Quick Jet Question

[Yamaha]

To start I'm at 370 Elevation and about 70 degrees now, my banshee has T-5's, head milled .025, boost botle and boyseen rad valve.

The airbox was removed so I put in a 340 main(was 280) the pilot is still the stock 25, my problem is that it is hard to start (with) choke, and wont start without ,once it is warm it still wont start without it, if I start it with the choke on and warm, it will idle until I let off of the choke then die, it also idles very high with the choke on

 

does this mean I need to go bigger on the pilot? air screw does nothing and carbs are clean

Edited September 29, 2006 by Yamaha

[Bill]

Yea I would go up on the pilot jet,27.5 maybey A 30?Is your choke tube in place?

[dajogejr]

Also...do you have the airbox, lid removed, pod filters, etc??

 

Have you tried the air screws at .5 turns out to see if it's anybetter?

[Yamaha]

I'm running pod filters straight off the carbs, have tried 1/4 turn 1/2,3/4,1,1 1/4 etc etc all the way out an it still does the same thing, will only start with choke hot or cold, harder when cold but once warm it fires first kick with choke on.

I ordered a 30 pilot jet yesterday, it should be in tomorrow, so I'll throw it in there and see how shee acts then, hopefully that will fix her because its all I can think of.

The needle position wouldn't affect idle would it?

 

And also should the slides be bottomed out in the carb at idle or should there be a slight gap?

[dajogejr]

Needle won't effect idle.

You should see a gap from the slide in the back of the carbs...or, the cutaway...

Plus...they're pulled up ever so slightly so the bike will idle...