Carb question
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Stage II
Joined: Feb 2008
Posts: 2
Likes: 0
Carb question
I bought my bike used, it has V&H pipes, and Stage 1 breather mod. My question is, how can you tell if the jets in the carb has been chaned out? I have read that you have to drill out a plug to get to one of the jets to change or adjust. Looking at my carb I see no hole or plug. Any help would be apprciated.
My reason for asking is that I get around 35 mpg max. and my sons 05 Softail, (2 yr newer but about the same miles) runs alot stronnger than mine.
Thanks
My reason for asking is that I get around 35 mpg max. and my sons 05 Softail, (2 yr newer but about the same miles) runs alot stronnger than mine.
Thanks
Former Sponsor
Joined: Jan 2009
Posts: 19,364
Likes: 40
From: Los Angeles, CA
The plug that gets drilled is on the bottom of the carb. You will have to reach under the carb and feel around on the portion that sticks down by itself to see if their is a screw that is reachable. Kind of hard to explain without a picture. If you are getting 35 mpg it has most likely been rejetted. I am sure someone will provide a pic.
Road Warrior
Joined: Mar 2007
Posts: 1,396
Likes: 146
From:
The welch plug on the bottom covers the low speed air/ fuel adustment screw. The trick is to use a small drill to just pierce it and pry the plug out, and throw it away. Then with the bike warmed up, turn the screw until it just bottoms. Do Not turn it once it gently bottoms or you will damage the seat. Back the screw out 2 and 1/2 turns. Start the bike and turn in the screw until the idle speed slows. Then count the turns as you back it out until it slows again. Turn it back half way from the place it started to slow down. If it takes a radical setting here pull the floatbowl and remove the slow jet. That's the one that hangs down lowest. Usually a 46 is best, 45 is stock and sometimes is fine, some bikes like a 48. Sounds like your bike is running rich, it should get at least mid 40s for milage.
Last edited by Northside; Feb 26, 2010 at 10:12 AM.
Road Master
Joined: Jan 2010
Posts: 1,203
Likes: 1
From: Texas
This site helped me out a lot when I got my bike that had been sitting up for two years. I also ordered an easy adjust idle screw, brass fuel inlet elbow, and the thunder slide Dyna Jet kit. And a new Pilot jet. I think it was a #46. My bike is a 2001 Twin Cam. Hope this helps.
http://www.gadgetjq.com/keihin_carb.htm
http://www.gadgetjq.com/keihin_carb.htm
Ultimate HDF Member
Joined: Oct 2007
Posts: 5,257
Likes: 6
From: Leander Texas
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