NAV--i need some help.

[RAZOR]

or anybody else that knows for sure.
i rejetted my bike this saturday,now it does not want to idle-dies out but stays
started with choke knob all the way out,and while driving it sounds like it is backfireing through the carbs,i hear a muffled pop noise carb area.
i doubled checked everthing nothing is left loose and i did not forget any hoses.
although i still need to double check the air prefilter box it may have came loose.
NOW let me tell you what i did,i drilled out the wrong plug for the air mixture screws.
i drilled out the one that says do not touch in the link here.>>>
http://www.sa750.com/mixscrews/left%20mix.jpg
i left the plug out would this harm anything or cause some of my problem????
note: i drilled out the wrong one on the right side only.
also another question, i undid the coil right under the seat on the left side to have more room to work with,but forgot wich wires go where.
i got, while mounted a black terminal (on coil) on top and a green terminal (on coil)
on bottum.wires--- one black with white tracer and one light blue with yellow tracer.
the way i put them back on was the black wire to the black terminal and the
light blue wire to the green terminal.because that is the way i thought they came off but was not for sure.i even called the stealer and they guy said that has manaul did not show but he was assuming that the black goes to black and the
light blue goes to the green.so that is the way i put them.
.
.
worked on 2003 ss750-with cobra slashcut exhaust baffles still in,stock air cleaner
no mods at all to air cleaner.
installed cobra stage 1 jet kit.used jet kit needles and 100 main jet on right carb
and 102 main jet on left carb.as per jet kit instructions.
i also followed these instuctions.link here>>
http://www.sa750.com/
WELL I BABBLED ENOUGH AND I THINK I PUT DOWN ENOUGH INFO SO TIME
TO GET SOME ANSWERS.

[RAZOR]

THE SHAME!!!!!!
I'M so embarassed,all this for nithing,well i triple checked and guess what i found.
stupid!! stupid!! stupid!!
i did not seat the carbs on properly,i thought they were but they were just sitting
on top of the boots,and also remeber i told u about the air prefilter box,well that
to came loose,i zip tied that together,runs fine now.
nav-i could still need your answer on that plug i should'nt have drilled out???
and also the correct wireing on that coil.she seems to be running great but
I would like to know for sure,(thats just they way i am.
.
amature mistakes,that was the first time i ever removed a carb from a bike.
oh well i know next time to slow down and not get so excited,when going back
together.i guess you could say i blew my wad before i was even in.
I should of known better i mean i been working on cars for 7-years.

[navillustoo]

Raz,
Many of the plugs on these carbs are there to seal against a vacuum leak. You will want to check that that is NOT the case with the plug you drilled out. With the engine running, put your finger over the hole to see if you detect any vacuum. Rev the engine up with your finger there, as it may not have a vacuum at idle, but could at an off-idle throttle opening. Some holes are plugged just for the sake of keeping dirt out of the opening. That may be the reason that hole was plugged, I'm not sure. I'm glad you found that the carbs were not seated properly. That's the first mistake most people make, so don't feel bad! The second most common mistake is that the clamps are cocked or not tightened fully, so I hope you double-checked them.

I do have to question your choice of jets. When you say 'Cobra slashcut exhaust' are you referring to their drag pipes or the Classics slashcut? If they're the drags, your OK, if they're the Classics with a muffler body, you will be lean with 100/102 mains. So exactly what pipes do you have?

As far as the wiring goes, I will have to take a look at my wife's '03 SS750 to verify that the wires are on their proper terminal, but if she's running good now, I'd bet that you got that right.

One thing I learned a long time ago: Take notes, pictures sometimes don't tell the whole story. Anything you remove and will want to put back later should be written down. Another tip - don't forget where you put your notes! Don't ask me how I know this! LOL!

Brian

[RAZOR]

Raz,
Many of the plugs on these carbs are there to seal against a vacuum leak. You will want to check that that is NOT the case with the plug you drilled out. With the engine running, put your finger over the hole to see if you detect any vacuum. Rev the engine up with your finger there, as it may not have a vacuum at idle, but could at an off-idle throttle opening. Some holes are plugged just for the sake of keeping dirt out of the opening. That may be the reason that hole was plugged, I'm not sure. I'm glad you found that the carbs were not seated properly. That's the first mistake most people make, so don't feel bad! The second most common mistake is that the clamps are cocked or not tightened fully, so I hope you double-checked them.

I do have to question your choice of jets. When you say 'Cobra slashcut exhaust' are you referring to their drag pipes or the Classics slashcut? If they're the drags, your OK, if they're the Classics with a muffler body, you will be lean with 100/102 mains. So exactly what pipes do you have?

