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Enduro Intake/Carburetion - 2 stroke Jetting, Reeds, Air Filters, etc. |
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Thread Tools | Display Modes |
#341
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Riding sand at the moment.
Temp was 12-15degs. MJ: 172 PJ: 42 Needle: NEDW clip #2 Having changed from 175mj to a 172mj made a massive difference, bike feels like it's got nitrous now in the top half of throttle. Also runs nice and clean. I have bought a Beta 200rr that will become the bush bike now so I can devote this Gasgas to wide open sand etc. |
#342
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Hello from France,
GasGas EC 250 converted to 300 - 2012 Main jet: 172 Pilot jet: 38 Needle: NECH Clip position: 1 from top airscrew: 1.75 turns out from seated Throttle valve/slide = #7 Gas: 98 octane gas Mix: 1.5% 100% synth?se oil Altitude: 300 to 1100 meters Modified original cylinder head, squish 1.3 to 1.7mm close to the center of the piston. RV is now 14,3:1 (13,2:1 stock) Stock exhaust |
#343
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Moved out to Arizona, took a while to get a good jetting setup here.
Bike: 1999 EC200. Original PWK 38 AS-I carb. Altitude: 2000-3000 feet (Phoenix area - New River, Wildcat, Mile Markers, etc.) Temperature: 50-90 F. Generally low humidity, even on cooler days. Main: 172 Pilot: 42 Needle: R1470M, 4th clip Slide: #7 air screw: 1.5 turns out Bike pulls clean and crisp off the bottom, though it's a little lean on overrun. I might try a 45 pilot and a little more air screw to clean things up on colder days. I'm running, pretty consistently, 1 step leaner settings out here than I was at sea level on the east coast. And that goes for every bike in my stable, not just the GG. The dry air and the elevation seem to make a difference. |
#344
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Bike year & model = 2013 EC300
Temperature (degF) = UK! Elevation (feet) = sealevel - 1000ft Main jet = 175 Pilot jet = 42 Needle & notch = N3CJ 04 CLIP 2 Air screw setting = 1.5 TURNS Throttle valve/slide = Results: Clean all the way through - approx 9 miles per litre of fuel |
#345
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Quote:
I was thinking the same setting for Sea level in UK. Is the setting good for WOT on mx tracks or stick with 175 main with NECH? |
#346
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GasGas EC 200 - 2012 Six Days
PWK38 ASII (2 bolt cap) Main jet: 168 Pilot jet: 35 Needle: N4DW Clip position: top clip (leanest) Slider: #7 airscrew: 1 turns out from seated Mix: 50:1 Motul Altitude: Sea level @ 20-25 C stock exhaust 9mm float height Crisp, easy to start, idles strong, Good 1/8 to 1/2 throttle usage (slow technical riding) Plug a nice brown with minimal to no spoog |
#347
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2011 EC 250e
Keihin 36mm (36 cast on cap) 168 Main 38 Pilot CGJ needle 2nd position with shim( didn?t notice that the first time I pulled it) Slide stamped 65 AS 1-1/8 Idle 7-3/4 600-2500 feet riding Hot and humid southern riding in summer Cool and damp in the winter
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Brad 2011 Ec250 1982 Land Rover Santana Ligero Last edited by Wbdisco; 03-21-2024 at 06:47 PM. |
#348
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2011 EC250 Six Day
PWK38 ASII (2 bolt cap)
Main jet: 175 Pilot jet: 40 Needle: JD Jetting Red Clip position: 4 (almost richest) Slide: #7 airscrew: 2 turns out from seated but doesn't really matter Mix: 50:1 Klotz TC2 Altitude: <1000ft FMF 7mm float height I have had this bike for abut 5 years and it has always run well. Crisp and strong with very little spooge. It has the typical idle where it seems normal but then almost dies after about 15 sec. I have always used a 50/50 mix of 110 Turbo Blue and Shell 93 but started using straight pump gas last year and the jet block gasket failed and now its hard to get it back to where it was even with a new jet block gasket. Posting here before I try different slides and needles and will update if I improve things. |
#349
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24 6days 300
50-90f 800' elev Stock exhaust and 38mm carb 40 pj As 1.25 NEDW#2 170 mj. May tweak later as bike is really new
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2022 Aprilia Tuono 1100 Factory 2023 BMW R1250RS 2024 Reiju 300 6 days |
#350
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I'm surprised you ended up with the 170 main jet with the NEDW. If power is a little weak at larger throttle openings, try the 172.
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