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fuel mixture


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How do I know if my brat is running to rich? I have heard that it blows a lot of petrol smoke when I floor it. It also doesn't need choke to start (I just use have to give it a few dabs of throttle.)

Its a EA81 twin weber carb setup btw.

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The sound the intake makes when you give it WOT

(Wide Open Throttle)

is a dead give away.

 

If it gives a deep whoooooo but does not

accelerate like it should, indicates a rich condition.

 

A lean condition normally results in a backfire

through the carby.

 

Black soot on the sparking plugs will result also.

 

A cheap air fuel ratio gauge tied into the

02 sensor will also show you this.

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