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I picked up a new-to-me bike last night. 2006 CR250 with 11 hours on the frame rebuild.
Its got stock internals, bore, stroke, carb, everything is said to be rebuilt with OEM parts.
It also has a FMF fatty works pipe with shorty silencer
He mentioned that he was only able to get it to run correctly with straight VP C12 40:1. He said when he tried to mix 50/50 pump gas "it sounded like a coke can rattling in the cylinder"
Isn't there something I can do to make this run better on either straight pump or 50/50 mix? I don't have any C12 and I'm wanting to go riding this weekend, also I would be wanting to run VP T2 over C12 if I were to buy race fuel.
I'm clueless when it comes to jetting a 2 stroke. I had a YZ250 last year and it ended up running perfect with the mixture I went with so I never had to adjust.
Any help here?
Thanks in advance!
Jonah