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Jetting Database - PLEASE ADD YOUR SETTINGS
Here is a summary of the Jetting Database:
Click Here --> http://www.gasgasrider.org/forum/showthread.php?t=3800 ---------------------------------------------------------------------- How to enter your jetting data: I thought it would be useful to start a GasGas jetting database. The goal is for people to just list what they are using (or have used). It will be important to follow a "common format" in order to allow quick comparison of data. IMPORTANT: It will be beneficial that users list only ONE bike setup per post. If you have several temperatures/conditions for the same bike, please list them in separate posts. Likewise, if you own multiple bikes, please list them in separate posts. Also, please do not post questions in this thread. If you have a specific questions, start a separate thread so others can respond. Database Format {Copy & Paste the following lines in your post} ------------------------------------------------------------------------- Bike year & model = Temperature (degF) = Elevation (feet) = Main jet = Pilot jet = Needle & notch = Air screw setting = Throttle valve/slide = Results: ------------------------------------------------------------------------- Thanks! |
Bike year & model = 2007 EC250
Temperature (degF) = 25-35 degF Elevation (feet) = Sea level to 1000 ft Main jet = 185 Pilot jet = 45 Needle & notch = LTR, #3 notch Air screw setting = 1 turn out Throttle valve/slide = #7 Results: The throttle response was good from idle to 1/2 throttle (i.e., the pilot and needle clip were good). With the 180 main jet, I'm getting some hesitation around 1/2 to 3/4 throttle. I changed to a 185 main jet. This helped the upper range. I noticed the bike had hesistation around 1/4 to 1/2 throttle in rain mode. In sun mode, it felt better. Also, I use Amsoil Dominator at 40:1 mix with 94 octane fuel. |
2003 MC250
Temperature (degF) = 40-85 degF Elevation (feet) = Sea level to 5000 ft Main jet = 172 Pilot jet = 35 Needle & notch = N3YF, #3 notch Air screw setting = 1.5 turn out Throttle valve/slide = #9 Amsoil 100-1 Results: Throttle response is outstanding everywhere, very good idle and very good cold start properties as well. |
Bike year & model = 2005 EC300
Temperature (degF) = 30 - 60 Elevation (feet) = sea level to 4000 Main jet = 172-175 Pilot jet = 42 Needle & notch = CCK #3 Air screw setting = 1.5 - 2 Throttle valve/slide = #7 Results: Bike has RB headwork. This jetting results in a smooth power taking advantage of the headwork and making the power smooth, yet ample. Prior to the headwork, I used the LTR needle,#3 clip position and the #8 slide. |
Bike year & model = EC300 2003
Temperature (degF) = 32 - 55 Elevation (feet) = 0 - 1000 Main jet = 180 Pilot jet = 42 Needle & notch = CCK #3 Air screw setting = 3 Throttle valve/slide = #7 Results: Smooth |
Bike year & model = 2007 EC250
Temperature (degF) = 45 - 65 degF Elevation (feet) = Sea level to 1000 ft Main jet = 182 Pilot jet = 48 Needle & notch = LTR"-0" #3 Air screw setting = 1.5 turns out Throttle valve/slide = #7 Results: Runs clean and strong, not much to complain about. Drop to 45 pilot in summer to clean up idle, thats it. |
Bike year & model = 2007 EC250
Temperature (degF) = 45 - 65 degF Elevation (feet) = Sea level to 1000 ft Main jet = 182 Pilot jet = 48 Needle & notch = JD Blue #3 (from JDKH01 kit) Air screw setting = 1.5 turns out Throttle valve/slide = #7 Results: Very much like the LTR -0 needle, perhaps a little crisper response off the bottom. Idles very clean. Drop to 45 pilot and adjust air screw in summer, thats it. Note: This bike is very tolerant to environmental changes and was very easy to dial in. Eaisest bike I ever jetted. Makes great power in both map settings with great milage. |
Bike year & model = 04 DE300
Temperature (degF) = 40-80 degF Elevation (feet) = 900ft Main jet = 178 Pilot jet =42 Needle & notch = 1369D 2nd clip Air screw setting = 1.5 turns out (keep forgetting to play with-tiny bit rich) Throttle valve/slide = #7 Results: Good idle, smooth controllable power, deceptively fast. |
Bike year & model = 2004 DE250
Temperature (degF) = 35 - 50 degF Elevation (feet) = Sea level to 1000 ft Main jet = 178 Pilot jet = 48 Needle & notch = LTR -0 #4 Air screw setting = 2-2.5 turns out Throttle valve/slide = #7 Results: Bike runs clean and smooth in colder weather. As the temperature warms above 50º I will move the clip to #3 and adjust the air screw as needed. Above 70º and I move the clip to #2. |
Bike year & model = '07 EC300
Temperature (degF) = 20c Elevation (feet) = 3500'-6500' Main jet = 165 Pilot jet = 40 Needle & notch = LTR -2 Air screw setting = 2 Throttle valve/slide = #7 Results: I run Amsoil Dominator @ 50:1 ,Iridium NGk plug, no other engine mods. It works great. |
