kxf 250 dfi wont cold start

My 2011 dfi kxf 250 is hard to cold start,i have tried starting it without choke and it seems easier.

When its warm it starts first kick and runs awesome.

Im thinking it maybe mapping cos it seems to sicken it with choke.i have just bought the bike and has standard exhaust so am thinking its been mapped for an aftermarket type.

Do you think im on the right track??many thanks

It's possible it's mapping but not likely.

I would check the valve clearance make sure it's correct.

Yeah i think i will check clearances as i don't know when they have been checked,forgot to mention tho the bike starts 2nd or 3rd kick with no choke

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