Possible Jetting Issue

[kabner]

I am sure this has been covered many times but it has been hard to find a specific answer so I figured I would post my own issue.

 

I recently purchased a 98 Banshee that is basically stock outside of Fatty Gold Series pipes. The machine had sat for a while so I rebuilt the carbs for general upkeep purposes and I used a stock rebuild kit on both carbs. Following the rebuild the machine will not idle without the choke on and instantly dies when I turn the choke off.

 

I did notice when I rebuilt the carbs that the main jet was a 280 and which I replaced with a stock 200 jet. Could this change be the reason the machine will not idle without the choke since it has aftermarket pipes?

 

Side note:

I adjusted the idle to a point it idled quite high with the choke on but it still died when I turned the choke off. I am in fear I could seize the piston if I am not careful. Also, I disconnected the TORS system due a malfunction that caused the motor to bog at half throttle.

 

Any advice would be greatly appreciated.

[SNTBANSHEE]

Aftermarket pipes require rejetting. Put the 280's back in and go from there before you blow it up.

[BuckeyeShee21]

Well more than likely there was a 280 main in there because that's what it needed. What is your pilot jet size? Are you running an airbox lid? Get that 200 back out of there

[06specialedition]

Your going to melt your motor down with those 200's. Start rich and work your way down. 290-300's and go up or down from there. Also fmf's like a larger pilot too, 27.5

Edited May 2, 2012 by 06specialedition

[kabner]

Thanks guys. I figured that was the issue. I can not remember what the size pilot was but I will have it and the 280 main back in by this weekend.

[kabner]

Well I got the original (aftermarket) main jet and pilot in. I could not see what size the pilot was. Now the machine will idle fine with the choke on. When I turn the choke off it idles a little higher for a few seconds, then what sounds normal for a few seconds, and then it dies. Any ideas?

 

I have gone through a variety of air screw and idle adjustments. Seems to do the same thing no matter what I do.

[erickson483]

Did you connect the choke tube again after you took apart the carbs? I'd check that.

[kabner]

Choke tube is connected. I placed the needle in the same spot as it was also. It seems like it isn't getting the gas it needs. The floats tested fine when I had the crabs apart. I am not real keen on how reeds work so I will probably check that next unless you guys have a better idea.

 

I will say this, I would like it to be running so I could ride but it has been fun messing with it. My wallet doesn't agree....

[98shee4mm]

Set the mixture screw at two turns and since it still has the tors adjust each tors unit to adjust the idle but keep the carbs in sync

[kabner]

I have tried that. Still died

[98shee4mm]

Ok you said you unhooked the tors but did you unhook the sensor wires from thumb throttle and from the box to the left of your coil as if you are sitting on the machine

[kabner]

I unhooked the connecter that runs from the parking brake to the front of the frame behind the radiator.

[Strm Trpr]

I unhooked the connecter that runs from the parking brake to the front of the frame behind the radiator.

You need to disconnect the TORS Brain Box.

 

When sitting on your bike, it's just under the front left mount of the fuel tank.

[kabner]

I figured that was what I unhooked. But now I realize I never disconnected anything running from the TORS box to the carbs. Thanks for the help. We will see how that goes tonight....