2011 EC 300 jetting for 5000-7500ft??
 

Just became a member of the GasGas club. Bought a 2011 EC 300. What are you guys running for jetting for higher altitudes 5000-7500 ft? Should I just buy a JD Jetting kit and call it good?
thanks

I just ran my '03 MC 250 for the first time at 7000 ft outside of Denver with the JD jetting kit. 168, Red needle 3rd position which is recommended on the kit. It is about 95% of the way there without doing much else. Another guy in town ran it as well with great results reported.

2010 300. 4-8000' 55-80'F

I was just gonna get a JD Kit like I have countless times in the past but decided to do it myself after snooping around this site

38, N3CH #2, 175. Have had great luck with this jetting, and a thank u to those who helped. Can get about 70 miles a tank

There are a couple great threads on the site

Just got back from Salida,CO. We rode from 7,000 to 13,000 feet and my bike ran fine off the bottom and on top but was rich in the middle to the point I was getting a good amount of spooge I shouldn't have had. Never fouled a plug, never got hot even on long, hard, technical climbs that required constant clutch slipping. Mileage was over 25mpg (65-70 per stock tank) My 07 300 got over 30mpg last year but it had the RB head mod.
2011 ec250E 36mm carb N3CH 2nd clip from top #7 slide 165 main 42 pilot

Jetting
 

Going thru my jets and needles I found a DDJ, N1EC and a blue JD jetting needle for a Husky WR 300 with a PWK carb on it. Will any of these work?

4000-and up Jetting for GasGas 2011 ec300
 

Here in Moab on my 2011 ec 300 38mm carb I found that n3eh in middle 148-150 main and 40p with 80-1, 2oz oil per gal the bike rips great .
the n3ch is the same just as n3eh its just 1/2 clips sizes apart

Spooge
 

You can run the GG @ 100/1 but I wont go there 80/1 works great I just had the top end off to check it out lots of oil in the piston rist pin area rings piston and cylinder look like new 1500 miles on it 148m 40p n3eh

Called a local dealer and he suggested a stock YZ 250 needle in middle clip along with 160 main. Pilot is a 40. Rode it around the neighborhood and it seems like its working. Will be awhile til I get her in the dirt. Ill report back

Thats a small main mate. I'd be very careful going that small unless if you have a 36mm carb. That would make more sense.

I'm running a YZ needle. N3EW at clip 2 with a 42 Pilot and 178main which I will drop when it warms up some more.
25C+ / 80F+
300M /1000FT

I'm running a 152 main with DEP sudco needle, third clip in a 36mm carb(2011 ec300)....90 hours.
Little higher elevation....8000'-13000'

jz