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Hi guys, when I fuel up my XS 250 will I  need to use an additive i.e. lead replacement etc.

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No. Japan has never had leaded fuel.

You should use super or ultimate petrol though. Not for the higher octane although your bike will run better. No because at the moment it is ethanol free. 

A lot of your seals and the brass in your carbs can be badly damaged by ethanol. As well as running much leaner, not so critical on a 4stroke. Ethanol also holds water. Not good either. Will rot your tank out in no time.

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Yep like Cynic said, l was using redex lead replacement for years till I joined YOC Only to find I didn't need it, been running fine without now for about 5 years.

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i do use the super unleaded in the vain hope it doesn't have ethanol in it

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Will the ethanol also impact on two-strokes?

Should super unleaded be used instead of regular on two-strokes?

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42 minutes ago, UK_DT said:

Will the ethanol also impact on two-strokes?

Should super unleaded be used instead of regular on two-strokes?

yes, as they still use carbs. it attacks brass and rubber

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On 2017-5-22 at 2:10 PM, drewpy said:

yes, as they still use carbs. it attacks brass and rubber

Thanks, that's useful to know.

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Does super unleaded prevent the fuel from turning to Gel when left for a long period?

I hear this can be a problem for bikes with carbs stood say over the winter, caused by unleaded petrol.

Cheers

 

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Its not as bad. My carb varnished up in 2 mths with unleaded. Not had a problem since with super

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