johnh Posted September 21, 2008 Report Share Posted September 21, 2008 What fuel/oil mix ratio should I be using in Montesa 123 (1980)? Cheers John Quote Link to comment Share on other sites More sharing options...
motovintage Posted September 24, 2008 Report Share Posted September 24, 2008 What fuel/oil mix ratio should I be using in Montesa 123 (1980)?Cheers John this subject is been over discussed, and there are many different views and answers to you question, most modern trials riders use a mixture of 60:1 to 80:1 with a high quality 100% synthetic oil of various different brands, I am using a synthetic ester blend at 38:1 in my modern bike, in my vintage bikes I use the same oil at 32:1 Quote Link to comment Share on other sites More sharing options...
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