Starting line lull after start??

Dale Rethke · 07-27-2014, 08:49 PM

I have a problem and I am not sure what this could be doing this but when I leave the start the car leaves then has a little lull you might say then goes again?

I have a video of it after take off you can see the front of the car drop when it does this then pick back up after the lull if we can call it that.
Any Info would be appreciated.

Thxs
Dale Rethke

Mark Markow · 07-27-2014, 10:25 PM

judging by the black smoke under the car when it happens it may just be a fuel slosh issue. what carb is on it? sometimes all it takes is an extention on vent tubes

Bob Bender · 07-28-2014, 07:01 AM

The carb is just too rich ??

Ed Wright · 07-28-2014, 07:57 AM

Floats too high?

Myron Piatek · 07-28-2014, 12:00 PM

Accellerator pump duration is too long and is continuing after the main circuit is fully active?

I like the "floats too high" encouraging "slosh out the vents" theory as well.

Dale Rethke · 07-28-2014, 07:41 PM

Thanks for the reply everyone

It has the AVS carb on it as you probably know so I will give this input a try.
You really notice it more when you watch the video then being in the car it seems.

Thxs again all

j gardiner · 07-30-2014, 04:23 PM

I had similar issue. My problem was the floats were too high.

Dale Rethke · 07-30-2014, 08:22 PM

Thxs again for the input.
What is a proper height?

07-27-2014, 08:49 PM	#1
Dale Rethke Junior Member Join Date: Jul 2009 Posts: 50 Likes: 4 Liked 1 Time in 1 Post	Starting line lull after start?? I have a problem and I am not sure what this could be doing this but when I leave the start the car leaves then has a little lull you might say then goes again? I have a video of it after take off you can see the front of the car drop when it does this then pick back up after the lull if we can call it that. Any Info would be appreciated. Thxs Dale Rethke

07-27-2014, 10:25 PM	#2
Mark Markow Senior Member Join Date: Apr 2008 Location: east hartford ct. Posts: 539 Likes: 0 Liked 9 Times in 3 Posts	Re: Starting line lull after start?? judging by the black smoke under the car when it happens it may just be a fuel slosh issue. what carb is on it? sometimes all it takes is an extention on vent tubes __________________ Mark Markow 171 ss/tb

07-28-2014, 07:01 AM	#3
Bob Bender VIP Member Join Date: Jan 2009 Location: Maryland Posts: 1,729 Likes: 1,595 Liked 459 Times in 90 Posts	Re: Starting line lull after start?? The carb is just too rich ?? __________________ Bob Bender 144 O/SA 2010-2012 National Record Holder

07-28-2014, 07:57 AM	#4
Ed Wright Veteran Member Join Date: Mar 2005 Location: Sand Springs, OK Posts: 8,132 Likes: 896 Liked 390 Times in 170 Posts	Re: Starting line lull after start?? Floats too high? __________________ Ed Wright 4156 SS/JA

07-28-2014, 12:00 PM	#5
Myron Piatek VIP Member Join Date: Nov 2001 Location: Florida Posts: 1,542 Likes: 34 Liked 138 Times in 51 Posts	Re: Starting line lull after start?? Accellerator pump duration is too long and is continuing after the main circuit is fully active? I like the "floats too high" encouraging "slosh out the vents" theory as well. __________________ LOCOMOTION Racing

07-28-2014, 07:41 PM	#6
Dale Rethke Junior Member Join Date: Jul 2009 Posts: 50 Likes: 4 Liked 1 Time in 1 Post	Re: Starting line lull after start?? Thanks for the reply everyone It has the AVS carb on it as you probably know so I will give this input a try. You really notice it more when you watch the video then being in the car it seems. Thxs again all

07-30-2014, 04:23 PM	#7
j gardiner Member Join Date: Jul 2006 Location: waldorf Posts: 220 Likes: 14 Liked 53 Times in 28 Posts	Re: Starting line lull after start?? I had similar issue. My problem was the floats were too high.

07-30-2014, 08:22 PM	#8
Dale Rethke Junior Member Join Date: Jul 2009 Posts: 50 Likes: 4 Liked 1 Time in 1 Post	Re: Starting line lull after start?? Thxs again for the input. What is a proper height?