Trying to get this thing running again,

[rtcc]

ok, I have posted this in some other forums but I havent had much help. The back story is I was riding it and I had a clutch problem so I took it in to have it fixed and then they told me they couldnt start it and that I needed a new computer. So i bought one on ebay and now I can start it...barely. Everytime it was running it would die with any gas at all.

 

So now, it is having a real hard time running, I can get it started with the choke out and then after about 10 seconds it just starts idling down until it dies. So I think the carbs just need to be adjusted to the right spots, but i have recently totally riped them apart and cleaned everything. So I really dont think they are clogged.

So I guess first thing is can anyone tell me a good place to start with all my air screws and idle screws? And second what else sounds like it might be the problem. Could an air leak be causing any of this?

 

please help I have waited almost 5 years to get this thing back up and I am really putting the effort in now!

thanks for any help at all

 

 

Terry

[xXBlessedWithDeathXx]

look over the tube between the carbs and make sure it is connected.

 

under you gas tank to the left in front of the carb you will see wires connected to a black box. disconnect that box from your harness. thats your T.O.R.S. and i never had one but what i was told and seen on here they are nothing but shit.

 

if you want to check for air leaks start your bike and spray your jugs/carbs/intake boot/head with starting fluid. one at a time. if it revs high thats where your leak is.

 

do them all at different times and if your lucky you`ll pin point your problem. you could also turn your air screws out 1 1/2 to 2 turns out.

[rtcc]

look over the tube between the carbs and make sure it is connected.

 

under you gas tank to the left in front of the carb you will see wires connected to a black box. disconnect that box from your harness. thats your T.O.R.S. and i never had one but what i was told and seen on here they are nothing but shit.

 

if you want to check for air leaks start your bike and spray your jugs/carbs/intake boot/head with starting fluid. one at a time. if it revs high thats where your leak is.

 

do them all at different times and if your lucky you`ll pin point your problem. you could also turn your air screws out 1 1/2 to 2 turns out.

 

 

Thanks so much for the reply.

so, tube is connected (u r talking about the choke tube right?) and I have disconnected the TORS. Nothing has changed. I can barely get it started with the full choke on and then it just revs up really high and fast and runs for about 10 - 15 seconds and bogs down. So either its not getting enough fuel or its getting way too much, I cant tell. The plugs are wet but they havent really even been up to temp yet.

 

Another thing, I am running 340 mains and stock 25 pilots. None of that has changed since I first got it about 7 years ago, I rode that jetting forever.

 

oh and as far as I can tell there is no leak coming from the outside. I sprayed as much as I could before it would die but it never changed the idle at all.

So Im still not sure. If I give it any gas it just bogs horribly and dies.

 

I hope to continue narrowing down possible problems and maybe I can get this figured out.

 

Terry

[rtcc]

OK!

 

I got it idling pretty good. Not perfect but alright. First thing I noticed is that the left side has way more exhaust coming out. There is some smoke but I think a normal amount for when its cold. The right side I cant see any smoke but I can feel some puffs of exhaust coming out, but not nearly as hard! So what could this mean? Right side not getting enough fuel or spark or what?

 

 

Second, I had to turn my air screws completely in, they wont go in any farther but that made it at least idle and I can rev it using the throttle pretty good. Does that mean I need to go up in my pilot?

 

 

oh and my lights dont seem to work, it could be completely unrelated but I dont remember them not working before.

 

so I have shed some light on it, but Im still not sure how to proceed.

 

 

thanks!

 

EDIT!!!!

 

ok so I was gonna test to make sure the right side had spark, so instead of pulling the plug I just used a new one in the plug boot and left the plug in the cylinder, well...it started first kick. So it is definitely running on only the left cylinder.

 

but it does have spark, so probably still carb related???

Edited November 6, 2007 by rtcc

[Handyman]

The air screws should be 1.5 -2 turns out from seated. You said that you cleaned the carbs....did you make sure the carbs were sync'd(slides moving at the same time, moving the same amount, they aren't installed backwards),. If it was me. with a 340 main I'd bump the pilot up to a 27.5.

 

Pull the plug out put the plug boot on, ground it and start it and see if you have spark in that cylinder...

try swapping the plug boots from one plug to the other and see if the problem jumps from one cylinder to the

other.

make sure the plug wires are plugged in to the coil...check for corrosion while you have the connectors disconnected.

 

have there been any mods done to the engine/exhaust etc...

[rtcc]

The air screws should be 1.5 -2 turns out from seated. You said that you cleaned the carbs....did you make sure the carbs were sync'd(slides moving at the same time, moving the same amount, they aren't installed backwards),. If it was me. with a 340 main I'd bump the pilot up to a 27.5.

 

Pull the plug out put the plug boot on, ground it and start it and see if you have spark in that cylinder...

try swapping the plug boots from one plug to the other and see if the problem jumps from one cylinder to the

other.

make sure the plug wires are plugged in to the coil...check for corrosion while you have the connectors disconnected.

 

have there been any mods done to the engine/exhaust etc...

 

ok lets see, I started out with the air screws 1.5 to 2 at the beginning but I couldnt get it to take any gas, but as soon as I put them all the way in it would idle and take some gas.

 

I do think the carbs are synced, they move at the same time and stop at the same time.

 

I will switch the boots to see what that does, but it had really strong spark on both cylinders.

