Carb baseline?
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Senior User
Joined: Mar 2015
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From: Eastern NC
Carb baseline?
Got my rebuild kit in from Mike's and went through the carb.
Looks like a really simple piece but I'm not sure how to go about getting it just right. It cranks and idles fine. And when I blip the throttle, it revs like it should. Basically, it's running pretty good, but I want to be sure it's correct.
Thanks!
Looks like a really simple piece but I'm not sure how to go about getting it just right. It cranks and idles fine. And when I blip the throttle, it revs like it should. Basically, it's running pretty good, but I want to be sure it's correct.
Thanks!
Hotshot
Joined: Feb 2015
Posts: 17,559
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From: Central Delaware
I was taught the basic way to adjust a carb is: Turn the jet screw in until the engine stumbles. Counting the turns, back it out until the engine stumbles again. Turn it back in 1/2 of that number of turns.
Short of using a flow meter, that's about it.
Short of using a flow meter, that's about it.
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Senior User
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From: Eastern NC
Thanks for the replies.
How do you go about setting the throttle valves? Should they be all the way closed when adjusting the idle valves?
I need to check ignition timing while I'm at it. Hope the light works with 6v..
How do you go about setting the throttle valves? Should they be all the way closed when adjusting the idle valves?
I need to check ignition timing while I'm at it. Hope the light works with 6v..
Lead Driver
Joined: Jul 2011
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From: Rockingham, VA
Try using a battery charger for the supply.
Hotshot
Joined: Feb 2015
Posts: 17,559
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From: Central Delaware
If you can locate an older style timing light you won't need any outside power. They were very simple and used the pulse from the distributer to light the bulb. One wire clamps on the plug and the other inside the plug wire.
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Throttle valves aka primary butterflies, are adjusted by the idle speed screw and should be set to approximate idle speed before adjusting idle mixture screws and readjusted as needed while adjusting idle mixture screws.
Last edited by truckeemtnfords; Apr 30, 2015 at 08:03 PM. Reason: spelling
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