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Enduro Intake/Carburetion - 2 stroke Jetting, Reeds, Air Filters, etc. |
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#1
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yet another no idle thread.
2001 ec300
#7 slide 45 pilot a/s somewhere between 2 and 2.5 turns out. 175 main ddk needle on #2 float is adjusted properly bike runs great pulls hard and relatively smooth. carb is clean but: sounds like it's 4 stroking at 1/8 throttle. bike will not idle. zips up and down through the rev range pretty clean, but dies instantly when i shut the throttle idle screw has no effect. air screw has little to no effect. i can't get it to idle to adjust airscrew. i hold throttle at 1/16 or so, and i turn airscrew till 4 stroking is minimized. bike used to idle when it was about 30 degrees cooler.... it would at least idle for 20 seconds or so, then die off. now it just dies instantly. since it's warmer, i've tried 42 pilot and moving needle up and down (it runs slightly better with needle at position 1...but still no idle.) and 172 main. still no idle (and bike wasn't as strong all around...). i don't want to go bigger on the pilot (48), because i think it will 4 stroke more most likely? so i assume have 2 choices: different needle different slide. - now i've tried a leaner slide in the past on my 200, but i didn't like the effect. plus needles are cheaper so, any suggestions as to needles that may solve my dilemma? i'vew plugged lotsa things into jd jetting chart, and it seems ddl might be the solution. slightly leaner to 1/4 throttle..
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07 ec300 was 00 xc200 now a 00 xc300. now parting out. 99 ec300 (now a pile of parts which are for sale) Stainless Cycle - Motorcycle Bolt Kits www.stainlesscycle.com Last edited by stainlesscycle; 05-23-2011 at 04:40 PM. |
#2
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Slide for sure, then tune the needle.
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#3
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Quote:
my 01 300 is 42p, 7 slide, 172 main (i think.. sorry... dont remember for sure) cck needle on #2 position.. 2 ish turns out also... depending on the day.. we are about 3500', but our "corrected air" depending on the day can be over 5000.. mine idles fine.. |
#4
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last time i tried a leaner slide (on a 200 - went from #5 to #7) - i ended up losing all the grunt. it revved out, and idled pretty well, but had no balls down low. so i'm a little tentative... maybe i didn't go rich enough on the needle... should i just go to #8 slide?? i hate buying slides that end up being useless....
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07 ec300 was 00 xc200 now a 00 xc300. now parting out. 99 ec300 (now a pile of parts which are for sale) Stainless Cycle - Motorcycle Bolt Kits www.stainlesscycle.com |
#5
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Quote:
to duplicate you i would need to go 45/175/#3 i've tried that - no idle. the only way to get it to idle is adjusting it at the throttle. i can adjust/hear the slide hitting the plastic idle screw, so i know it's lifting it......i've turned it all the way out and slowly turned it in hoping to hear it start climbing, but it never does..even bottomed all the way out...
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07 ec300 was 00 xc200 now a 00 xc300. now parting out. 99 ec300 (now a pile of parts which are for sale) Stainless Cycle - Motorcycle Bolt Kits www.stainlesscycle.com |
#6
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Quote:
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#7
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i forgot to mention - 200+ psi compression - .15 base gasket. pings on anything but minimum 50/50 110/93... timing is retarded 1 degree.
__________________
07 ec300 was 00 xc200 now a 00 xc300. now parting out. 99 ec300 (now a pile of parts which are for sale) Stainless Cycle - Motorcycle Bolt Kits www.stainlesscycle.com |
#8
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airfilter is dirty - gonna change that out and see if it helps. i've gotta check the reeds too....
__________________
07 ec300 was 00 xc200 now a 00 xc300. now parting out. 99 ec300 (now a pile of parts which are for sale) Stainless Cycle - Motorcycle Bolt Kits www.stainlesscycle.com |
#9
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+1 on checking the reeds.
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#10
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sounds like a warn out slide orifice to me.
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