As far as the wiring goes, I will have to take a look at my wife's '03 SS750 to verify that the wires are on their proper terminal, but if she's running good now, I'd bet that you got that right.

One thing I learned a long time ago: Take notes, pictures sometimes don't tell the whole story. Anything you remove and will want to put back later should be written down. Another tip - don't forget where you put your notes! Don't ask me how I know this! LOL!

Brian

THANKS NAV-i'll try that with my finger and off idle i tryed it at idle but not off idle.
also there are the drags,not classics.i have the air mixture screws turned out 3
times as per ther jet kit instructions.also i could not find anything from cobra/dynojet on anything i should have done different because of my
elevation here 5,610 ft or around there.would you know anything about that??
i know i should wrote it down but like a dumb ass when i took them off i said to myself oh i will remember how these go-LOL.
do you have any suggestions on how to plug the hole back up.

[navillustoo]

Raz,
Dynojet told me that their kits, unless they specify that they are high altitude kits, are good for up to 3000 ft. above sea level. At 5600 ft. or there abouts, I'd have to believe your engine will be running a little on the rich side. Not a bad thing per se, but you will not be making maximum power. If you begin to foul plugs, you will definitely have to tweak the set-up a bit. But if she runs good and doesn't present a plug fouling situation, you may just want to leave it alone. If you do have to mess with the jetting, you'll have to obtain a size or two smaller than the 100's. I would say it would be best to wait and see what the plugs look like before you start any rejetting again. Have you taken a plug reading yet and do you know the proper technique for taking those plug readings? I've posted the method for taking the reading, don't know if you've seen it. If not, let me know and I'll go through it again for you.

As far as covering the hole back up, it'll depend on whether it presents a vacuum leak or not. I would still suggest that you replug it, even if there is no leak. How you plug it will depend on what the plug was covering. If it was just a dust cover and there is nothing that moves inside the hole, you could use epoxy or silicone. If it was mine, I would make a new plug, but if you don't own or work in a machine shop, you'd be best to just go to the dealer and order a replacement plug. Keihin has a few distributors in Ca. but I don't know if they'd be any cheaper or if they'd even deal with you. You may not have a choice of where to obtain a new plug.

Brian

[RAZOR]

yeah i know the technique for reading the plugs,i remember reading your post
on that. i have not had the time to do that r nor the money for the numerous
amounts of plugs that will be used,that will have to wait until later,for now she seems to be running good axcept for when you just start to move the throttle
eithier takeing off or while in any gear and you snap the throttle real fast not all the way open but maybe just half way.it seems like has a real quik hesitation and
then wham theres the power.also same thing when i'm changing gears
when i really get on it.as soon as i change gears and let the clutch out and
first start to open the throttle thats when it seems like it does it.any ideas????
thanks for your help again.... :Boobs: if i had boobs i would show them to you. :crazy3:

[navillustoo]

Raz,
The rule of thumb is if you experience a stumble or miss on acceleration, then the engine is too rich. Inversely, if you notice a surge or uneven RPM while holding the throttle steady, it is too lean. From your description, I therefore would have to believe that your engine is too rich. When you say twisting the throttle rapidly but not WOT, the hesitation doesn't last very long, is a little deceiving. But any hesitation on acceleration is a sign of richness. However, I want to think that the richness is in the needle calibration, not from the mains, because of where you are experiencing the hesitation - in the transition from idle to part throttle. In lieu of reading your plugs at this time, you might want to try lenghthening the needles, in other words, move the clip one notch closer to the top of the needle. This will make that transition a little leaner and may cure the hesitation.

As far as needing a bunch of new plugs to take a reading, the most new plugs you'd need would be 4. However, if the plugs you have are not too old and are not all fouled up, you can get a decent reading from them, they don't have to be brand new plugs each time you take a reading!

And, as far as showing me your boobs if you had some, that's OK, I'll try and help you anyway!!!!LOL!

Brian

[RAZOR]

right on thanks for your info na right now i have the clip on the needles set
at 3-rd from the top,as per the jet kit instructions.i will move them maybe this weekend up one more notch,because i know for sure that i am running to rich
with out looking at the plugs by the smell of the exhaust,very strong raw fuel
smell,but i am not getting no smoke.
and also last night i took her on the free way and noticed "from all gears" "at any speed" from no throttle to half throttle it seems a bit sluggish,and when,im
cruising lets say in 5-th gear and throttle at halfway,and i snap the throttle back just
past half way theres a lack of power and then from there theres all the power
in the world after halfway.---hummmm--sorry to keep on going about this i'm sure i will get it right this week end just want some more info from a CARB GOD.thanks