no idle!!!!!!

ok, start from beginning... get the carb back to basics, screw the idle screw in all the way till it stops. turn it COUNTER clockwise till its 1 1/2 turns out. your TORS (brick) on top of the carb is how your setting your idle? if that's the case, you need to take the inspection cover off the unit and move the idle screw till its JUST BARELY touching the arm that moves the slide. then turn it CLOCKWISE 1 full turn. Also, Put in a fresh spark plug(check you gap 028-030)there, now youre at the beginning and not fighting what you cant see. start the bike, if its really idling low, adjust the idle up to about 1100 rpm. to the ear it sounds like its running a little bit higher than normal, same goes for the reverse, if its idling really high, turn the tors idle screw COUNTER CLOCKWISE till you reach the above rpm or where it sounds good, a little high but good. when i do my air screw adjustment from 1 1/2 turn, turn it CLOCKWISE 1/8, just to see if it starts to die. if it does, i go and turn it BACK to where it was(1 1/2) and start tuning it from there by turning it COUNTER CLOCKWISE 1/8 turn increments allowing 5-10 seconds between turns to give the motor time to adjust. the highest idle is sometimes REALLY hard to discern(hear), i usually go till it sounds smooth. thats pretty much how i do it. with your mods and exhaust and elevation,(im at 320asl) i ran a fmf fatty with a 270 main, 32.5 pilot and needle on the 2nd clip down(lean) and it ran cats azz!
if it were me, id take the carb off the bike, clean it 100% set everything (idle screw on tors, main jet,needle, air screw, float level) while it was off and start from there.this way your not fighting stuff while its on the bike and your able to check your float height, that could be another culprit. making sure your airfilter boot is clean and your intake boot also. what else you got to lose? its not idling so try to get back to a starting point and try again.
 
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Blaaster said:
Hold the carb as depicted in the pic, making sure that you do not touch the float, and that the tang is riding on the needle.

Measure the distance as shown in the pic.

Adjustment is made by gently bending the tang..

239m3m.jpg


Take note if your tang looks pitted like this one it is in poor condition.
Click to expand...

See his arrow to the pit ? the indent. that is the tang.

the indent is where the needle / seat sits on and the float raises and lowers the needle / seat, sitting where you see the indent on the tang in the picture.

Now, as it is in the picture. you would push the tang, down just a tad, tiny amount, if you feel that the float is closing to early . stopping the fuel.

If you feel, you are getting to much fuel, you would bend it up, as seen in the picture.
 
Ok I will take apart the carb. I don't no how to clean it, I have NO tors I'm using the air and idle screw on the side, I already reset them how you said to. New plug in, same gas as when it was idling, at 32:1 again where to where do I measure and sorry but where's and what is the seat? The rubber on float is good. anyone have vid of how to adjust float? Mjgnslngr explained well I just don't wanna mess it up more. Thank 4 the help everyone btw I'm 250 feet asl and that's means I'm a I'll richer on the jet. I'm at 290 main and not fowling plugs. I think I may have bumped the float when I was changing jets yesterday...if I cant plug chop is 290 good you think?? My plug gap Is Alway .30 and I don't mind if I'm a bit rich
 
Fron you 260 to my 320 is minuscule. You would notice humidity more than our difference in elevation. You measure the float from the gasket surface on the carb body (gasket removed of course) to the top of the float itself. (this is with the carb turned upsidedown. You can set it on a level surface and either eyeball it or place something SUPER LIGHT like a toothpick on top of the float to project level to whatever you use to measure. If you don't have a float gauge, (it looks like a tiny framing square, L shaped, you can download a mm ruler, print it, cut it small enough to handle and try that. I have a few left over from Standard carb rebuild kits from cars I worked on and it's been a handy little blastard. Blaaster told you the measurement earlier in this thread.
As far as cleaning it proper, jsparky has a how to vid on it. Actually, he's got a sh*t ton of carb vids you should look at. Granted he's doing it on a banshee carb but it's the same 26mm mikuni! Check him out in the dyi section. He might even have one to show you how to set float height correctly. Give them a look and get back to us. Good luck bro!
heres what i meant about measuring...help make it simpler for you. this is the proper float height and where to measure from and what your looking for... note; this float is set at 21mm
photo-1.jpg
 
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in the pic are you eyeballing it? also i checked his vids he has no float set video, but how do you move the float up or down to chage the float height, i downloaded A mm ruler! also is 21 mm the correct float height?
 
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Yes, looking at how I took the picture shows you how to eyeball it level. See how the float is at 21mm? To raise or lower it you must move the (tang) up or down. Thats the part that blaaster showed you in the other pic he posted Just look at the pic, if I needed to Raise my float, I would bend the tab up, making the float go down in the carb. If I wanted to lower my float, I'd bend the tang down, making the float sit hIgher up in the carb. See? Did you find them vids???
 
actually float is corect i just checked again, could the main jet being to rich cause it not to idle and for air and idle screw not to work?? EDIT! I think the float is actually a mm to high so should i move the tang down? and how do i bend the tang????????
 
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you can bend the tang with a small pair of needle nose pliers. dont squeeze too tight you just want the tang to move, not twist the float frame. id start with a 270-280, i think for what mods you have a 290 is rich. did you spray out ALL the passages in the carb? take out ALL the jets? air screw? choke? needle n seat? did you examine the needle to see what position the clip is at? what size is the pilot? did you REALLY clean the carb spotless??? you CANT half ass clean these things, one tiny sand particle in your pilot and youre fuct!you can take a paper towel and wipe out the excess fuel from the intake boot. be careful not to damage the reeds, there just under that boot. same with the air filter boot. id cleanyour air filter while youre there. if youre getting sand in the boot, its coming from the filter. make sure you use a GOOd quality foam filter oil (if you have a foam filter, lol! if you have access to an air compressor, even Better. blow it from the inside of the filter out after you wash it. wipe out the sand and crap from the tube and re assemble the same was you took it apart.
 
mjgnslngr said:
you can bend the tang with a small pair of needle nose pliers. dont squeeze too tight you just want the tang to move, not twist the float frame. id start with a 270-280, i think for what mods you have a 290 is rich. did you spray out ALL the passages in the carb? take out ALL the jets? air screw? choke? needle n seat? did you examine the needle to see what position the clip is at? what size is the pilot? did you REALLY clean the carb spotless??? you CANT half ass clean these things, one tiny sand particle in your pilot and youre fuct!you can take a paper towel and wipe out the excess fuel from the intake boot. be careful not to damage the reeds, there just under that boot. same with the air filter boot. id cleanyour air filter while youre there. if youre getting sand in the boot, its coming from the filter. make sure you use a GOOd quality foam filter oil (if you have a foam filter, lol! if you have access to an air compressor, even Better. blow it from the inside of the filter out after you wash it. wipe out the sand and crap from the tube and re assemble the same was you took it apart.
Click to expand...

ok well how the hell am i supposed it bend it like in the picture, thats hard im trying right now!!?!
 
first thing, you must REMOVE IT from the carb! that'll help! you gotta move it ever so slightly, put it back on an measure. if its not enough or too much, same thing remove it, bend it, re measure. it takes time and patients...
 
mjgnslngr said:
first thing, you must REMOVE IT from the carb! that'll help! you gotta move it ever so slightly, put it back on an measure. if its not enough or too much, same thing remove it, bend it, re measure. it takes time and patients...
Click to expand...

yes im doing so...but do i just bend it so it looks like the one in that picture or just bend it up, im just bending it up right now and its at an angle, the bend dont look like the on in the pic
 
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