Jetting Database - PLEASE ADD YOUR SETTINGS

[Simmo737]

Originally Posted by n_green

That settles it. I'm getting a new one

I feel very responsible

[wa_ndro]

Have you had the squish done Simmo?

I am getting the same results from 2013 300.
175 MJ, 40 pilot, AS 2 screws out. N3CJ - 3rd clip. stinger silencer. Head machined by TSP.

Could prob go to 38 on the pilot, and am getting 120km to the tank easily.

[Jakobi]

My 2013 250 is pretty good on the fuel as well. Spooging with 40 N3CW#3 175 but haven't run out/hit reserve. Seems to do as well or better than my 2010 running similar jetting. Both heads setup by Dave! The newer cylinder definitely makes more power down low, but then again, the ports have been dropped, and on my 2010 I'm running a race ported cyl which has them raised, and this last rebuild I raised them a touch more for more top end. She goes.

[Simmo737]

Originally Posted by wa_ndro

Have you had the squish done Simmo?

I am getting the same results from 2013 300.
175 MJ, 40 pilot, AS 2 screws out. N3CJ - 3rd clip. stinger silencer. Head machined by TSP.

Could prob go to 38 on the pilot, and am getting 120km to the tank easily.

Nope, but I was using a 42 and 178 with the yam needle though so that would account for the head work, I'm not sure what effect the shorty would have, I'd suspect more flow so richer settings so your leaner again, interesting.

[n_green]

Bike year & model = 2011 EC300E fitted with oval bored 36mm x 39mm PWK ASII carb and reed block spacer and fitted with modified head
(squish - 1.45mm, compression ratio - 12.7:1)
Temperature (degC) = 18 - 25 degC,
70% - 80% humidity
Elevation (feet) = 1000f, or 300m.
Main jet = 172
Pilot jet = 40
Needle & notch = NEDJ #2
Air screw setting = 2 turns out
Throttle valve/slide = 6.5 notched

Results:
Good torquey power lugs down quite well, it is still rich on the bottom as indicated by the air screw. It was loading up ever so slightly just off idle but cleared its throat quite well once on the taper and had great wheel lofting ability. I was a bit rich on the main but it still had good over rev and the humidity was high so don't know if I'll go down a step or not.
The fuel economy was ok just under 8l for 70k's. Nearly all of it single track at a decent 2nd/3rd gear pace.

http://youtu.be/kLdmTXuvMSo

[Simmo737]

Bike year & model = 2013 EC300R fitted with 38mm PWK ASII carb (with the new cylinder)
50 percent humidity
Elevation (feet) = 1000f, or 300m.
Main jet = 172 (previous 175)
Pilot jet = 40 (previous 38)
Needle & notch = NECJ3
Air screw setting = 2.5 turns out (previous 1.5)
Throttle valve/slide = 7

Results: Not as super crisp off idle as the 38pj but that's the only difference apart from running cooler, a 39 pj if they are around would be perfect, but this is good enough for me, head work would probably clean up the tiny blubber. It's a bit more torquey as well which you would expect. Less spooge I reckon from the smaller main than I started with, and it revs out to a mad top end now. Coming into winter in australia would have forced me back to a 40 anyways. Still starts so easy but I'm thinking going to motul transoil expert in the gearbox has also helped with that, starts in gear easy as now. This motor is a gem.

[Dschubba]

Bike year & model = 2013 EC300
Temperature (degF) =60
Elevation (feet) =sea level to 3000
Main jet = 180
Pilot jet =35
Needle & notch =N1EF 2nd from top
Air screw setting =2.5 out
Throttle valve/slide =7

Results:Runs nicely. My track quite tight, so mostly slow running and on the default settings (42/180 clip in middle) i'd foul a plug before i'd used a tank of gas.
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[n_green]

Bike year & model = 2014 EC300R E-start
Carb: 38mm PWK ASII carb and reed block spacer
Engine: Stock
Temperature (degC) = 18 - 25 degC,
35% - 50% humidity
Elevation (feet) = 1100f, or 350m.
Main jet = 178
Pilot jet = 42
Leak jet = 85
Needle & notch = N3CW #3
Air screw setting = 1.5 turns out
Throttle valve/slide = 7 non-notched

Results:

Great torquey power, can lug around a gear high without a problem, rolls on smoothly into a very strong mid and top end. Wheelie machine in 2nd and 3rd just rolling on and will easily bounce up in 4th.
I usually don't like the N3xx needles due to the explosive transition onto the pipe, but this setup is smooth as butter and very very predictable.
The ride was 90% twin trail/firetrail with lots of power sapping sand, some deep some not so deep. The bike had no trouble pulling onto the pipe and didn't feel lean at all.

Nitpicking - it was rich just off idle and at 1/8 throttle causing an annoying burble and some 4 stroking at low throttle openings. The idle is a bit lower then I'd like.
As today was pretty much all large throttle openings I reckon the burbling may get annoying in single when I'm using that low rev range a lot. We'll see.

Fuel economy was great - 7.5l used for 92ks = 8.2l per 100k's.

[MNKeith]

Bike year & model = 08 EC250 38mm PWK
Temperature (degF) = 65-85 F
Elevation (feet) = 0-1000ft
Main jet = 178
Pilot jet = 42
Needle & notch = CEK on 3rd notch
Air screw setting = 1 turn
Throttle valve/slide = 7

Results: So far so good, no complaints.

[n_green]

Bike year & model = 2014 EC300R E-start

Carb: 38mm PWK ASII carb and reed block spacer

Engine: Stock

Temperature (degC) = 10 - 25 degC,

70% - 90% humidity

Elevation (feet) = 1100f, or 350m.

Main jet = 172

Pilot jet = 42

Leak jet = 85

Needle & notch = NEDW #2

Air screw setting = 1.5 turns out

Throttle valve/slide = 7 non-notched



Results:



Great idle with awesome torquey power, can lug around a gear high without a problem, rolls on smoothly into a very strong mid and top end. Wheelie machine in 2nd 3rd and 4th rolling on and will easily bounce up in 5th.


I covered 240k's in 2 days with this jetting, 50% twin trail, 50% single trail. Some of the biggest longest hills I have ever seen, they never seemed to end and they were slippery so I was forced to labour the motor in 3rd gear to get traction up them. When we were on a flat section it got treated like a race track and the engine was screaming like a banshee. The motor got worked hard this weekend

This jetting is bloody brilliant, it is so torquey off the bottom, then comes alive with a nice linear hit of power all the way to the end. There is still the slightest hint of a burble at 1/8 throttle but it seems to go away under load. By the end of the second day my filter must have been getting pretty dirty as the idle dropped low and the bike started stalling on slow downhill descents and the burble got worse. The fact I could notice that tells me this jetting is pretty darn close.

Fuel economy was good - 240k's - 19l used = 8l per 100k's.

Quick check of the porcelain on the spark plug and its a lovely caramel colour.