Need advice on my Holley DP 650

[340inabbody]

So I am going back to basics on tuning my carb and I am not claiming to be experienced on it at all. So your advice is needed and appreciated.

Initially I checked float height and it was fine on both primary and secondary. Recently I checked again since I think that is the starting place. The primary is good but the secondary is low and no matter how much I back the nut off CCW the level doesn’t come up.

Anyone have any advice other than pulling the bowl and inspecting the float assembly or if that what to look out for like a hanging spring etc?

Thanks
Ron

 

[GTX JOHN]

You need to remove the bowl.

Not a big job.

I have never encountered that particular issue.

 

[340inabbody]

You need to remove the bowl.

Not a big job.

I have never encountered that particular issue.

Thanks John I kinda figured I might need to do that. Is there an easy way to drain the bowl? Also where is a good place to get an exploded view/drawing for the carb?

 

[Ironmike]

Stuck needle? Drain the bowl and pull it off. Easy.

 

[340inabbody]

Stuck needle? Drain the bowl and pull it off. Easy.

Thanks Ill look for a drain plug…

 

[GTX JOHN]

No drain plugs on holleys.
Just put a small pan under it.