I'm frustrated. I haven't run my HS in awhile and now I'm having some problems. It runs with a lot of throttle and choke, but doesn't idle at all. I have put a performance filter and exhaust on it and maybe that's the problem. Drilled out the jet to a #71 and checked valves at .003 for intake and .005 for exhaust. The choke has to be on almost all the way for it to even run, and as soon as I try and idle it down it dies abruptly. Is it the adjustment screw, or do I need to drill the jet out more considering I'm having to choke the engine and set the idle really high to keep it running?
ive had this problem i now solved it after tons of messing around and trying diffrent things..
first empty all the gas out.. pull out the petcock and clean the filter with brake cleaner or gas pour gas in the tank slosh it around a bit empty it repeat again
next go but a paper inline gas filter from orielys about 2 bucks or so
replace the fuel line and put in the filter
theres a screw on the motor thats black on top of the carb get a philips and a flat head screw driver
unscrew the screw that makes the throttle go up or down pull the screw out dont loose it.
next take the flat head stick it under the black plug looking thing where the screw was cant miss it pry up gently
this is the idle jet
take a super small needle from your moms sewing kit and be careful not to make the hole bigger other wise it wont idle ever.. if you have a brass insert it wont matter then but the plastic ones will get bigger if your not careful..
stick the needle or something that will fit in the idle jet hole run it back and forth use some gas in a cap dip it in that.. you now have a clean idle jet
these jets are super small small as a human hair if not smaller they get cloged
you will have to replace the orings i will give you a secret where to get them harbor frieght item number 67609 $2.99 you get like 20 of them they are in the second part of the container top row cant miss em.. cheaper then buying them from that other guy that charges a dollar each plus shipping
now replace them be gentle use silicone lubricant only as it wont damage the orings.. or if you dont have that use gas but stick it back in the way it came out fast gas dries fast.. if you stick them in dry they will bind up and break..
put black idle screw back in
next take off fuel bowl on carb empy and clean it out put it back in
put fuel in start bike up run for a while..
there you have it it shoudl run good now if it dont pull the carb off and borrow your friends sonic cleaner also from hf and sonic clean that biootch make sure to use distilled water and soap just a tad of soap
clean it out with distilled water then blow it out leave it out over night to dry put back together
do this if the above dont work
i have done this and the paper gas filter is the only thing that stops gas deposites from cloging up that stupid idle jet..
hope this helps
