Weber jet question

[xirdneh]

i called Redlineweber today just to see what they had to say about this setup
Main fuel primary 125 secondary 130
Air primary 160 Air secondary 170
Idle primary 55 idle secondary 50
idle set screw is 1 turn in ( supposed to be less than 1.5 turns )for idle around 650-700 rpms
idle mixture screw is 1-7/8 turn out (this is what its supposed to be)
car idles great and runs great
the guy i talked to thought i might be too lean with that 125 primary jet
he asked what the plugs colors were
they are light gray (with 140 they were black with 135 light gray with 125 light grey)
he says they should be tan colored
the stock carbs always gave me a tan color
googleing proper color says tan or light gray is good
so whats the story on plug color? cause it does not look like i am going to get tan

[teranfirbt]

The ethanol they add to gas these days tends to make plugs run on the gray side rather than tan. Light gray is good, and as long as the car runs well and gets decent mileage I wouldn't mess with it too much.

[xirdneh]

talked to guy at triangle auto repair near bremerton, wa. Said it’s unlikely that I could melt a piston on a small engine like the 3ac that rarely gets above 3500 RPM’s. He says there would be warning signs like cutting out at higher revs and just plain running like crap. He thought I should keep jetting down till it runs poorly then go back up. I plan to do that but will be removing the weber from the test car and switching it back to the stock carb so I can sell the car. I will install the weber on another car and continue this soon. 120 jet here i come.

[xirdneh]

Pegasus online Weber sales
The Weber DGV series are very sensitive to changes in float level.
In fact, most of us using these carbs in racing applications never change jets but check and adjust the float level at least once every race weekend. If I'm reading your email correctly, your float is set at 44mm droop height instead of the recommended 51mm. This will cause the carburetor to run rich, which will waste fuel. Re-setting the float height to 51mm droop and 35mm (measured from the bottom of the float) with the float tab just touching the ball of the needle valve will result in a much leaner mixture throughout the RPM range.

Another easy thing to check is that the choke is opening fully when the engine is warm. If the choke stays closed, it can cause rich running and a loss of power. It will literally choke the carburetor, preventing it from breathing freely.

[xirdneh]

https://m.youtube.com/?#/watch?v=u5C-paKEh-Y

Float adjustment video found on youtube