Bike year & model = '08 EC250
Temperature (degF) = 50-65 Elevation (feet) = 0-700' Main jet = 178 Pilot jet = 42 Needle & notch = N1EG #2 Air screw setting = 2 Throttle valve/slide = #7 Results: I run DENICOL S2 @ 50:1 , no other engine mods. It idles nicely and pulls up front wheel in 2nd and 3rd when snapping the throttle. I'm still playing about with the settings just to increase low end response. I got a cck needle just to try it out. __________________ |
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Bike year & model = 2006 EC300 Temperature (degF) = 30 - 40 Elevation (feet) = 0 – 500 Main jet = 185 Pilot jet = 40 Needle & notch = CCK 3 Air screw setting = 0.5 Throttle valve/slide = 7 Results: ------------------------------------------------------------------------- This is my lower elevation winter setting. Throttle response is great and the engine runs very strong from idle (1100 RPM) up to 10000 RPM. |
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Bike year & model = 2006 EC300 Temperature (degF) = 40 - 80 Elevation (feet) = 3000 – 6000 Main jet = 170 Pilot jet = 38 Needle & notch = CCK 3 Air screw setting = 0.5 – 1.5 Throttle valve/slide = 7 Results: ------------------------------------------------------------------------- This is my higher elevation, summer and fall setting. Throttle response is great and the engine runs very strong from idle (1100 RPM) up to 10000 RPM. Fuel mileage is 20+ mpg on technical trails. |
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Bike year & model = 2001 XC300 Temperature (degF) = 30 - 40 Elevation (feet) = 0 – 500 Main jet = 182 Pilot jet = 42 Needle & notch = CCK 3 Air screw setting = 0.5 Throttle valve/slide = 8 Results: ------------------------------------------------------------------------- This is my lower elevation winter setting. Throttle response is great and the engine runs very strong across the range. |
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Bike year & model = 2001 XC300 Temperature (degF) = 40 - 80 Elevation (feet) = 3000 - 6000 Main jet = 172 Pilot jet = 40 Needle & notch = CCK 3 Air screw setting = 1 - 2 Throttle valve/slide = 8 Results: ------------------------------------------------------------------------- This is my higher elevation, summer and fall setting. Throttle response is great and the engine runs very strong throughout the range. Fuel mileage is 20+ mpg on technical trails. |
'07 EC250, temperature around 0 C (-5 - +5), elevation 0 to 100m, 10 kms distance from sea, TTS 50:1, Unleaded super 98, 10ml ethanol additive per tank to help against carb icing, the air intakes of one of the radiator covered with tape, protection for the carb from snow and to guide warm air from the cylinder to carb boot.
Pilot: 45, 1 turn out Needle: N1EF #3 Slide #7 Main : 185 Finally the bike runs Great! Nothing to complain about. Tiny amount of spooge at the end of silencer after 2 hours on the MX track. It rips! if you want more power then your name must be Juha Salminen :)) |
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Bike year & model = 2007 EC 300 Temperature (degF) = 50 Elevation (feet) = 200 Main jet = 178 Pilot jet = 42 Needle & notch = CEK (3 - middle) Air screw setting = 3 turns Throttle valve/slide = 1.5 Results: ------------------------------------------------------------------------- Riding style: slow technical trails -- rarely out of 3rd gear. Premix: Using BelRay H1R mixed about 40:1. Only a tiny bit of "spooge" on the tail pipe after 40 miles. I'd call it "just the right amount". Not enough to be messy, but enough that you know the engine is getting lubed. Smoke: once warm, little to no smoke at all. Performance: very tractable, very smooth. Rider: very happy. |
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Bike year & model = 2006 EC 300 Temperature (degF) = 50 Elevation (feet) = 0 - 1000 Location = Cork, Ireland Main jet = 178 Pilot jet = 42 Needle & notch = N1EF clip 1 Air screw setting = 1.5 turns Throttle valve/slide = No. 7 slide Results: ------------------------------------------------------------------------- Riding style: slow technical trails and fast open paths Premix: Using RockOil Syn 2 race mixed about 45:1. Performance: Excellent once warm |
Bike year & model = '03 EC300
Temperature (degF) = 40-100 Elevation (feet) = 0-3000' Main jet = 168 Pilot jet = 38 Needle & notch = LTR middle notch Air screw setting = 2 Throttle valve/slide = #8 Results: I run BP Racegas, 100 Octane. Premix is 50:1 using Total Grand Prix 2T oil. LTR power valve cover is fitted, Boyssen Carbon Fibre Reeds and Messico Exhaust. Bike pulls clean from bottom with a peakiness at 1/2 throttle and revs to the moon. Peakiness could be due to carbon reeds, will try fibre glass reeds for a more linear power delivery. Starts first kick hot or cold, idles good (after I fitted the #8 slide). Very little smoke or spooge. Kim |
