GT250 WHICH OIL TO USE

[Nodohc?]

Hi , new member here
Just bought my first 2stroke for 30 odd Years , a GT 250 78/79
Needs a few bits , been standing a while was wondering what type of oil to use ?
More types now than I remember ,

[Alan H]

In what? Forks? Gearbox? 2T oil?

[Nodohc?]

Sorry should have been more specific ,
2t and gearbox
I use 2 stroke tools at work and have used synthetic and old style mineral
Oils
When the bike was built synthetic wasn't around so is modern synthetic ok ?
I know not to mix types and will drain the tank and flush the pump cos I don't know what's in it as it's been standing a while .
Am I overthinking it ?

[Alan H]

I use semi synthetic 2T oil in all my 550s - less smoke & cost not too bad - you can turn the pump down a bit too if you don't spank the bike too hard.
Ordinary mineral oil (I use Duckhams 20w50) in the gearboxes & forks as recommended by Eddie Crooks & Frank Whiteway in 1972 when they made my first 'standard' GT550J into a production replica (that they raced at the time.)