is the throttle fully open? go kart motor

[Macaroni_Sackaroni]

in this picture im pressing the gas pedal all the way. im not sure if the this is the "maximum" it can open, but it looks to me like the throttle lever should be touching that little stopper (the thing i put a red dot next to, not sure what its called), i can push it a little further than the picture shows but still doesn't touch the stopper. what does a completely open throttle even look like?

[bd]

With the engine off look down the throat of the carburetor with a flashlight.  Wide open throttle (WOT) occurs when the throttle plate is vertical (straight up and down) in its bore.

I STRONGLY recommend that you go to your local library or bookstore and pick up one or more basic books covering automotive engines and various powertrain components and how they function.  SA Designs publishes some excellent references aimed at automotive enthusiasts and basic automotive education.  Look through the appropriate sections of the 1975 Repair Manual and 1975 Wiring Manual to increase your understanding of your truck.  You will need both references as you restore your vehicle.

[Macaroni_Sackaroni]

With the engine off look down the throat of the carburetor with a flashlight.  Wide open throttle (WOT) occurs when the throttle plate is vertical (straight up and down) in its bore.

I STRONGLY recommend that you go to your local library or bookstore and pick up one or more basic books covering automotive engines and various powertrain components and how they function.  SA Designs publishes some excellent references aimed at automotive enthusiasts and basic automotive education.  Look through the appropriate sections of the 1975 Repair Manual and 1975 Wiring Manual to increase your understanding of your truck.  You will need both references as you restore your vehicle.

ill try to look down the throat thanks.

thanks

[AZ4X4SQBDY]

If I remember right, on small engines, the actual throttle position is controlled by an air governor off the fly wheel. You try to floor it but the air governor keeps the engine from self destructing from over reving.

[Macaroni_Sackaroni]

If I remember right, on small engines, the actual throttle position is controlled by an air governor off the fly wheel. You try to floor it but the air governor keeps the engine from self destructing from over reving.

then why would they design a little stopper for the throttle lever? regardless of what controls over reving i dont think that has any affect on the situation at hand which is why i cant setup the throttle cable to pull the lever all the way to the stopper.

when i take off the cable i can pull all the way. ill take a look at it tomorrow or next week and well see.

[Macaroni_Sackaroni]

after the first time i started tinkering with the throttle it started backfiring alot as well.

[1967KaiserM715]

It's just another idle stop, Briggs used several different throttle setups, but the same basic carburetor body. Throttle setups depended on application.  Have you looked down the throat and seen if the plate is wide open, those carbs tend to be a little tricky to see the plate with the 90 degree bend


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