 

I have only FMF gold series pipes and a K&N filter with no top on the air box. Stock everything else.

 

I did have a small break through, while it was idling on only the left cylinder I stuck my hand where the airfilter clamps on and restricted the air and it made the right cylinder start up, but then it died right after that. I couldnt keep it running.

 

Does it sound like the jetting is just Way off, cause I always thought 340s were too big but thats what came with it.

 

thakns

[Handyman]

ok lets see, I started out with the air screws 1.5 to 2 at the beginning but I couldnt get it to take any gas, but as soon as I put them all the way in it would idle and take some gas.

 

I do think the carbs are synced, they move at the same time and stop at the same time.

 

I will switch the boots to see what that does, but it had really strong spark on both cylinders.

 

I have only FMF gold series pipes and a K&N filter with no top on the air box. Stock everything else.

 

I did have a small break through, while it was idling on only the left cylinder I stuck my hand where the airfilter clamps on and restricted the air and it made the right cylinder start up, but then it died right after that. I couldnt keep it running.

 

Does it sound like the jetting is just Way off, cause I always thought 340s were too big but thats what came with it.

 

thakns

 

Just for shits and giggles.....if you can....put in a 300 or 310 main jet, 27.5 pilot and needle clip in 3rd position. see if the leaning out the jetting will make a difference. you may be sucking in way too much gas with the big main and a small pilot and drowning the spark. Also in the slide.....where the needle goes there should be a metal piece that the throttle cable attaches to. That metal piece has a hole in it that should line up with a hole in the slide. make sure you don't have the hole covered up...that may be causing some issues there. I had a similar problem with mine last year and the shop couldn't figure it out either after 3 weeks....they did a complete tear down of the top end, replaced everything and it ran fine....they said they didn't know what fixed it but this was some of the things they said they looked at...

[rtcc]

Just for shits and giggles.....if you can....put in a 300 or 310 main jet, 27.5 pilot and needle clip in 3rd position. see if the leaning out the jetting will make a difference. you may be sucking in way too much gas with the big main and a small pilot and drowning the spark. Also in the slide.....where the needle goes there should be a metal piece that the throttle cable attaches to. That metal piece has a hole in it that should line up with a hole in the slide. make sure you don't have the hole covered up...that may be causing some issues there. I had a similar problem with mine last year and the shop couldn't figure it out either after 3 weeks....they did a complete tear down of the top end, replaced everything and it ran fine....they said they didn't know what fixed it but this was some of the things they said they looked at...

 

 

ok yeah, that is what I think I am gonna try next. I dont have any other jets at the moment, so I will have to order some. I have a fmf jet kit I got off of ebay for like 2 bucks coming but I cant find anywhere what comes in it. I will also order some from jetsrus as well.

 

I switched the plug wires and it is all the same, I really think its just crazy off on the jetting which is wierd since I was running it for so long like that, it was always running rich though.

 

I will have to check out the slide, Im not 100% about what you are talking about but Ill give a look.

 

thanks again for all your help

[Handyman]

ok yeah, that is what I think I am gonna try next. I dont have any other jets at the moment, so I will have to order some. I have a fmf jet kit I got off of ebay for like 2 bucks coming but I cant find anywhere what comes in it. I will also order some from jetsrus as well.

 

I switched the plug wires and it is all the same, I really think its just crazy off on the jetting which is wierd since I was running it for so long like that, it was always running rich though.

 

I will have to check out the slide, Im not 100% about what you are talking about but Ill give a look.

 

thanks again for all your help

 

To check the slide you will have to remove the slide completely from the carb.when you look down into the top of it, you will see what I'm talking about.

[rtcc]

To check the slide you will have to remove the slide completely from the carb.when you look down into the top of it, you will see what I'm talking about.

 

 

Ok here is the newest progress report. So, got some jets today, unfortunately they sent me only 1! pilot jet, even though the order was for 2. 27.5's. So I just through in some 320 mains since I was at 340's before and Im trying to make sure Im not to rich. Anyway, it will now start on almost first kick. It will idle just fine, not a high idle at all, but seems about normal. Both cylinders are firing but the right seems a little weak compared to the left but I think its ok, probably just me being paranoid. BUT it still totally bogs down with any throttle, wont rev up with at. It does rev a lot higher when I pull out the choke and does not die. Im not sure what that means.

 

 

oh and another wierd thing, I dont remember how the lights looked when the banshee was idling but I cant see them at all. If I get down and look inside I can see the filament glowing, but not doing anything but that. So do you guys think its electrical? I do have spark at idle but I dont know how to check how strong it is when throttle is put down.

 

Thanks for all the help guys.

[rtcc]

Man, I wish I could just edit my old posts, it would keep it from being so long winded. Anyway, unplugged the TORS and now it will recieve gas.

 

So it does rev pretty well, but the exhaust smells horrific, it smells like I have been sitting behind and old 70's hoopty in a tunnel. BUT I still dont have any headlights so I cant take it for a run tonight...I dont know whats up with that.

 

 

I really dont know enough about this, so I am a little nervous I am running lean, but I have a 320 main, stock 25 pilot and needle is in the middle, so there really shouldnt be any chance of me melting it down should there? and airscrews are 2 out I think.

 

 

please let me know what you guys think, I will run it tomorrow after work in the daylight.

 

thanks

Terry

Edited November 9, 2007 by rtcc