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mpg is bad :(
https://slantsix.org/forum/viewtopic.php?t=43718		 Page 2 of 3
Author:  newport77 [ Tue Feb 22, 2011 11:29 am ]
Post subject: 
Check the ignition base timing first.
It should be something like 2 1/2 to 5 degrees BTDC I believe not not positive.

Next, check to make sure the vacuum advance in the distributor is working and is advancing the timing.
Then check to make sure the centrifugal advance is working.

These are the first and most economical places to check for something like this.
Author:  1974duster [ Fri Feb 25, 2011 7:52 pm ]
Post subject: 
i have been read about carb jet maybe you guys can educate me on how that work to get better gas milage if i get a smaller on the better the gas milage is right ??
Author:  Fopar [ Fri Feb 25, 2011 8:06 pm ]
Post subject: 
Some times it helps some times no.

Richard
Author:  1974duster [ Fri Feb 25, 2011 8:52 pm ]
Post subject: 
what did the stock 1945 carb come with
Author:  Fopar [ Fri Feb 25, 2011 9:56 pm ]
Post subject: 
I don't know as the only ones I have had on my stuff have been the holly front bowl carbs (they used to be called "fish bowl" because many years ago they had glass float bowls) talk about safety risks.

Richard
Author:  Aggressive Ted [ Fri Feb 25, 2011 10:04 pm ]
Post subject: 
My 1945 came with a #61 jet.
Author:  DusterIdiot [ Sat Feb 26, 2011 12:53 am ]
Post subject:  Two sizes
Quote:
what did the stock 1945 carb come with

1974 #58 Jet

1975+ #61 or #612 close limit jet

Which ever jet you use, you have to change the linkage settings on the carb to match the year/jetting you installed.

-D.Idiot
Author:  1974duster [ Sat Feb 26, 2011 9:23 am ]
Post subject: 
how do i go about getting linkage for 76 duster
Author:  1974duster [ Mon Feb 28, 2011 7:51 pm ]
Post subject: 
so i will look for one if anyone can help me out that would be great
Author:  ceej [ Mon Feb 28, 2011 7:56 pm ]
Post subject: 
Which linkage are you looking for? Throttle? Kickdown? What specifically is the problem?

CJ
Author:  2 Darts [ Mon Feb 28, 2011 10:44 pm ]
Post subject: 
I agree with Newport77. Do the easy & cheap stuff first, especially you go hauling off and taking a carburetor apart. I'm assuming that you're not using the two position throttle. That makes any engine get poor fuel economy.
Quote:
Check the ignition base timing first.
It should be something like 2 1/2 to 5 degrees BTDC I believe not not positive.
My repair manual shows that timing should be set at TDC for the 225.
Quote:
Next, check to make sure the vacuum advance in the distributor is working and is advancing the timing.
Then check to make sure the centrifugal advance is working.

These are the first and most economical places to check for something like this.
While making these checks, look for vacuum leaks. Cracked hoses and plastic fittings are among the usual suspects.
Author:  THOR [ Tue Mar 01, 2011 7:43 am ]
Post subject: 
Throwing parts at it wont likely solve your issue. You should go to get it looked at by one of the guys near you if you don't feel comfortable doing it yourself.

Trust me, Fopar doesn't bite... much...

:mrgreen:

~RDE~
Author:  Fopar [ Tue Mar 01, 2011 8:23 am ]
Post subject: 
"Which ever jet you use, you have to change the linkage settings on the carb to match the year/jetting you installed."

Rob (DI) was telling you to SET the linkage to match the year of the jetting size, not to get a different linkage set-up. You have my phone number, give me a call.

Richard
Author:  1974duster [ Mon Mar 07, 2011 5:10 am ]
Post subject: 
what should my vaccum gauage read on it
Author:  Fopar [ Mon Mar 07, 2011 8:29 am ]
Post subject: 
Some what near 20" at idle, if the motor is stock.

Richard
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