Jetting Database - PLEASE ADD YOUR SETTINGS

[gasgallo]

Bike year & model = 2004 EC300
Temperature (degC) = 5°C-13°C
Elevation (meters) = 200 m
Main jet = 170
Pilot jet = 40
Needle & notch = N1EF first from above
Air screw setting = 1.5 from close
Throttle valve/slide = #7

Results:
nice in almost all situations. ready and powerfull.

 

[stainlesscycle]

updated 5/17/10
Bike year & model = 2000 xc200
Temperature (degF) = 70
Elevation (feet) = 1000-2000
Main jet = 172
Pilot jet = 48
Needle & notch = DDK (2)
Air screw setting = 1.75 turns

bike rips.

richer pilot helped bottom end. harder to keep idling, but runs much stronger with instant power delivery.

 

[clw]

Latest Jetting

Bike year & model = 2001 XC300
Temperature (degF) = 65°F
Elevation (feet) = 20
Main jet = 178
Pilot jet = 45
Needle & notch = JD Red in #4 (from JDK014 kit)
Air screw setting = 1.75
Throttle valve/slide = 7

Results:This needle is a candidate for 1/2 clip settings! #3 is a little too lean with no hit resulting in soft power, bottom very clean, #4 still clean but lets the engine torque off idle and into the mid much better. With a 175 the plug will be tan and read as ideal based on color, but I prefer a step richer, hence the 178, for safety, with the 178 the plug is medium brown and dry, no spooge. Premix 43:1 either BelRay H1R or one of the Amsoil near twins(Dominator or Interceptor) & Shell 93 pump. Anyway, this setup is the best so far after 8 years of ownership. Smooth and progressive power, can even bump up the idle screw and it will idle if needed.

 

[SideshowBob]

Current Jetting-
Pilot- 42
Needle- DDK Middle Slot
Main- 180
Feels Awesome so far. Air Screw is out 2 and an 1/8 to 2 1/2.

250-1500 feet, 60-80 degrees.

Needle might need to come down one for hotter weather, not sure about that yet.

Should be noted that was a 2003 MC250 with the MC CDI and spacer for the reed cage. That should be separated off for database purposes.



This is a different engine (EC250 Racing - 2003) without the spacer and with the EC250 CDI.

50 degrees and clear
Slide #7
48 idle/pilot (2 turns out on air screw)
DDK needle top middle slot
180 main
250-1500 feet

 

[SideshowBob]

This is a different engine (EC250 Racing - 2003) without the spacer and with the EC250 CDI.

50 degrees and clear
Slide #7
48 idle/pilot (2 turns out on air screw)
DDK needle top middle slot
180 main
250-1500 feet

^^^Ended up too rich when it warmed up.

Right now-
55-65 degrees and clear
45 Pilot 2.25 turns out
DDK needle top middle slot
180 main
250-1500 feet

Still not entirely happy with the "hit", think I am gonna try this CCK if I have a few minutes this weekend.

 

[300XCRider]

Updated settings.

Updated Settings:

2009 EC 300

Ele: 0 - 1500ft ASL
Pilot: 40
Main: 180
Needle: JD Red, 3rd clip position
AS: 1 1/2 out (tested @ 70*, will have to do some fine tuning here I suspect)
Mixture: Castrol TTS @ 50:1

Removed reed block spacer.

Very little spooge and plug chops reveal a good color.

 

[SideshowBob]

Right now-
55-65 degrees and clear
45 Pilot 2.25 turns out
DDK needle top middle slot
180 main
250-1500 feet

Still not entirely happy with the "hit", think I am gonna try this CCK if I have a few minutes this weekend.

Updated settings that feel much much better. Cleaner pull from bottom to top, will need to swap to 42 pilot at some point-

Right now-
55-65 degrees and clear
45 Pilot 3 turns out
DDK needle bottom middle slot (1 rich)
180 main
250-1500 feet

 

[2whlrcr]

I could use some jetting assistance on my 2010 XC 300.

Bike came with:

175 main
N1EF needle clip in top position
40 pilot
air screw 2 turns out

Current conditions are:

85F
1 Million % humidity
1000ft MSL

The bike seemed to be running good down low and through the midrange, but was having trouble transitioning onto the main. I dropped down to a 172 main. This was a noticeable improvement, but still some hesitation and then it would explode onto the main. It feels like the needle might still be rich and then the main is pretty crisp. I'm reluctant to go to a 170 main, because it looks like no one has had to go that lean on a 300. I was doing most of the testing in the soft map setting, because this is where I'm going to spend most of my time. In the aggressive setting the transition seemed better, but still some hesitation.

I also received a CHN needle with the extra jets. This needle looks fatter, therefore leaner. Is this what I should be using? Anybody have any experience, or recommend a different needle?

