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Enduro Electrical & Wiring Lighting, Ignition, Wiring, Plugs, etc. |
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#1
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07 timing?
Hey Guys,
Just rode a six hour day / night ride and I am still having the bike ping at wot and bog down going from 1/4 throttle to wot, unless I feed it gradually. Talking to a mate, he says that it sounds like a timing problem. I had a previous thread about timing but didn't ask what the actual timing before Tdc should be. Does anyone know what this is ? The bike is an 07 Ec300 and I assume it is an Australian version as I am in Oz(not sure if they are different). I am running castrol tts oil at 32:1 with 98 octane unleaded. My jetting is 180 main,42 pilot ,1.5 turns on idle screw, N1eg plug, 2nd clip from top. Any ideas or help would be great as I am scared to ride this normally for fear of seizure etc. Thanks in advance , Mark. |
#2
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I doubt its a timing problem.Spec is 1mm btdc I run at 1.5 for a little cleaner off idle perf. Why are you running such a rich gas-oil mix? Thats going to create a leaner a/f ratio and as a added bonus lots more carbon buildup with potencial glowing hotspots, that combined with high coolent temp's, perfect environment for pre ign.
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#3
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Thanks widebear, I will change the timing first as the mtor was rebult b4I purchased and the timing may be wrong.I think I wil adjust it to what you have.
I am going to change the a/f ratio to 40:1 and will also check and changejetting to rid the bogging. I'll ave a go at this on the weekend (I hope), and let you know how I go. Cheers Mark. |
#4
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Quote:
GG recommend 50:1. Go with it. GG would hardly recommend a 50:1 ratio if the engine was going to be borderline lubricated would they ? I have run 50:1 in my GGs for years and never had a problem. Use the best fully synthetic 2 stroke oil you can get and you will be fine. 32:1 is way too oily and too lean fuel wise. |
#5
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Will do , I'll let you know the outcome.
I think the onlyt half decent oil we have is motul, can anyone suggest another good oil? Cheers Mark |
#6
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Motul is fine. Try this one
http://www.motul.com.au/product_line...2stroke02.html All the best Fergus |
#7
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Cheers mate, will purchase later in the week once I am paid. Just as a matter of interest what do you guys pay for the above?
Thanks again, Mark |
#8
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I use Rock Oil Syn 2 race and I sell it for €14.50 euros for a litre of it.
Not sure if you can it in Australia. |
#9
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Mark,
As you live in Adelaide give Show & Go a visit they are the experts on Keihin carbies,they sell shudco needles, review all the post on carby jettings within this forum I would suggest a CCK or CEK needle. They would also sell many good Fully synthetic oils- Belray, Motul, silkolene, motorex: 40:1 is a good safe ratio Noel
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Noel 07 Gas Gas 250ec Newcastle, Australia |
#10
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Thanks guys and thanks Noel, I will give them a call tomorrow.
Cheers Mark |
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