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Enduro Engine - 2 stroke Cylinder, Piston, Tranny, Bearings, Clutch, Pipes & Silencers, etc.


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Old 12-22-2009, 11:59 AM
jetfish jetfish is offline
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Default Oil advice needed

Hi guys,

Just bought a 2002 ec 300 and i am wanting to know what type of oil to use as a premix with the petrol? also what ratio i need to use oil/petrol?

Its the first time i have had a 2 stroke hence the silly questions.

Cheers
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Old 12-22-2009, 02:26 PM
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gasser gasser is offline
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More oil = more power due to better sealing rings. It also means more smoke, more power valve cleanings, and more muffler repacking. On small 2 strokes it makes sense to go for more power but on a 300 I choose to go clean and have less maintenance so I run Amsoil Saber at 64/1 (it's designed for 100/1). Never run an oil at a ratio higher than recommended for that particular oil - lower ratios (more oil) are fine. The guide line I use is no ratio higher than 36/1 for non-synthetic oil, no ratio higher than 43/1 for synthetic blends, and no ratio higher than 50/1 for synthetics unless the maker of the oil recommends it for a higher ratio.
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Old 12-22-2009, 03:36 PM
case-racing case-racing is offline
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i use castrol t2 synthetic oil and mix 500ml too 20L, doesn't smoke much i've never had a piston failure.
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Old 12-22-2009, 05:16 PM
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MattR MattR is offline
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Here you go for the premix ratios:
http://www.gasgasrider.org/forum/showthread.php?t=182

I like to use 40:1 with a good quality 2T premix oil like Amsoil Dominator.
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Old 12-22-2009, 11:41 PM
marjastaja marjastaja is offline
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I run my 250 ec with 40/1 or 2,5% on Mobil 2t oil
We use the same mix on 125 Yz from year 1995
It's a bit too much oil but we ride on a soft sand mx track
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Old 12-23-2009, 04:55 AM
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Debi Debi is offline
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I run 40:1 and use Maxima 927....... been running my 2smokes for years at this ratio
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