PA-rider Posted June 27, 2009 Report Posted June 27, 2009 (edited) well my old top end was beat both cylinders had ware marks going up and down them. so i picked up a used set with low hours off ebay with wiseco pistons. they looked good i did a light hone and threw them on the motor with new gaskets and i got her together. and i upped the jets cause it was running lean last time thats why the old cylinders took a shit on me.. i upped it to a 30 pilot and a 280 main. and she will start and idle fine but when i pull in the clutch and drop it in gear and go to give it a little gas it just drops off and dies =/.. i did try pulling the choke out half and it pretty much did the same. any ideas what it could be i am not thinking it lean cause thats kinda a big pilot right?. it only has toomey t5s and boisen reeds.. i was told the cylinders were ported but i dont no.. and what is the yellow wire on the wiring harness off the stator cause when i let mine run that wire gets pretty freaking hot ?. Edited June 27, 2009 by PA-rider Quote
AKheathen Posted June 27, 2009 Report Posted June 27, 2009 30 is probably too big, but start by moving the needles around, and adjusting the airscrews to get it good enough to do a plug chop to check the mains. the yellow wire is your lights. check for a shorting wire somewhere Quote
PA-rider Posted June 27, 2009 Author Report Posted June 27, 2009 http://s59.photobucket.com/albums/g296/ron...icture082-1.flv http://s59.photobucket.com/albums/g296/ron...icture081-1.flv ok thanks for the fast reply, ill try messing with the air screw, i did try and get the needle out but the guy befor me stripped the screws out =/.. there is a vid of how it ran befor thats why i was told to upp the pilots.. i have some 27.5s i may give them a try.. you can hear it bogging down in the vid.. Quote
PA-rider Posted June 27, 2009 Author Report Posted June 27, 2009 i was messing with it i got it to idle better. but it still dies/boggs down under load. now if i pull it out to half choke it gets better so i think i am still lean on the pilot?. what does it mean when it spits or back fires out 1 of the pipes?.. Quote
AKheathen Posted June 28, 2009 Report Posted June 28, 2009 fouled plug or airleak. check for airleaks. check the choke tube between the carbs. check your silencers for restriction, and change the plug. make all adjustments with a warmed up engine. generally, on the airscrews, i find that it likes 1/2-1/4 turn in from where it idles the highest. you're gonna need to get to the needles. most likely will want the needles in the middle clip, so if you can see that they atre there (there is 5 grooves) through the retainers, then you should be ok there. Quote
PA-rider Posted June 28, 2009 Author Report Posted June 28, 2009 ok thanks.ill try messing with it again today ill pick up a couple new plugs and give that a try also. the choke tube is good i know that cause when i jetted the carbs i forgot the put that on and i started it and it ran like crap then i put it on and it ran alot better.. ill check for airleaks also i guess lol.. Quote
PA-rider Posted June 29, 2009 Author Report Posted June 29, 2009 i messed with it some more and checked for airleaks i sprayed some wd40 around the carbs and intake and head and there was no spike or anything. it stills sounds bad when i drop it in gear and try and give it some throttle. i am thinking its still lean on the pilot jet maybe.. i may pick up a 32.5 and a 35 and try them out see what it does. Quote
PA-rider Posted July 1, 2009 Author Report Posted July 1, 2009 (edited) yea i think it was the needle clips. cause i pulled them to see where they were at and they were at the last clip on the top end they had a couple little washers under it pushing the needle up more. so i removed the washers and put it in the middle clip and it did seem to do some what better under load when running. Edited July 1, 2009 by PA-rider Quote
91/99 banshee Posted July 3, 2009 Report Posted July 3, 2009 yea i think it was the needle clips. cause i pulled them to see where they were at and they were at the last clip on the top end they had a couple little washers under it pushing the needle up more. so i removed the washers and put it in the middle clip and it did seem to do some what better under load when running. ok, i am having somewhat the same priblem. i am new to banshee's. so first, what are the needle clips, and where is the choke tube. i took the carbs off of mine, and put them back on after replacing the throttle cable, and now it wont start with pulling it. and before when it was on one cylinder it would start first kick. so where is this choke tube and needle clip. let me know thanks. sorry if i trashed your thread man, didn't mean to, just interested. thanks in advance. Quote
PA-rider Posted July 3, 2009 Author Report Posted July 3, 2009 its cool. the needle clip is on the slide. you have to pull that out and where the throttle cable hooks into the slide. there should be 2 screws take them out and you needle will come right out and you will see what clip its on.. the choke tube is just a little rubber hose and you should see where it slides on just on the other side of the choke http://www.rb-designs.com/Banshee%20carb%2001.jpg there is a pic . Quote
AKheathen Posted July 4, 2009 Report Posted July 4, 2009 http://s59.photobucket.com/albums/g296/ron...icture082-1.flv http://s59.photobucket.com/albums/g296/ron...icture081-1.flv ok thanks for the fast reply, ill try messing with the air screw, i did try and get the needle out but the guy befor me stripped the screws out =/.. there is a vid of how it ran befor thats why i was told to upp the pilots.. i have some 27.5s i may give them a try.. you can hear it bogging down in the vid.. just now watched the vids. you need to tune for a warmmed up bike. run it for a couple minuets, then cruise around for a couple, then hit it hard for about 2 sec. then start adjusting for what i needs. if 30 isn't big enough, you have other issues. t5's like 25's normally. check your silencers to see if they need repack. fresh premium. check reeds. 91/99- check your float bowls. notice in the pic which one has the little brass bead in it. that's how it should look Quote
PA-rider Posted July 4, 2009 Author Report Posted July 4, 2009 just now watched the vids. you need to tune for a warmmed up bike. run it for a couple minuets, then cruise around for a couple, then hit it hard for about 2 sec. then start adjusting for what i needs. if 30 isn't big enough, you have other issues. t5's like 25's normally. check your silencers to see if they need repack. fresh premium. check reeds. 91/99- check your float bowls. notice in the pic which one has the little brass bead in it. that's how it should look in them vids i would be lucky if i could ride it it wouldn't run good under load. but i picked up some jugs with pistons and got it running pretty good now. the needles were out out of wack they were on the last clip blunt side and they both had a couple washer pushing up the needles. i moved them to the 3rd clip and it does better. i may try the 25 pilot. cause i dropped the 27.5 in there and turned the air screws out to 2 1/2 turns out. and both carbs are clean and the floats are working fine. what brass bead?. Quote
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