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spy pics

Mazda Projects
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bodied b2600zx (josh)   +1y
I know you'll get it runnin! ! I have faith


-Josh
nytrdr24   +1y

Thx J, It'll run, but I'm kinda impatient, gonna order some jets here in a few & I'll try & play
with it a little more next weekend...It has hit on all 4 cylinders and sounds super strong,
it just won't idle or do more than hit once per cylinder....I know I have spark, and have checked
the timing, so all I can boil it down to is the carbs which say to turn out 1 1/4 on the idle screws,
to which I did and it would just barely hit each cylinder, so I turned them 2 full turns off seat, and it hit
a little harder, and I gave it another 1/2 turn and it hit all 4 sequentially, but the tuning book I have says
anything more than 1 1/4 and you need to go up one or two idle jet sizes, so hence ordering jets is in order...
I'll keep err'one posted....
hocbj23   +1y
u know them damn Webers are real sensitive to atmos. pressure as well.As long as we got good weather (ie high pressure) they should need a little more gas,not less,but hey what the Hell do I know.Try a bigger idle jetand see what happens and pray it doesnt rain.Lol.BJ
nytrdr24   +1y
Thanks for the info BJ, it is def a trial & error deal, not to mention $5 a jet, that can get expensive when there are 2 per carb! I'm fairly sure I'm getting enough gas, just prolly not the right air/fuel mixture thru the idle jets, so I ordered several different sized, along with some other tuning goodies, hopefully with a little test & tune, I'll have it running right before long.....

Base setting that came with the 45's:
Main Choke/Venturi = 36
Aux Choke/Venturi = 4.5
Main Jet = 145
Emulsion Tube = F16
Air Corrector = 155
Idle Jet = 55F8
Pump Jet [int] = 45, Pump Jet [exh] = 40
Needle Vlv = 2.00

What the weber books I got said:
Main Choke/Venturi = 36 up to 38 for max wot power
Aux Choke/Venturi = 4.5 up to 5.0 again for max wot power
Main Jet = 145 good for 500cc per cyl engine, 150 for 550cc, 155 for 600cc, with the +1mm overbore, my engine comes out to 2235 cc total, 558.8cc per cyl
Emulsion Tube = F16 for 300-425cc, F2 for 425-550cc [F# is air correction factor of the particular emul-tube]
Air Corrector = 155, Recommended starting with 160, and go leaner (larger #)
Idle Jet = 55F8 (155 is good for 490-560cc) [F# is air correction factor of the jet series]
Pump Jet [int] = 45 Pump Jet [exh] = 40 For 500-600cc 45 on int, 40 on exh, 600-700cc 50 int, 45 exh
Needle Vlv = 2.00 For 500-600cc, 2.25 for 600-700cc

What I ordered:
Main Jets = 150
Idle Jets = ordered 3 different F#'s, lean to rich = 55F2, 55F11, 55F9
Air Corr Jets = 165, 175
Emul Tubes = F2, and F9

I didn't get the larger main or aux choke since I'm not gonna be at wot all the time, driveability & fuel efficency with max power, the pump jets are sized correctly per the books recommendations as is the needle vlv....I figure with having two main jets, 4 idle jets, two air corr jets, and three emul tubes, I ought to be able to find the sweet spot so that i get the best tune all the way from idle to wot...fingers crossed, we shall see this weekend as long as the place I order them from has them in stock...
hocbj23   +1y
H-m-m-m-m.I think u ought to get all them fine pieces in there and while giving that mota ur best 10click stare,invoke the Mazda Mechanic's ancient incantation "Frimmin on the jim-jam,frammin on the Krotz" and just dare that sob not to start.LMAO.BJ
sosatheshark   +1y


man id love to meet you bj .you have some funny ass posts ,lmao
nytrdr24   +1y
Trying to upload a vid to utub for you guys...connection is slo tonight even for dsl
nytrdr24   +1y
It says it isn't processed or sumthin yet, they must have to approve it first....???

here's the link



this is like the 3rd time I cranked it, it is running, but roughly, I'm trying to load another vid I shot a little later this afternoon after I had a chance to tinker with the carbs, it was still idling a little high, but was running better....the second vid has been loading for 5 min and is only 1/2 way thru, so it may take a little while....but I'll post the link to it when it finishes loading...

Here's the second vid...

hocbj23   +1y
Its alive-Its alive-IT IS ALIVE.Bwah-a-a-a-a-ha..BJ
sosatheshark   +1y
that is sweet nytryder ,your only the second person ive ever seen with dual sidedraft webers EVER "THATS AWESOME,and running .congrats man!!!!!!!!!!!!!!!!!!!!!!!!!!!