What happens when a semi syn is used the a full syn is used to the excess oil in the crankcase when it mixes?
The negligible amount would 'mix" and well, do it's job. Don't panic mate , this hysterical carry on about two stroke oils gets very tiresome. Look in other current threads a fella is told to set the oil pump half open and then put premix in the tank too!!!!!!
? Fr f**ks sake Why bother mixing in any obviously useless none lubricating petrol!!!!!!! It might interfere with the two stroke lube Gods.
What does your bikes manufacturer recommend? Try that. If your real paranoid, buy genuine Yamaha ,Suzuki, Honda, Ktm etc for your Yamaha, Suzuki, Honda, KTM ect.
The Days of mixing 'half a pint of SAE30 in a gallon of standard petrol" HAVE PASSED. Modern brand name two stroke oils are all far superior then Second World war crap OK. So go out fill up with FRESH fuel and QUALITY oil. Then tune your bike, Why???
seizures are most commonly tuning related but lazily blamed on two stroke oils