Bike year & model = 2008 Gas Gas DE 300
Temperature (degF) = 45-60 Elevation (feet) = 250'- 5000' Main jet = 178 Pilot jet = 35 Needle & notch = N1EF 2nd position Air screw setting = 1 to 2 turns out depending on temp and elevation Throttle valve/slide = #7 Results: Crisp clean response. I run Chevron Supreme and Golden Spectro at 50:1 and my Irridium BR8EIX Spark Plug burns a beautiful tan just like that perfectly cooked camp fire marshmallow. ;) |
Bike year & model = 2003 EC200
Temperature (degF) = 68 - 100 Elevation (feet) = 1300 – 2500 ( roughly varying ) Main jet = 178 Pilot jet = 48 Needle & notch = N3HJ - 2 Air screw setting = 2 3/4 Throttle valve/slide = 5 Results: I use this setting all year round. I have found that it is very smooth from bottom to top. Air screw was 3 ¼, but wouldn’t idle when warm, now at 2 3/4. I’m considering moving needle to middle notch for better bottom end. Am using Motul 800 mixed at 50:1. |
08 ec 300...had the bog off idle..was cured with a cck needle#3 position,178 main,42 pilot..2 turns out on air screw..runs perfect..thanks
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what elevation are you running at??
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2001 ec-300 with motocross ign and RB style head mod
Temperature (degF) = 40-90 Elevation (feet) = 2200- 5800 Main jet = 165 messico & doma pipe, 170 fmf pipe Pilot jet = 35 Needle & notch = Kawi N3YF #3 notch Air screw setting = .75 turn out Throttle valve/slide = #9 Results. Very crisp throughout the rpm range, pulls hard with instant throttle response and good high rpm power , Caveat , would not ride in sand with this small a main jet, 10 minute road section at W.O.T. with no problems and no overheating |
Bike year & model = 2004 DE250
Temperature (degF) = 50 - 70 degF Elevation (feet) = Sea level to 1000 ft Main jet = 180 Pilot jet = 45 Needle & notch = LTR -0 #3 Air screw setting = 1-1.5 turns out Throttle valve/slide = #7 Results: Much cleaner jetting that my prior post. Bike runs strong and smooth in conjunction w/ .45mm base gasket on my cylinder. |
GG27 revised settings
Bike year & model =EC 250 2008
Temperature (degF) =60 TO 85 Elevation (feet) =0 TO 1000 Main jet =182 Pilot jet =45 Needle & notch =LTR - 0 #3 Air screw setting =1 to 1 1/2 Throttle valve/slide =#8 Results:After changing slide to a #8 I raised the pilot from a 42 to a 45 and bike runs strong throughout with no bogging at all. I changed silencer from the standard banana to the MC and hits stronger with better throttle response from mid to top, signs off a little quicker. Now I can tell the difference with the dual map switch. I prefer the standard long silencer, it gives a broader spread for overall use, MC silencer is good for the motocross track or rain setting for tight woods. |
Bike year & model = EC300 '07
Temperature (degF) = 70 Elevation (feet) = 50 / about 1010mbar / 70% rel. humidity Main jet = 175 Pilot jet = 42 Needle & notch = LTR #3 Air screw setting = 1.5 turns Throttle valve/slide = #7 FMF Gnarly, otherwise stock. Results: Very happy. Idles good, clean & strong through whole range, average about 4 liters/hour at (my slow) race pace, no spooge, black threads on sparky but tan electrode. Peculiar: After starting cold with shortest possible use of choke, I allways need to run it hard through the gears to clear it out. After that it can run at really slow speed for a long while without loading up. |
Bike year & model = 2005 DE250 (11oz FWWeight)
Stock reeds. LTR needle with clip on position 2. LTR PV cover. Stock slide. Winter in Phoenix: Temperature (degF) = 40 - 80 Elevation (feet) = 1100 – 2500 Main jet = 178 Pilot jet = 45 Needle & notch = LTR - 2 Air screw setting = 2 1/2 Throttle valve/slide = stock Summer in Phoenix: Temperature (degF) = 80 - 110 Elevation (feet) = 1100 – 2500 Main jet = 172 Pilot jet = 42 Air screw setting = 1 1/2 Summer in Flagstaff: Temperature (degF) = 75 - 85 Elevation (feet) = 7,000 – 9500 Main jet = 165 (I gave the 168 a try -- almost but not quite lean enough -- a little burble on top. 165 did the trick and was particularly crisp if I dropped the needle to the first clip). Pilot jet = 40 Air screw setting = 2 1/2 |
Bike year & model = 2006 EC 300
Temperature (degF) = 50 Elevation (feet) = 0 - 1000 Location = Cork, Ireland Main jet = 178 Pilot jet = 42 Needle & notch = CCK clip 3 Air screw setting = 1.5 turns Throttle valve/slide = No. 7 slide Results: ------------------------------------------------------------------------- Riding style: slow technical trails and fast open paths Premix: Using RockOil Syn 2 race mixed about 45:1. Performance: I thought this bike was good with the N1EF needle but the CCK has made this bike one I want to keep for life !! Awesome midrange now. |
fergus ....I've got an 06 300 with almost identical set up ....
