Super E Question

[jank1331]

I have an S&S super E on my 58, new top end job with about 200 miles on it now. After countless sessions of messing with the adjustments, and trying different jetting, I almost have it to where I want it....I think. My problem is this: After it is warmed up it will idle and accelerate good but when Im at a stop, it seems as if I just barley touch the throttle and it will pop from the carb and die. A little challenging to get a hot start but it will fire back up and ride fine. Its completely intermittent but it will do it every ride. Any ideas on an adjustment that I have missed?

[Panacea]

Try lifting the enrichener just a tad when this happens and see if the pop and die goes away, if it does,open up the idle screw another 1/8 turn and try it again. Usually the pop and die is a lean idle circuit. Are the points and condenser good?

[jank1331]

Thanks for the input. The points and condenser are new. I will give the enricher lever a try and see what happens. So if I have to change the idle screw setting, my idle will go up. Is there a way to keep my idle the way it is and get rid of the pop?
Thanks

[Ripley/Fla]

I went through similiar issues. Mine ran great once I got it off the idle circuit. Search vacuum leaks. I had my motor rebuilt by a 'big time' West coast guru. Unfortunately he never bothered to leak test the screw in O-Ring adaptors, the rivet hole, or check the S&S manifold for flatness. So, pressure test to be sure.

[jank1331]

Dont think there is a leak anywhere but will double check. Thanks

[Panacea]

Just re-adjust the idle screw to where you like it, The leak test is a very good idea, have you seen the method? Here it is I copied cottons link http://virtualindian.org/11techleaktest.html" onclick="window.open(this.href);return false;

[Panshovevo]

Correct me if I'm wrong, but it sounds as though you are setting your idle speed with the idle mixture screw.
If so, turn the idle mixture screw out an eighth or so, and increase or decrease your idle speed to where you want it with the idle speed screw.
Repeat if necessary.
If I misunderstood, I apologize.

Regards,
John

[Panacea]

http://www.sscycle.com/carbquickguide/" onclick="window.open(this.href);return false;

[panhead]

https://www.hydra-glide.net/phpBB3/view ... =65&t=4419

[George Greer]

So this is a good carb to use instead of a M74?

I have had the good fortune of having one given to me, for use on my upcoming 58 FL engine.

Thanks

George

[kitabel]

A bit big for a 74, and you won't get more power out of it until you straighten out the jetting (they're shipped a bit rich). The accelerator pump masks any idle jet adjustment, you need one small enough that response with the pump shut off is bad or the mileage will be poor.

[Ohio-Rider]

George, If you have an M74, then I would use it. I ran a S&S for seven years and suffered from hard hot starts. This past year I put a M74 on the same bike and never once suffered a hard start. Never! I also test my manifold for leaks often. It won't matter what carb your using if you have manifold leaks.
Steve

[George Greer]

Thanks for the tips..

Nope, engine don't have a M74, or any carb on it at the present time...just thought since I saw post's here about the S&S, and since it was free.........I thought that I could use it.

Perhaps not such a good idea.

George

[jank1331]

Correct me if I'm wrong, but it sounds as though you are setting your idle speed with the idle mixture screw.
If so, turn the idle mixture screw out an eighth or so, and increase or decrease your idle speed to where you want it with the idle speed screw.
Repeat if necessary.
If I misunderstood, I apologize.

Regards,
John

John,
Thanks for the reply. Ive been turning out the mixture screw by 1/8th turns to try and decrease the popping. According to the S&S mannual, a sign that the jetting is to lean is more than 1 1/2 turns out. I currently have a .074 primary with the mixture screw out almost 1 3/4 turns. Its getting harder for cold starts too ( not sure whats up with that ). This seems to be too rich of a setting for a basically stock 74". I havent had the chance to do a pressure test yet, but I am starting to think I have something going on......having to richen it up to this point and still getting a lean pop; air getting in from somewhere? More trials ahead for me.

Thanks for all of the responses,

Steve

[panhead]

My Super E came standard with a .062, which made it running and startying good, cold & warm. I now have a .068, which is too rich, so I', going back to .062.