XT500.org - Das Forum -

hello guys,
i intend to buy a XT500 (1980 model) in downunder and was wondering about the petrol quality for the engine. would one have to use additives with unleaded fuel? please advise.
your replies are greatly appreciated.
regards
jimmy

Hi, there are no additives needed for the XT500. Leadfree fuel should be good enough for her, else there`s something wrong .
Regards, Fabi

hi Jimmy,
me for myself always use unlead fuel in my xt`s

the subjekt unlead or additives is sooooooooooooo long.

i would say if you dont intend to start at sixdays with you hard modified XT500 ( 50 or more ps)
just lay back und enjoy you unlead burning XT, as long as you get it

regards

thank you, guys.

To be honest I've just purchased my '81 XT after 21 years owning different Yamaha XJ 650 & 900. I still can recall my dealer's answer when I asked him in the 80's which fuel I shall use. You can use for every Yamaha from 1980 on unleaded regular fuel, but the XT 500 requires leaded premium fuel.
So 1st thing I did was to buy lead additive - call me crazy. But the story XTom has written about Marcs XT on the anniversary Dakar that just by using lead additive has reduced the oil consumption from 0.5L / 100 km to a normal consumption, convinced me that it might not be necessary, but it gives me at least a good feeling.

regards,
Bert

But the story XTom has written about Marcs XT on the anniversary Dakar that just by using lead additive has reduced the oil consumption from 0.5L / 100 km to a normal consumption,

Japan itself prohibited leaded fuel back in 1980! So anything about needing lead additive seems to be nonsense!

Greetings, F.