2010 EC300 Factory Jetting Specs - WTF?

[2whlrcr]

Originally Posted by swazi_matt

What is the difference between n3ch and n3eh?

My bike was running fine but now having issues. First thought the choke was sticking open. And today I filled the bike up, kitted up turned the gas on and had fuel pouring out of two of the overflow pipes.
Is this why I can only get 65km on a tank?

Check your float level. I lowered mine significantly from stock.

[2whlrcr]

I'm also running a 175 main at about 1000MSL and 50F in my 2010 300. I will be going leaner as it warms up. My plug is a little on the rich side.

[Jakobi]

Originally Posted by swazi_matt

What is the difference between n3ch and n3eh?

My bike was running fine but now having issues. First thought the choke was sticking open. And today I filled the bike up, kitted up turned the gas on and had fuel pouring out of two of the overflow pipes.
Is this why I can only get 65km on a tank?

As mentioned, check your float height regarding the bike loosing fuel while on the stand. You want to be able to lay the bike over to 45 degrees either side before it will overflow.

The difference between the needles is 1/2 a clip position. This applies to the entire N3C/E range.

N3CH#2 = N3EH#1.5

[Jakobi]

Originally Posted by swazi_matt

What is the difference between n3ch and n3eh?

My bike was running fine but now having issues. First thought the choke was sticking open. And today I filled the bike up, kitted up turned the gas on and had fuel pouring out of two of the overflow pipes.
Is this why I can only get 65km on a tank?

Also, as far as fuel consumption goes, I did just over 70kms on my setup, and can still see the fuel around the 3L mark on the left hand side of the tank.

[coopernicus]

Dumb question: What ratio are your running for pre-mix with the N3CH needle? I have a friend trying to get a stock 2010 300 just right and the deadness right off of idle here between 5280 and 8000 feet is resisting the needles we have at hand (stock, CEK, LTR, and N3EJ), a wide range of pilot jets (38-52), and slides (we tried an 8 and a 9). He is running 44:1 unleaded premium pump gas. Other than this the bike runs really well on the N1EF...The ultimate solution may be adding a tooth or two to the rear sprocket but he would like the option of running stock gearing for long distance rides. Thanks for the info!

Eric

[Jakobi]

Originally Posted by coopernicus

Dumb question: What ratio are your running for pre-mix with the N3CH needle? I have a friend trying to get a stock 2010 300 just right and the deadness right off of idle here between 5280 and 8000 feet is resisting the needles we have at hand (stock, CEK, LTR, and N3EJ), a wide range of pilot jets (38-52), and slides (we tried an 8 and a 9). He is running 44:1 unleaded premium pump gas. Other than this the bike runs really well on the N1EF...The ultimate solution may be adding a tooth or two to the rear sprocket but he would like the option of running stock gearing for long distance rides. Thanks for the info!

Eric

I personally run GRO Synth 7 50:1 as recommended by GasGas.

The N3EJ is leaner off idle than the N3CH. You need to determine if you are lean or rich off idle. Does it burble? or hesitate? Boowang!!? Wahat effect does the air screw and idle screw have? Are you getting any spooge? does the plug load up if you chug around for a while?

You are at some altitude, but have not specified temp.

[coopernicus]

Jakobi,

Sorry, I should have added that info:

Rich or Lean: Rich...I had him pull off the seat and filter and ride it in the cold air! It ran better but it's not practical!
Temps: 45-70 degrees F
Burble: No, deadness as in "no significant power"...Can overcome by adding more throttle and clutch slippage. If sloppy or tired, the bike will stall pulling out like a 125.
Air Screw: Does not help that much...
Spooge: We always get spooge at altitude...Not much, though, compared to my fine running older bikes!
Load up: No, it does not seem to load up.

He's looking to buy some needles and just wanted to know what ratio folks are running to factor that into his decision. Thank you!

Eric

[Jakobi]

http://www.gasgasrider.org/forum/showthread.php?t=9517 ??

[swazi_matt]

thanks guys will strip it down again and lower the float level (i rarely ride flat open so may drop it a fair bit)

also thinking of changing to a from a 175 to a 172 main and a 40 to a 38 pilot

ride mostly between 600-1200m in either hot/humid or warm/dry (which is the season we are heading into)
will also disconnect my cable carb!

[swazi_matt]

Originally Posted by Jakobi

As mentioned, check your float height regarding the bike loosing fuel while on the stand. You want to be able to lay the bike over to 45 degrees either side before it will overflow.

The difference between the needles is 1/2 a clip position. This applies to the entire N3C/E range.

N3CH#2 = N3EH#1.5

so basically my needle is 1/2 a clip position leaner than your N3CH?