hmmmm try running some premix on your next fill up. it's best to always fill up and not to put in here and there. i run 2 stroke engine oil everytime i fill up. and being as you have an NA you dont need anything higher than 87 octane unless youre looking for flames out a straight piped exhaust .


add 1/2 quart of 2 cycle fuel injection oil to every fill up. if you were running a turbo model you would want to disconnect the stock OMP. BUT the series 4 has a mechanical oil pump and you dont have to worry about it.


so run 87 octane, 1/2quart 2 cycle FI oil to your fill up, and see how it does.




adding premix not only lubricates rotor housings, but it also prevents uneven wear and will keep away carbon build up. FYI it doesnt clog FI