Holy moses carb issue

[Tbowen23]

So I have been running the holy moses for 3 races now. First two races ran great, however the third race i was just in it ran awful. It was when we were pacing it would try to die and then come back to life after trying to race. Once it was cleared out it ran about 95% and was still able to go from 13th to 3rd. But I'm not sure why it need about half a lap to clear out and take off, whereas before it ran perfect. Any help is appreciated.

 

[alvin l nunley]

So I have been running the holy moses for 3 races now. First two races ran great, however the third race i was just in it ran awful. It was when we were pacing it would try to die and then come back to life after trying to race. Once it was cleared out it ran about 95% and was still able to go from 13th to 3rd. But I'm not sure why it need about half a lap to clear out and take off, whereas before it ran perfect. Any help is appreciated.

How was it in practice, in qualifying, in the heats, in the main? Did it only start in the main?

 

[sundog]

I would clean it and check the float height. Are you sure the spark plug is good?

 

[racinnut15xm]

So I have been running the holy moses for 3 races now. First two races ran great, however the third race i was just in it ran awful. It was when we were pacing it would try to die and then come back to life after trying to race. Once it was cleared out it ran about 95% and was still able to go from 13th to 3rd. But I'm not sure why it need about half a lap to clear out and take off, whereas before it ran perfect. Any help is appreciated.

They are bad to foul plugs if idled around alot might try a plug first

 

[Tbowen23]

How was it in practice, in qualifying, in the heats, in the main? Did it only start in the main?

It was the same all the way through hot laps qualifying heats and main. We tried adjusting the air/fuel screw but it didn't clear up any.

 

[Tbowen23]

I would clean it and check the float height. Are you sure the spark plug is good?

Yes had great spark before we left and at the track.

 

[flattop1]

Yes had great spark before we left and at the track.

That's not the issue . The plug type you are using .
The 3910x : if that's what you have switch it too a ngk something in a 6 heat range.
Regular electrode style plug not a 4 prong .

 

[Tbowen23]

That's not the issue . The plug type you are using .
The 3910x : if that's what you have switch it too a ngk something in a 6 heat range.
Regular electrode style plug not a 4 prong .

We are running the automated 4 prong plus. If this helps its a predator 212 hemi with a +.020 rod aluminum piston cam and a flywheel. Its for an open class around here.

 

[OVALTECH1]

https://www.ngk.com/ngk-5464-bkr5eix-11-iridium-ix-spark-plug

Thats my plug of choice on smaller plate clones with diesel carbs! Heat range 5 and it’s a fine wire iridium plug very good anti foul properties.

 

[JGR32]

How old is the carb? I talked to Melvin at Dover the other day and he said they were having trouble with some a while back from the manufacturer.

 

[mike97760]

Im no plug expert but if 90% of the guys beating you are running the 3910X it's probably not your problem

 

[melman_00]

Sent you a PM.. Thanks...

 

[Tbowen23]

How old is the carb? I talked to Melvin at Dover the other day and he said they were having trouble with some a while back from the manufacturer.

Maybe a couple months old

 

[Tbowen23]

Im no plug expert but if 90% of the guys beating you are running the 3910X it's probably not your problem

About all of us are running the 3910x. Im thinking pull the bowl off and give it all a good cleaning

 

[Tbowen23]

Talked to Melvin and he answered all my questions and helped me get it worked out over the phone. Forgot to mention it was an outlaw carb.

 

[flattop1]

Talked to Melvin and he answered all my questions and helped me get it worked out over the phone. Forgot to mention it was an outlaw carb.

What was the cure ?

 

[JGR32]

Talked to Melvin and he answered all my questions and helped me get it worked out over the phone. Forgot to mention it was an outlaw carb.

If there is anyone to get it straightened out, he’s the man.