96 honda 300ex carb question

[obrut]

My quad will idle fine and seems ok at full throttle but its mid throttle that is messed up. I adjusted the valves and it has fresh full and plug. When its idling and i blip the throttle it will almost stall out. But if i slowly raise the throttle its fine. I also noticed that its completely fine if i keep the choke 3/4 closed, it revs right up. so does that mean the needle needs to be adjusted? This is a stock quad with a k&n filter. The pilot jet is a 38 and the main is a 122 which i belive is stock for my quad. Also the clip for the needle jets is in the middle, which way should i adjust it?

[obrut]

I've done some more searching and i'm going to try a 40 pilot, a 125 main and lower the clip on the needle 1 notch and see if this helps, does this sound right?

[HondaR]

i wouldn't change out the Slow jet or the main with just a filter..your going to have more problems ..adjust the fuel air screw or go down one on the clip.. with the K&N filter your getting more AIR meaning you need more Gas..that is the whole point in AIR/FUEL Ratio ..try moving the clip first if that doesn't work adjust the air/fuel screw.. when you move the clip down it makes the needle pull furthur up letting in more gas..when you go up it is the opposite ..hope this helps

[jason4282002]

It could be your compression. mine had a valve that was sticking and it was loosing compression and it would start stalling when i got pretty close to top end.

[bwamos]

Nah, just sounds like his Air Screw is to lean.

Turn it in a 1/2 turn (clockwise) and try it again. The K&N is probably just making him run a little leaner.

As a note.. don't blip it when it's cold.. it will die almost every time.. lol. Gotta let it idle for like 2 minutes before you can get away with quick rev's.

Once the Idle works well, you will want to do a plug check after riding it for a few minutes at 3/4-Full Throttle. White=Lean Black=Rich Brown=Perfect