Thanks

 

[2whlrcr]

I could use some jetting assistance on my 2010 XC 300.

Bike came with:

175 main
N1EF needle clip in top position
40 pilot
air screw 2 turns out

Current conditions are:

85F
1 Million % humidity
1000ft MSL

The bike seemed to be running good down low and through the midrange, but was having trouble transitioning onto the main. I dropped down to a 172 main. This was a noticeable improvement, but still some hesitation and then it would explode onto the main. It feels like the needle might still be rich and then the main is pretty crisp. I'm reluctant to go to a 170 main, because it looks like no one has had to go that lean on a 300. I was doing most of the testing in the soft map setting, because this is where I'm going to spend most of my time. In the aggressive setting the transition seemed better, but still some hesitation.

I also received a CHN needle with the extra jets. This needle looks fatter, therefore leaner. Is this what I should be using? Anybody have any experience, or recommend a different needle?

Thanks

I installed a CCK needle and this cleaned it up nicely.

 

[twowheels]

Thanks for posting. It seems like 300s of any color are difficult to get to run clean top to bottom, and you just saved a bunch of work for a whole lot of riders.

 

[john01]

2010 EC 300
80-100*
100-500'
175 Main
N1EF 2 nd clip from the top
42 Pilot
airscrew 2 1/2 turns out
slide (stock) #7
93 oct fuel mixed @ 50 to 1 Amsoil Dominator
Results: bike runs great from idle to throttle stop.

Hey my bike came with a few other jets and a CHN spare needle. Anybody try one of these? BTW where are you guys picking up the CCK needles?

 

[2whlrcr]

I ordered my needle from GoFasters. My bike just wouldn't run with the NE1F.

Current conditions are:

80F
1000 MSL

2010 EC300
170 main
CCK #3
42 pilot
2.5 out on air screw
45:1 fuel

Runs very smooth from idle top, with just a very slight hesitation on to the main. The bike does seem to be a gas hog. About 2 hours on a tank, race pace on tight 2nd gear trails, very little time on the main jet. Not sure if I could make a 2 hour HS without refueling. The bike is still slightly rich, but I like it way, to keep things tamed down.

 

[john01]

Thanks I'll have to give them a call I wanted to get the fork bleeders anyway. I am almost scared to mess with my jetting it seems to run great the way it is but this is my first big 2-stroke and maybe what feels good to me can be improved upon by the CCK.

 

[Skidad]

You can get needles from SUDCO and about any carb part you might need

http://www.sudco.com/

Quite a few reports I recall of the CCK needle getting poor fuel mileage. Perhaps try clip # 2 position or a JD Jetting needle.

 

[2whlrcr]

Thanks I'll have to give them a call I wanted to get the fork bleeders anyway. I am almost scared to mess with my jetting it seems to run great the way it is but this is my first big 2-stroke and maybe what feels good to me can be improved upon by the CCK.

If you like the way it runs, why mess with it? My bike just wouldn't run with the stock needle.

I asked GoFasters about fork bleeders for the Sachs. None available yet, unless you want to drill and tap to a larger hole.

 

[john01]

Well I do like the way it runs but I may not be the best judge of how a 300 should run and it's easy enough to put back like it is if I don't like the change. Hmm I 'll just wait on the fork bleeders, thanks for the info. Thanks for the link Skidad. I don't race so mileage isn't a big deal I just want to try a few combo's and record how the bike feels.

 

[stainlesscycle]

as of 04/06/2011
2000 xc200 with 36mm pwk (NOT STOCK!)

1000ft elevation, 60 degrees f. doma pipe, stock timing

170 main
#1 needle ddk
38 pilot
1.25 turns
#5 slide

bike rips. no bog/hesitation or flat spots. idles great. plug color is correct...

 

[chucky]

Bike year & model = 2010 ec200
Temperature (degF) = 70-90
Elevation (feet) =4000 - 6000
Main jet = 170
Pilot jet =42
Needle & notch = DDK #2
Air screw setting = 2 out
Throttle valve/slide = #6

Results:
Idles perfect , no bog , nohesitation , smooth linear power

 

[cladoo]

My neighbours '05 EC200 was running really lousy and so I put in a #7 slide and it sure seems better now! It has a LT needle but we also have the JD kit. Is the 7 too lean? We reun from 4000ft to 7000ft. Is the #5 slide stock? We brought this bike from an area that has an eleveation of about 750 to 1100 ft.

 

[stainlesscycle]

My neighbours '05 EC200 was running really lousy and so I put in a #7 slide and it sure seems better now! It has a LT needle but we also have the JD kit. Is the 7 too lean? We reun from 4000ft to 7000ft. Is the #5 slide stock? We brought this bike from an area that has an eleveation of about 750 to 1100 ft.

#7 slide is stock i believe on 200 05.