I need a little jetting opinions here.

I just got back from a riding trip and I have some jetting to do. Any help would be great.

I've got Craycraft porting, 11:1 686, and stage 1 Hotcam.

History:
1st try: Jetting: GYTR needles 3rd notch, 25 pilots, 3 turns on screws, 180, 185 mains, floats way too high (6mm and 9mm above mating surface), EHS racing airbox lid (basically the whole top of the lid is cut off and replaced by an outerwear cover). Result: Would run great at low throttle openings, but sputtered over about 1/2 throttle. Removed airbox lid and seemed to run fine but this was during break in so I couldn't go full throttle for any appreciable amount of time. I want to run the lid b/c I ride in mud, streams, etc if I have to.

2nd try: Jetting: GYTR needles 2nd notch, 25 pilots, 3 turns on screws, 180, 185 mains, floats way too high (6mm and 9mm above mating surface), EHS racing airbox lid (basically the whole top of the lid is cut off and replaced by an outerwear cover). Result: Same result as above. Had to remove lid for it to run OK past 1/2 throttle.

3rd try: Jetting: GYTR needles 3rd notch, 25 pilots, 3 turns on screws, 180, 185 mains, floats about 2mm above the mating surface (couldn't get em any lower. I couldn't bend the tab any more with it mounted on the carb and I didn't remove it to bend it further). Kept airbox lid on. Result: Seemed to run better than before with the airbox lid (I guess b/c of the float adjustment leaning it out a bit) but still didn't like to run well at full throttle. Sputtered and missed on the way to full throttle. Didn't seem to have the top end that it should. I ran most of the day with the choke engaged slightly to richen it up and I could get it to run well and not sputter on the way to the top end but still wasn't perfect. Also, the added fuel from the choke seemed to bring back a little of the top end.

My theory: Seems like for some reason, that it went from way too rich to just a little lean, all from the float adjustments. But, the floats still read as being too high ( I used sixsixt's clear tube method). Maybe at the level that they are set now, the gas isn't flowing in to the bowls fast enough for the demand at full throttle.
Also, perhaps the needle should go to the 4th notch, but I don't think this has any effect at full throttle.
I could richen up the mains as well, but I'm not sure if that is the problem. I really don't know if I'm lean or rich but seems lean due to the fact that giving it more fuel with the choke enrichener seems to clear it up a bit.

Any help would be great. I haven't done a plug chop yet b/c it was so freakin' muddy out there that I figured I'd drop some dirt into my new motor with my luck.

Thanks and Happy New Year to everyone!

 

To the top.

I know I can't get it spot on from anything but trial and error but was just looking for opinions.

Thanks

 

To start the EHS lid doesn't seem to flow very well so I think those mains are probably too much maybe 175/180 or 172.5/177.5.
Next, bending the tabs that far to get the float level right may not allow your floats to drop enough. There is a small plastic stop on the float and it would help to file that down if that is the case. (this may be the biggest problem)
Running without an air box at all we're closer to 2 1/2 turns out on the mixture screws than 3 turns.

What does the plug look like?
Do you have the over flow tubes hooked up to the bottom of the carb and not plugged up?

 

Slappie, give me a call I have some things that will help you.