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Author Topic: Trying to jet my Airstriker carb........  (Read 14276 times)

Offline Skeans1

Trying to jet my Airstriker carb........
« Reply #45 on: February 11, 2015, 01:45:02 AM »
From the sounds of it Jerry said a deg needle would be what you're looking for.

Offline Jimbo45

Trying to jet my Airstriker carb........
« Reply #46 on: February 13, 2015, 10:00:30 PM »
Quote from: Jerry Hall;50042
Be careful, raising the needle like this may cause the needle to pull out of the needle jet at full throttle causing the throttle to stick wide open!!!!!!!!!!!!!!!!!!


A DCH in the top clip position will give you the same mixture vs throttle position as the DGH in the bottom position you are now using.

A DEG in the middle clip position will be a little richer in the 0 to about 1/2 throttle position and the same as the DGH in the bottom position from about 1/2 full throttle position.  

You need to invest in a hand full of different needles so that you can make changes and learn how these carbs really work.  This is the only way you are going to learn how to tune these carbs.  There are over 125 needles that fit this carburetor.

I would recommend that you put these needles in your tuning kit.
DDE, DEF,  DEG,  DEJ, DEK,  

If one of these needles does not make your engine run correctly you probably have other problems with your basic engine package.
Thanks for the help Jerry!  You know your jets!
It appears the sweet spot for the DGH needle in this cold weather, is the 4th notch (which is good, since I will probably need to raise it to the middle notch in summer anyway), as far as half and 3/4 throttle go.  Say, I wanted a needle to run the same in the 4th clip on a needle, but the next step richer, around 1/4 throttle?  Like an identical needle, only fatter in the lower third of the throttle?  I need one with the next step longer straight area at the top of the needle, correct?  Which one would that be? I am thinking a DGG?  I am afraid the DEG might be too much, because I like the way the DGH runs in the upper half of throttle.  The charts are great, but greek to a newb like me....too many letters and numbers. LOL.  THanks for all the help guys, and sorry to be such a newb, but I about have this carb set!

Edit: I just ordered DGG and DEG needles to try!
« Last Edit: February 14, 2015, 01:20:47 AM by Jimbo45 »

Offline Jimbo45

Trying to jet my Airstriker carb........
« Reply #47 on: February 23, 2015, 01:10:23 PM »
A little update.....

I installed the DGG in the 4th notch, and also the #40 pilot tuned pretty clean at 1.25 to 1.5 turns out.  A brief test the other seemed to indicate I may have got it right finally!  This stupid 9 degree weather is keeping me from doing more testing though.  

Thanks for all the help guys!

 

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