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yamaha autolube - can I use synthetic and weaken the mix?

jim*jimbo
in The Bar

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Posted

Hi Guys, I've got a 31 year old TY175 which runs on mineral two stroke oil on the standard autolube system - the book says its about a 30:1 mix ratio.

Does anyone know if I can swap over to fully synthetic oil on a leaner mix without harming the engine? I believe the oil/petrol ratio is adjusted by re shimming the pump?

Cheers,

Jim.

p.s. will update my profile this weekend.

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    Thanks Guys

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