littlegadgi Posted January 30, 2015 Report Share Posted January 30, 2015 hi just after correct 2 stroke petrol mix for 2006 beta ,thanks martin Quote Link to comment Share on other sites More sharing options...
jonboy_09 Posted January 30, 2015 Report Share Posted January 30, 2015 15ml per litre of petrol. Quote Link to comment Share on other sites More sharing options...
littlegadgi Posted January 30, 2015 Author Report Share Posted January 30, 2015 thanks been putting in 20/1 in explains smoke i guess Quote Link to comment Share on other sites More sharing options...
wakka Posted January 30, 2015 Report Share Posted January 30, 2015 More smoke less poke 1 Quote Link to comment Share on other sites More sharing options...
dan williams Posted January 30, 2015 Report Share Posted January 30, 2015 No mosquitoes though. Quote Link to comment Share on other sites More sharing options...
the addict Posted January 31, 2015 Report Share Posted January 31, 2015 I always used 70ml to 5 litres of super unleaded with Castrol TTS oil, and when I could get it, 50/50 with Avgas. Quote Link to comment Share on other sites More sharing options...
littlegadgi Posted January 31, 2015 Author Report Share Posted January 31, 2015 I always used 70ml to 5 litres of super unleaded with Castrol TTS oil, and when I could get it, 50/50 with Avgas. will give it a try never thought to use super unleaded, Quote Link to comment Share on other sites More sharing options...
burns1989 Posted February 2, 2015 Report Share Posted February 2, 2015 70/1 is the mixture ratio so 70 mls oil to 5 litters petrol Quote Link to comment Share on other sites More sharing options...
goudrons Posted February 2, 2015 Report Share Posted February 2, 2015 (edited) According to the handbook, It's 1.5% of Synthetic oil Or and 4% Mineral oil. (who still buys the stuff?) Contrary to popular belief, adding a "drop or two extra" doesn't help. You are reducing the fuel to air ratio as some of the petrol is being replaced by the extra oil in the mix, therefore leaning out the fuel to air mixture. They also like the higher octane fuels 98-99 Ron. (Super unleaded). It's thought they suffer a bit of pinging on less octane fuel, certainly my old 2001 and 2007 did! Edited February 2, 2015 by goudrons Quote Link to comment Share on other sites More sharing options...
itstommmm Posted February 21, 2015 Report Share Posted February 21, 2015 what According to the handbook, It's 1.5% of Synthetic oil Or and 4% Mineral oil. (who still buys the stuff?) Contrary to popular belief, adding a "drop or two extra" doesn't help. You are reducing the fuel to air ratio as some of the petrol is being replaced by the extra oil in the mix, therefore leaning out the fuel to air mixture. They also like the higher octane fuels 98-99 Ron. (Super unleaded). It's thought they suffer a bit of pinging on less octane fuel, certainly my old 2001 and 2007 did! what ratio is 1.5% Quote Link to comment Share on other sites More sharing options...
slicktop Posted February 22, 2015 Report Share Posted February 22, 2015 what what ratio is 1.5% 80:1 Quote Link to comment Share on other sites More sharing options...
goudrons Posted February 23, 2015 Report Share Posted February 23, 2015 % is Percentage. A number or ratio expressed as a fraction of 100. It's dimensionless, so can be applied to any units you care to use. For every 100 parts of petrol (in whatever unit that maybe), add 1.5 parts (of the same unit) of oil. So 15ml per litre. or 1.92 US fluid ounces to one US gallon. or 2.4 UK fluid ounces to one UK gallon It isn't odd Beta use this expression, as Per Centum (Per Cento, Per Hundred) is Latin and started in Ancient Rome. Beta are Italian and as such use metric measurement systems which are similarly based in 100 multiples. Quote Link to comment Share on other sites More sharing options...
ken_hosking Posted February 26, 2015 Report Share Posted February 26, 2015 80:1 1.5%, ie 15 ml/litre equates to a fuel to oil ratio of 67%. In company with other Beta riders in our local group, I use an 80:1 mix, that is, 1.25%, in my 300 Factory. The bike seems to run more cleanly on this ratio than on the recommended 1.5%. Using a 98 octane fuel for this model seems to be mandatory unless you enjoy hearing detonation from the engine. Riders of Gas Gas and Sherco bikes often mix their oil and fuel at 1.0% (100:1) with no apparent detrimental effects. I suspect that the Beta recommendation of 1.5% is highly conservative for off-road trials use, but for extended on-road usage it might be prudent to increase the oil/fuel ratio to the manufacturer's recommendations. 1 Quote Link to comment Share on other sites More sharing options...
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