Comment


          • #6
            Your idle is too low like said above. If you have a lean mix with the jetting you said with a 195 main jet that tells me you have an air leak somewhere. A 195 main jet should be very rich. The jetting I recommended is the jetting that has been proven correct for your bike. If you are having a problem with a lean condition you have an air leak somewhere

            Comment


            • #7
              [COLOR=rgba(0, 0, 0, 0.87)]I checked and left the left air everywhere[/COLOR]
              [COLOR=rgba(0, 0, 0, 0.87)]my spark plugs[/COLOR]
              Attached Files

              Comment


              • #8
                Check the color of your plug against this chart.

                Comment


                • #9
                  Thanks for the help and what are your spark plugs looking like?

                  Comment


                  • #10
                    ]in my engine the engine speed with the pms of 3.5 outputs stops increasing

                    Comment

                    Latest Posts

                    Collapse

                    Topics Statistics Last Post
                    Started by Darkkill57, 7 minutes ago
                    0 responses
                    1 view
                    0 likes
                    Last Post Darkkill57  
                    Started by GreasySam, 08-22-2018, 10:45 PM
                    48 responses
                    782 views
                    1 like
                    Last Post Questcap  
                    Started by roadiemort, 5 hours ago
                    6 responses
                    14 views
                    0 likes
                    Last Post roadiemort  
                    Started by Father Pobasturd, 3 hours ago
                    2 responses
                    19 views
                    0 likes
                    Last Post Doc_V
                    by Doc_V
                     
                    Started by tdor54, 03-17-2019, 08:04 PM
                    4 responses
                    96 views
                    0 likes
                    Last Post Doc_V
                    by Doc_V
                     
                    Started by Dick M, 3 days ago
                    32 responses
                    421 views
                    0 likes
                    Last Post Father Pobasturd  
                    Started by Father Pobasturd, 4 weeks ago
                    320 responses
                    3,811 views
                    1 like
                    Last Post Doc_V
                    by Doc_V
                     
                    Started by Jclevesque, 11 hours ago
                    9 responses
                    79 views
                    1 like
                    Last Post Brad_G
                    by Brad_G
                     
                    Started by Whitty, 1 day ago
                    17 responses
                    153 views
                    0 likes
                    Last Post Brad_G
                    by Brad_G
                     
                    Started by Ahodge75, 1 day ago
                    6 responses
                    237 views
                    0 likes
                    Last Post Chromepony  
                    Started by drumsonly2002, 1 day ago
                    11 responses
                    141 views
                    0 likes
                    Last Post roadiemort  
                    Started by drumsonly2002, 2 days ago
                    10 responses
                    233 views
                    0 likes
                    Last Post blueverclear  
                    Started by drumsonly2002, 1 day ago
                    9 responses
                    110 views
                    0 likes
                    Last Post Jlb76
                    by Jlb76
                     
                    Started by Lug Nut, 3 days ago
                    16 responses
                    199 views
                    1 like
                    Last Post Lug Nut
                    by Lug Nut
                     
                    Started by rondo_calrissian, 2 days ago
                    10 responses
                    147 views
                    0 likes
                    Last Post boomerA
                    by boomerA
                     
                    Started by Father Pobasturd, 3 days ago
                    11 responses
                    173 views
                    1 like
                    Last Post Father Pobasturd  
                    Started by RedManR1, 3 days ago
                    19 responses
                    258 views
                    0 likes
                    Last Post Shores
                    by Shores
                     
                    Started by BubbaKahuna, 6 days ago
                    36 responses
                    615 views
                    0 likes
                    Last Post beau1
                    by beau1
                     
                    Started by Cdub, 2 weeks ago
                    12 responses
                    204 views
                    0 likes
                    Last Post Cdub
                    by Cdub
                     
                    Working...
                    X