new banshee owner, dont want to burn down!

[Skithis]

Oh my god somebody help me.

 

I put 250's in thinkin it would be fine. Nope, same bog at WOT. Disconected TORS at the box and it ran no different. Disconected it at the clutch cable and it ran about idle only. Put new plugs in and still had the bog. So far ive tried 300, 280, 270 and now 250 main jets all with bog. But its gotten slightly better. When i got the banshee about a week ago it had 200's in it and it ran perfect. idle is perfect, half throttle feels like full and full throttle just bogs and sputters. should i go leaner? or what? The only reason i started changing jetting was becuase i thought it was too lean for pipes and winter.

[Banchetta]

Oh my god somebody help me.

 

I put 250's in thinkin it would be fine. Nope, same bog at WOT. Disconected TORS at the box and it ran no different. Disconected it at the clutch cable and it ran about idle only. Put new plugs in and still had the bog. So far ive tried 300, 280, 270 and now 250 main jets all with bog. But its gotten slightly better. When i got the banshee about a week ago it had 200's in it and it ran perfect. idle is perfect, half throttle feels like full and full throttle just bogs and sputters. should i go leaner? or what? The only reason i started changing jetting was becuase i thought it was too lean for pipes and winter.

So you disconnected the tors AND the clutch switch at the same time? Or did you disconnect one, rehook it then disconnect the other??? Make sure they are both disconnected and LEAVE them disconnected. If they are not failing now, they will...Did you make sure the tube between the carbs is still in place. A lot of people forget about them when changing jets and it'll fall off when you twist or pull the carb out..there should be a 1/4"x 2" tube between the carbs. Also make sure your slides aren't in backwards. Cutaway should face the air box...One more thing, what kind of air filter are you running? If its stock, how much oil is on it...I've seen over oiled filters before w/ so much oil I could wring it out...

My first guess is the tors and clutch switch, my second guess is the choke tube connecting the carbs.

[Skithis]

So you disconnected the tors AND the clutch switch at the same time? Or did you disconnect one, rehook it then disconnect the other??? Make sure they are both disconnected and LEAVE them disconnected. If they are not failing now, they will...Did you make sure the tube between the carbs is still in place. A lot of people forget about them when changing jets and it'll fall off when you twist or pull the carb out..there should be a 1/4"x 2" tube between the carbs. Also make sure your slides aren't in backwards. Cutaway should face the air box...One more thing, what kind of air filter are you running? If its stock, how much oil is on it...I've seen over oiled filters before w/ so much oil I could wring it out...

My first guess is the tors and clutch switch, my second guess is the choke tube connecting the carbs.

 

 

I disconnected the box and rode it, it didnt change anything. I then unplugged the clutch switch and it killed everything. walking speed at most. The choke hose is connected between the carbs. Im sure of it. Slides have never been out of them. Atleast not since ive owned it. Im running a K&N filter, its oiled but dry to the touch. I just dont understand why it wants such a lean condition to run? I dont get it. Im afraid to go leaner. But thats where it runs better. 3 days ago it ran GREAT on 200. So i dont think it could be electrical. Should i try 230's???

[Skithis]

Could it be possible that i bumped float height or a needle or something? I just seems like their is too much fuel to be burned at wide open. As i increase the throttle up to about half it runs like crazy but when the throttle is increased past half it starts loosing rpms and pops. Then if you move the throttle back to half it takes off like crazy. When it is sitting in neutral idling i can grab the throttle and pin it and it just bogs out. But if you blip it a couple times then it will rev up.

 

also im not sure if it matters but i unhooked the TORS at the clutch not at the first connection as you instructed. I can quite get to the first connection behind the radiator.

 

sorry about all this im just trying to give you guys the best description i can. I really appreciate all the help.

 

Should i get a video? or just go leaner and take it easy, see what it does.

[Skithis]

im going to put a new tank of fuel and amsoil dominator 32:1 tommorow also. Weve had a serious cold spell in MI the last couple days and alot of cars are getting condensation. I never thought of this. If it runs good ill have to go back to 300's and repeat the process! ::

[Banchetta]

Be careful using amsoil. I used that for a while, If I let the shee sit a few weeks, the oil separates from the gas and starts really hard...I went back to Castrol...Just a pointer.

 

You HAVE to disconnect the tors (little black box above the left exhaust w/ a 3-wire plug) you telling me that your clutch switch makes a difference is telling me that the main brain is still connected. Disconnect both, the main brain(tors) AND the clutch switch...TRUST ME.

[Skithis]

they were both disconnected at once. When i did this it wouldnt even run above idle. Basically the TORS was doing its job.

[Banchetta]

It should be the other way around...Disconnecting the tors would allow the shee to rev up...the tors acts like a governor....are you sure your disconnecting the correct plugs??? If you disconnect one and not the other, it'll do that...Clutch switch, black box above the left exhaust, also disconnect the two wires coming off the carbs...where do you live? Can you take pics of the plugs your disconnecting....

Edited February 9, 2007 by Banchetta

[Skithis]

will try that tommorow. I put new gas in today and it didnt change anything, doesnt surprise me. tommorow is my day to work on it.

 

disconnect tors to see if it makes s difference, if not then

full carb clean and disassemble.

compression check

[Skithis]

the banshee is fixed.

 

The pilot jet in the right carb was plugged making it seem as if the main was way fat. I ended up puting the 200's i started with back in and it ran terrible even though i started with a good running machine on 200's. Just a coincedince that the pilot got plugged when i started the jetting process. Right now i have 280's in it. WAY TOO LEAN. Tommorow i am working my way down from 350's.

 

 

THANKS GUYS FOR ALL YOUR HELP!

[Handyman]

Don't you just hate it when it's something so simple and feel stupid after finding the problem and knowing you thought about it and just knew that wouldn't be it and it actually was it.......If elt tlike that few times working the bugs out of my shee.. AWESOME JOB ON WORKING IT OUT :beer:

[Banchetta]

Damn, a plugged pilot stopped it from revving out........like I said before, 20 years and still learning....Never had that one. Very surprised it would start and idle though..I told you going lower than a 250 was crazy....lol Let us know what size you come up w/..

[Skithis]

Damn, a plugged pilot stopped it from revving out........like I said before, 20 years and still learning....Never had that one. Very surprised it would start and idle though..I told you going lower than a 250 was crazy....lol Let us know what size you come up w/..

 

 

 

I ended up finishing with a 330! Hard to believe that pro circuits and K&N - airbox lid could flow 60% more air! 13 sizes larger than stock in 20 degree temps.