how is your gas mileage?? Mine sucks. I ride mostly tight technical stuff 1st and 2nd gear. |
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It doesn't really bother me when riding technical trails since we're never more than 5 miles from the truck. From now on, on longer runs, I'll be using my oversize tank. In fact, back in '06, I ran a couple enduros with the oversize tank and didn't even fill up at the gas stop. |
Bill, have Ron at RBD cut the head. My '03 250 was a gas hog and this made a noticable improvement.
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I haven't really run a full tank dry yet ...I did a one gallon test run .. I figured I'd get about 40 to 45 miles out of a tank. Some local guys think I should be able to get 50 to 60. one of these days I'll find out for sure .. hopefull no pushing involved
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I judge my bike's consumption on hours running not miles. Its still not accurate but at least it is a more comparable figure to use than miles covered. Up to now, I have been able to get about 3 hours use from a tank of gas before going on to reserve using the N1EF needle. I will test the CCK needle this weekend to see if it is better or worse with regard to consumption. Fergus |
A few observations on increasing fuel efficiency...
1) Float and Jetting – this is the first step. Make sure the float is set correctly. Dial your jetting in so the plug looks good, the engine runs smoothly across the range with good power and throttle response. The tail pipe should have little oily spooge when you are jetted well. The CCK needle is one of the best in my experience for performance and fuel mileage. 2) RB designs head mod. This will reduce the amount of unburned fuel and improve power (primarily low to mid) by improving combustion efficiency. 3) down hills – the PWK carbs will drain fuel out the overflow when you are descending hills steeper than about 30 degrees. I first noticed this when following my oldest son down hills. I set the motorcycle up suspended at a downhill angle and found when the fork tubes were near vertical the carb would drain lots of fuel out the overflow. This is with the float set to spec. This becomes noticeable on long (1/2 mile to 1 mile) steep descents. Minimize your time on the descents and/or shut off the fuel and down hill mountain bike the ride. 4) riding style – maintaining corner speed with a smooth flowing style notably improves efficiency. 5) [for Rekluse users] proper Rekluse set up with TC balls and a low RPM engage point to avoid a lot of low speed slip On technical trails (like these -http://www.fs.fed.us/gpnf/recreation/trailbikes/trails.shtml ) I get 30+ mpg riding alone. I ride to maximize cornering speed. I weigh about 270 lb geared up. I get about 22-25 mpg on the same trails giving my 6 year old son a ride. With him aboard most of the riding is 1st to 3rd gear with the majority of the time in 2nd gear. He weighs about 95 lb geared up. We corner slower and use more fuel accelerating out of corners. There is more clutch slip on uphills giving him a ride. There is also more fuel used due to the added mass. This fuel mileage includes multiple 3-4 mile long climbs from under 2000 ft elevation to nearly 6000 ft elevation. |
Doesn't help running 10% ethanol pump premium either.
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Did a 5 hour enduro yesterday on my EC300. 178 MJ, CCK needle, clip 2. Bike was just awesome - great linear power stright off the bottom. Conditions were gnarly, slippy and wet with lots of wheelspin and full power climbs. As an educated guess, my bike used approx 10% more fuel with the CCK needle than with the N1EF needle. We had fuel stops every hour and 40 mins so consumption was nota problem. I used approx 14 or 15 litres of fuel over this time frame under race conditons. Still pretty good in my opinion. Fergus |
Can the CCK work on any capacity. Was wondering if it would work well on my 200?
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Here are the popular choices that seemed to come up the most (and JD needles of course). CEK, CEL DCJ, DCK DDJ, DDK Not sure if that helps or not but something to think about. Skidad |
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