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


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  #231  
Old 02-04-2015, 01:32 AM
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Simmo737 Simmo737 is offline
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Quote:
Originally Posted by BSM2 View Post
What does mean "Throttle valve/slide = 7" ??
The slide is what's pulled by the throttle and opens the airway in the carb body, it has a cutaway on the bottom in a crescent shape to allow airflow for idle, I believe the 7 is for 7 mm.

This is a golden explanation of what carby part affects what throttle opening:

http://www.keihincarbs.com/tips/gate.html


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Current. 2015 ec300r estart, 98 RM 125

2013 Ec300r 2011 Ec300e 2009 Husky TE310
1982 XR500 Honda 1981 KE100 Kawasaki
1978 GT80 Yamaha
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  #232  
Old 03-18-2015, 07:23 PM
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Bike year & model = 15 300r estart
Carb=AS1 (screw top)
Temperature = 15-30c
Elevation (feet) = sea level to 1000'
Main jet = 175
Pilot jet = 40
Needle & notch = N3CJ clip#2
Air screw setting = 1 Out
Throttle valve/slide = 7
Float height=18mm
Power Valve=2.2
Motul 800 57:1

I thought the last jetting was great but just needed to adjust the PV, WELL, when adjusting the PV it was obviously too lean, and the 40pj makes this the best gasgas power by a mile I've had, the bike will not stall, is torquey, revs absolutely linear and has a supersonic top end.
In flowing single I switch to the soft map, rocks and slow tech and fast open stuff dry map.
The fuel economy seems to be better as well.
The ignition maps seem to be different. The 13 was snappy off the bottom in dry and soft of the crack with the same top end in wet. The 15 is now soft all the way through in wet mode. Dry mode is now smoother off the bottom but more torque is there and the mid and top end is mind blowing!!
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Oz

Current. 2015 ec300r estart, 98 RM 125

2013 Ec300r 2011 Ec300e 2009 Husky TE310
1982 XR500 Honda 1981 KE100 Kawasaki
1978 GT80 Yamaha
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  #233  
Old 03-19-2015, 08:01 PM
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Further to above, my previous bikes with the old head ran equally well on 98/95/91 fuel. The new motor runs much better on 95 compared to 91 (haven't tried 98). Also the new one runs better on GRO FULL SYNTH or Motul 800 than on maxima 927 where as the old head liked castor. Go figure.
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Current. 2015 ec300r estart, 98 RM 125

2013 Ec300r 2011 Ec300e 2009 Husky TE310
1982 XR500 Honda 1981 KE100 Kawasaki
1978 GT80 Yamaha
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  #234  
Old 03-19-2015, 09:24 PM
benj565 benj565 is offline
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Quote:
Originally Posted by Simmo737 View Post
Bike year & model = 15 300r estart
Carb=AS1 (screw top)
Temperature = 15-30c
Elevation (feet) = sea level to 1000'
Main jet = 175
Pilot jet = 40
Needle & notch = N3CJ clip#2
Air screw setting = 1 Out
Throttle valve/slide = 7
Float height=18mm
Power Valve=2.2
Motul 800 57:1

I'm running the same as your setup (except for a richer main jet, 178) but in a 250 with an AS2. Strange how there's bugger all difference between the 250 and 300 jetting wise, and that the 250s seem to want a bigger main.
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  #235  
Old 03-19-2015, 11:07 PM
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True! Must be the vf4, if I go leaner it's too lean.
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Current. 2015 ec300r estart, 98 RM 125

2013 Ec300r 2011 Ec300e 2009 Husky TE310
1982 XR500 Honda 1981 KE100 Kawasaki
1978 GT80 Yamaha
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  #236  
Old 03-20-2015, 09:40 PM
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Hey benji, is it your fantic? It may have the old barrel and head, they jet a little bit different. Cheers.
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Current. 2015 ec300r estart, 98 RM 125

2013 Ec300r 2011 Ec300e 2009 Husky TE310
1982 XR500 Honda 1981 KE100 Kawasaki
1978 GT80 Yamaha
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  #237  
Old 03-21-2015, 10:09 PM
benj565 benj565 is offline
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Quote:
Originally Posted by Simmo737 View Post
Hey benji, is it your fantic? It may have the old barrel and head, they jet a little bit different. Cheers.
Yeah, its a 2013, but from what ive figured out, its the same as a 2011 six days, etc. motor. 38mm AS2. from what ive heard, the AS1 and AS2 jet abit differently, and the 250s require a little bit more fuel.

great motor, just seems a bit finicky jetting wise compared to what ive had previously (yz250, ktm 250sx, kx250, cr250)
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  #238  
Old 04-30-2015, 06:47 PM
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Upyourkiltbatman Upyourkiltbatman is offline
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2011 xc 300
Sea level
Uk temperature
Pilot 40
Main 180
Ne3g needle
2 clip down
Bike runs great, crisp off the bottom and fairly smooth , just wondering why no one else has this set up , little bit of Rev on after a full blast section and no spooge , hope this is ok
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  #239  
Old 04-30-2015, 11:32 PM
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N3EG popular needle in OZ. i found it too fat and like N3CJ and now the NECW.
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  #240  
Old 06-09-2015, 10:32 PM
CampX CampX is offline
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2005 EC300
175 main, 40 pilot
2500-5000 ft ASL
NEDW #3 clip
Stock pipe and silencer (custom bent, lol!)

Temperatures are crankin hot in southern BC right now, and my bike was running a lot rich this weekend. (30 degrees C up at 6500 feet!)
I had ordered a NEDW awhile back, but was too busy/lazy to put it in. The needle that came with the bike has no markings, brass coloured. Threw in the NEDW last night, and bam, cleaned it up nicely. Still a little hesitation down low, but seems to pull harder, and longer, than the original. Some bush riding will tell the tale better.
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