5hp Briggs Throttle Question

[natman316]

Hi guys

I recently picked up this B&S flathead for my project kart.


However I cant find a way open the throttle without moving the butterfly valve itself. The old owner had a custom throttle on top but it worked by having the governer pull the throttle wide open and then pulling against the governer.

I was wondering if there was another to open the throttle on these engines because operating the throttle this way doenst seem very safe. it also didnt idle very well when it was setup like this.

here is another picture incase it helps

thanks

 

[motor_head]

that looks sort of funny that spring shouldn't be there
can you get a pic of the linkage under the tank? there should be a spring that pulls the gov arm in a direction that opens the throttle you just control the rpms buy how tight the spring is

 

[natman316]

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here is another picture. so far i hooked it up using a bracket i made myself pulling on teh governers spring

 

[porsche930dude]

Pull that goveroner stuff off that will give you nothing but problems. These old briggs motors dont need goveroners. they put them on for industial applications. The valve springs are so weak they act as a rev limiter so you dont need to worry about blowing it up. Also check the valve clearances as just about every old briggs iv had was out of adjustment causing low compression

 

[solomon]

http://www.diygokarts.com/vb/showthread.php?t=7036

 

[motor_head]

everything looks right except the spring on to by the carb, you just need to have a cable attached to the bottom spring that adjust it's tension you'll have to play with it so it idles good and doesn't rev to high