Usually 25:1. But with synthetic oil, I am currently up to 30:1 and looking to drop a bit further.
Quick question on 1960s Benelli 2 strokes.
What is the recomended ratio using a modern quality synthetic premix oil?
What is the recomended ratio using a modern castor based (Maxima 927) oil?
I'm currently running a modern synthetic at 32:1 (only because that's the mx used in my string trimmer, and its easier to fuel from the same can!)
I think the "OLD" manuals called for mixing gas with 30wt motor oil at 20:1 (am I correct?)
Any other recomendations on what premix oil to use? and why? and at what ratio?
I have just seized my Benelli 125 enduro running it at 32 to 1, its mashed the piston and barrell
Yikes! 32:1 must be not enough oil then. 25:1 or 20:1?
i was using silkolene oil mixed in a can and measured the oil in a kitchen measuring jug. The piston seized in a big way will stick to 25 to 1 in future its cheaper than a new barrell and piston!
Running my 1980 125 twin at 40:1 on Rockoil seems to like it certainly smokes healthily .... right or wrong?