Adjusting carb 85 XLS
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Road Master
Joined: Feb 2007
Posts: 903
Likes: 54
From: Liberty Hill, Tx.
Adjusting carb 85 XLS
First let me say that I have been on the Sportster forum for a long time now. I did not see this forum, glad I found it.
I bought my brother-in-laws 85 Roadtser about a year and a half ago. I have already put 6000 miles on it. Love riding it, but I think it has always run lean. I get backfiring through the carb, popping on decel and the throttle response just does not seem as good as it should be.
I have always worked on my own trucks, but do not know much about motorcycles. Ready to learn!
How do I adjust the carb? PICs would be nice. I am a see and learn type guy.
I bought my brother-in-laws 85 Roadtser about a year and a half ago. I have already put 6000 miles on it. Love riding it, but I think it has always run lean. I get backfiring through the carb, popping on decel and the throttle response just does not seem as good as it should be.
I have always worked on my own trucks, but do not know much about motorcycles. Ready to learn!
How do I adjust the carb? PICs would be nice. I am a see and learn type guy.
Road Warrior
Joined: Nov 2006
Posts: 1,441
Likes: 791
From: Heart of Dixie
RE: Adjusting carb 85 XLS
You may be able to get it running better just by adjusting the low speed mixture screw. They came adusted pretty lean from the factory. It's in a little tower on top of the carb, and will have a pressed-in cap covering it if it's never been adjusted before (an EPA thing). The cap can be removed by drilling a small hole in it, screwing a sheet metal screw into it, and pulling it out with pliers.Turningthe screwout another half turn or so may be all you need. If adjusting it doesn't cure the backfiring, a rejet may be necessary. Sorry, no pictures.
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