2010 YZ450F won't idle after head gasket replacement

Just did a head and base gasket on my 450f. The bike ran great before tear down, just would puke coolant after a hard run. Now when I start it, it will not idle at all. It sounds pretty rough as i give it a little gas. I turned the idle up and saw no changes. Any ideas?  

used same valve shims as before and clearance was within spec

Clean the injector

Clean the injector

no change

no change

Timing correct?

Did it the way it says in the manual. We cant think of anything else it can be, going to tear it back down and redo the timing and valve shims

There are two sensor connectors that will fit but not "click" in. I believe the ait (airbox) and the map (right side frame) sensor connectors.

Might be worth checking, ive made the same mistake with the same results. Their not color coded...

Any fault codes?

There are two sensor connectors that will fit but not "click" in. I believe the ait (airbox) and the map (right side frame) sensor connectors.

Might be worth checking, ive made the same mistake with the same results. Their not color coded...

Any fault codes?

its a black 2 pin in the airbox, the other 2 i see are 3 pin and blue. i will swap the 2 blues and see, thank you!

 

that was the issue, hell yeah!

Edited by MiranAdam16

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