#21
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Quote:
i replace reeds every couple of years whether they are good or not. they will fail eventually, and it's something you cannot repair on the trail. the good thing about your whole dilemma is you will know more about your bike then you did when you started once you get it all sorted out you won't need to play with it anymore (unless you're like me and constantly tinkering/searching for the 'perfect' state of tune...)
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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 |
#22
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its a breeze to start. kick maybe 3 times if its been sitting and a little cold. choke or no choke. primed or not. and its not a major blurble at the low end, just a little sluggish, like the air screw is out of tune, even though i try to tune it most times i ride. oh well, i may as well check it anyways. im gunna take the carb off to check float height, so theyre going to be right there anyhow.
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03 ec250 hyde skidplate, cycra handguads, protaper contours "what? it seemed like a good idea at the time!" |
#23
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Cool!
When I eventually find some time to strip down the engine I shall put the 36mm on. By the way I assume you know the CCK needle is a DDK shifted by half a clip position - in case you need some fine adjustment. I need check over the motor as it was sounding a bit odd during the Welsh. So odd I pulled out at the end of day 1. |
#24
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This has got me thinking . How do you tell if the primary crank seal is leaking?
I'm a hypocondriact (SP) when it comes to bikes. |
#25
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This is incorrect. The first letter defines the taper structure or series, in this case your comparing a C series with a D series, the C taper being leaner. The DDK and DEK are in fact a half clip equivalent different, which is why I mentioned them both. If your interested, get a copy of James Dean's Excel spread sheet that allows complete jetting spec comparisons across the throrttle range including altitude and temp corrections. Its very useful and informative. I change reeds when I do a top end, and always find some minor fraying damage. Yeah if you have a big crack or missing part then the bike will be a bear to start, but smaller leaks can raise hell with the low end. I found a very strange condition on my '03 where the fiberglass resin on the Boyesen RAD valve reeds was being broken down by something in the fuel, the reeds were actually sticky to the touch. Not saying this is your problem but it is all relatively easy to check and will eliminate any unknowns. biggstr6, If your primary crank seal is leaking you will suck trans oil in and the bike will smoke like you have a 10:1 mix in the tank. Ever see a bike like this? Looks like one of those trucks some towns use in summer that fog for mosquitos. |
#26
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jd's spreadsheet is great for experimenting on the bench - you can plug in minor changes and it charts lean rich compared to what you have. right ow i have a minor lean spot at 3/4 throttle. gotta plug in some numbers and see where i can get it a tad richer there... on another note, i got a colortune from someone for my birthday - not something i would ever buy, but since it was free i'm gonna give it a try on a 4t and see how it works. should be neato.
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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 |
#27
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Where is this spreadsheet you speak of...... I want one
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Fred Overstreet 2010 EC250 SixDays 2004 GasGas EC300 -Sold to a good home 2006 GasGas EC250-Sold to a good home 2006 GasGas TXT 280 Pro |
#28
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google
JD_Jetting_2002.xls
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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 |
#29
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But looking at a needle chart the length difference DDK -> DEK is 1.5 clips? Is that correct? |
#30
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No, its .5 clip positions or about .45 mm between the two needles in the same position. if you get the spreadsheet you can verify this by comparing the two needles.
That spreadsheet is good, I jetted a GG125 from scratch with a different needle and the simulation was as close as it gets when I actually rode the bike. A large selection of needles are possible, except his, which are propriatary. If you can get the bike running pretty good with a DDK, the JD Blue will work even better. Does that colortune work on a 2-stroke? We put a wideband AFR sensor/controller with a narrowband emulator in my brother's Buell XB9. It also has a small AFR gauge on the bars and can log complete ECU run time data to a laptop in a backpack. Very cool, really got the map dialed in close with that setup. |
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