what shall i do carb related question

im no whizz on carbs by any means but ive been getting so pissed off with my bike struggling to stay alive when cold and hot that i thought id try ajust the idle. so i took the seat out etc and started by adjusting the screw (flatheaded screw) on the left i screwed it a turn to the left and then another screw to the left it made no noticeable difference what soever so i turned it back to original position and turned it the other way. 1 turn and then another turn it also made no difference certainly to the tickover. i then moved onto the screw to the right i believe it has a slight copper colour too it. i started by screwing it inwards and the idle seemed to get stronger. i took it down the road and it seemed to over rev quite a bit when i stopped and when i let go of the throttle it seemed to take about 2 seconds to return to idle. and when i pulled the throttle back frum idle to full it bogged out a treat. so i turned it outwards until it didnt bog out and didnt over rev. but now the idle is quite poor. the bike runs very smoothly like going along but idle is poor. im aware that my bike is auto choke and the battery is fucked but i doubt this could make a difference. waht could i try now??
sorry for the carry on.

p.s before adjusting th carb i cleaned out the float bowl a waste of time as it was pretty much spotless in there anyway. thanks

 

bump!

 

well the idle screw is on with a spring on it so keep trying to turn thtat see if it makes a difference, i think u turn it left to increase the idle but not too sure. just one thing i fucking hate carbs! they are shit nothing but trouble from experience

 

the one with the spring what you on about? where is it located on the carb my carb is a gurtner one i think.

 

gutner carb dont have a visible spring iirc when i adjusted mine i took the panel of above the neck of the oil bottle under the hinge if the seat and used a small electrical screwdriver to adjust because of the bad angle i think it is the one closest to the top on the exhuast side which is the idle. notice i said THINK so dont hold me to it

 

i think your right its the one on the left. is it a flatheaded screw yeah?

 

mate i have a gunter carb and my screw has a spring on it! the one on the left i think has like a flat head screw inside a sorta bowl nd the other one has a cross head with a spring :bird:

 

why dont u just read the guide on carbs on here, it is more helpful

 

More helpful than the post above? :wtf:

But yeah, that guide is good, I've had a read and got more of a understanding now.

 

mate ive read the lot. i havent adjusted the idle speed minor i think ive been adjusting the mix screw. its not far off being perfect i reckon a screw or 2 to the left and it will be ok as currwently its lagging slighty when i tiwst the throttle from idle to full. its the idle speed.tickover i need to adjust. cheers for the help. :beer:

 

in plain english atm the idle is wank the bike struggles to stay alive on tickover. atm the mix screw is close to being perfect but there is a bit of lag when i blip the throttle however i have noticed it gets better when i turn it outwards. so tomo im going to turn the mix screw a turn to the left and get it setup proper and im going to turn the idle screw a turn or so to the left as i believe this makes the revs higher.

 

cheers minor running much better now :beer: