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Enduro Intake/Carburetion - 2 stroke Jetting, Reeds, Air Filters, etc.


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  #1  
Old 06-04-2018, 10:00 AM
kdxkid kdxkid is offline
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Default 2011 EC300 idle adjustment & more

Hello,

I have a new to me 2011 EC300 - with about under 10 hours on it (bought it used with 6 hours and have 1 ride on it so far).

I haven't touched anything on it, and it seems to be jetted pretty good (ableit I have no other bike to compare it to). Here are a few items I am looking for suggestions on:

1. Idle is too low. The bike seemed a little too easy to stall (slow stuff, when releasing clutch) and also when stopped on the trail (unless I was keeping on the throttle). Hoping this is as simple as an AS or idle adjustment, however see #2 and #3 below.

2. A good bit of black spoog out of the silencer at the end of the day.

3. Power characteristics - I think this is good, although I think I was expecting more snappy power down low?? Up top it definitely pulls hard and feels responsive, however if I am just chugging along not really on the pipe, and wack the throttle open (2nd or 3rd) I was expecting the front to come up a little easier.

If anyone has / had this bike feel free to chime in. I want to know if this is all common - if not I will check the carb for what jets, float height, etc.

Thanks!
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  #2  
Old 06-06-2018, 08:54 AM
kdxkid kdxkid is offline
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Anybody? I really don't know where to start - I have read a bunch of the threads here about jetting, even the database, but am having a hard time finding what to do.
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Old 06-06-2018, 11:30 AM
Neil E. Neil E. is offline
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It likely still has the N1EF needle in it. Until that's replaced with something better you will chase your tail with adjustments.
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Old 06-06-2018, 12:56 PM
kdxkid kdxkid is offline
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Quote:
Originally Posted by Neil E. View Post
It likely still has the N1EF needle in it. Until that's replaced with something better you will chase your tail with adjustments.
What needle should I get?

I live in Maine - sea lever to about 1500 ft, temps from 40F to 90F. Do people recommend the JD Jet Kit? I don't know where to start.
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Old 06-06-2018, 02:44 PM
Neil E. Neil E. is offline
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The JD kit is fine (I'm using the JD red needle). You can do the same for less money by buying specific parts. 90% of the jetting is handled by the needle. Read the jetting threads and get something from a local dealer.
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  #6  
Old 06-07-2018, 04:42 AM
Thompo Thompo is offline
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im on a 2011 250.

I fitted NECW needle (1/2 clip diff to NEDW) as it was locally available for $15.
Cleans up the bottom/mid but seems to take the edge of the hit when it gets on the pipe, maybe making more in mid so the transition isn't as noticeable.

Standard jetting bike was very spoogy, soft on the bottom (which I think like) and came on the pipe hard (don't like so much in technical stuff!). similar temps and elevation (Northern Ireland). It also drank a ton of fuel, 33miles to reserve.

Ran it for 2.5hrs last night motox/grass track coaching session and I still have half a tank left.
Will have to see what sort distance it was vs fuel useage see if it has improved any.

Last edited by Thompo; 06-07-2018 at 05:31 AM.
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