05 WR450F difficult to start

When cold its almost imposible to start using the electric start and after warming up sometimes starts easy by electric sometimes hard using the kickstarter

inconstant idiling as well.

i know when its cold i shoud use only the kick but after after 20 mintes of riding the machine shoud be able to start by pushing the button

the battery is new and the carb settings are made after the manual

i have an open FMF pipe


checked valve clearances?

Check the valves. Tight intakes can lead to this. Moving your post to the correct forum.

Check your valves. Maniac

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