Nick Frost Posted April 16, 2006 Share Posted April 16, 2006 I'm sure it's been covered before, sorry. Can anyone tell me, definitively, whether my 1978 XS250P (frame cide 1U5) is OK for unleaded, or should I be using an additive? Link to comment Share on other sites More sharing options...
Moderator YamaHead Posted April 16, 2006 Moderator Share Posted April 16, 2006 Should be OK to use Unleaded Nick I believe they have hardened valve seats that are condusive to that type of fuel. Link to comment Share on other sites More sharing options...
Moderator drewpy Posted April 17, 2006 Moderator Share Posted April 17, 2006 I'm sure it's been covered before, sorry. Can anyone tell me, definitively, whether my 1978 XS250P (frame cide 1U5) is OK for unleaded, or should I be using an additive? yep mine runs fine on unleaded Link to comment Share on other sites More sharing options...
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