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Carburetor lean or rich? (Read 79 times)
DaveinFL
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Carburetor lean or rich?
11/30/19 at 08:49:03
 
I've put 2500 miles on my bike since July.  I replaced the header pipe before I started riding. It looks like the day I put it on, no blue at all. The other bikes I had were either a light tan or blue. I have an occasional exhaust back fire slowing down from high speed and when shutting the ignition off, not loud. Funny thing is it seems to run really good! It idles smooth and never any hesitation or flat spots. I've used my gps app on my phone and had it up to 95 mph with a little throttle left. I rarely ride above 65 mph, I wanted to see what it could do. The bike is stock as far as I know? Stock exhaust, etc... The adjustment on the carburetor is frozen so I couldn't experiment with it. I am going to take care of that when I repair the oil leak in the head come January or February when it's to cold to ride. Should I leave well enough alone or mess with it?
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LANCER
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Re: Carburetor lean or rich?
Reply #1 - 11/30/19 at 10:27:16
 
DaveinFL wrote on 11/30/19 at 08:49:03:
I've put 2500 miles on my bike since July.  I replaced the header pipe before I started riding. It looks like the day I put it on, no blue at all. The other bikes I had were either a light tan or blue. I have an occasional exhaust back fire slowing down from high speed and when shutting the ignition off, not loud. Funny thing is it seems to run really good! It idles smooth and never any hesitation or flat spots. I've used my gps app on my phone and had it up to 95 mph with a little throttle left. I rarely ride above 65 mph, I wanted to see what it could do. The bike is stock as far as I know? Stock exhaust, etc... The adjustment on the carburetor is frozen so I couldn't experiment with it. I am going to take care of that when I repair the oil leak in the head come January or February when it's to cold to ride. Should I leave well enough alone or mess with it?



What kind of milage are you getting ?
If around 50 or so then you are pretty good, so you can leave it for now.
If not, then you should pull it for a thorough cleaning this winter.

As seasons change it is good to just recheck the pilot screw setting to insure it is still functioning well, and also to keep adjusting screws to keep from freezing up.
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DragBikeMike
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Re: Carburetor lean or rich?
Reply #2 - 11/30/19 at 16:53:10
 
While you are waiting for the deeeeeep freeze to set in, periodically give that frozen mixture screw a shot of penetrant.  You might get lucky.

Based on your description, sounds like the jetting is pretty good as-is.
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ohiomoto
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Re: Carburetor lean or rich?
Reply #3 - 12/01/19 at 06:32:25
 
I agree, if it runs well (and it sounds like it runs great), leave it alone.  
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Re: Carburetor lean or rich?
Reply #4 - 12/02/19 at 09:10:30
 
It's always good to inspect/clean the carb if the bike is used , and to find out just what jets your running .  FLA. is mostly near sea level ,that makes me think their not stock ,and the reason your header isn't bluing, the other reason is the Savage header is a double layer ,your other bikes may not be.
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DaveinFL
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Re: Carburetor lean or rich?
Reply #5 - 12/02/19 at 12:04:51
 
Thanks all,  I just wasnt sure if the things I mentioned were normal for this bike. After using PB blaster for a few weeks I screwed up the carburetor adjustment screw so I'm past using penetrating oil. I'll probably drill it then use an easy out. I hate to mess with it since it's running good but I'm a bit of a perfectionist and it will bug the heck out of me if it is not right. I never recorded the exact MPG, I`m thinking around 45 MPG? I don't baby it. I took the carburetor bowl off before I started riding it and it was spotless, I'll go through it when I fix the screw.
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DragBikeMike
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Re: Carburetor lean or rich?
Reply #6 - 12/02/19 at 22:04:49
 
You might want to look into a left hand drill bit.  If you drill in the clockwise direction, you can run the mixture screw in until it bottoms out and damage the carburetor.  If you use a left hand drill bit, and the bit bites while drilling counter clockwise, it will tend to run the mixture screw out.  Less chance of hosing up the carb.

I believe I have also seen some left hand screw extractors that you run with a drill.

Any way you cut it, gotta be extra careful.  It's an expensive part.
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