Engine cut out w/ throttle on????

[A6franz]

Need some suggestions...Have a '06 RMZ 450 that runs awesome. Recent valve check in spec and fresh oil. Starts on first kick cold/hot. Went riding today and had the engine completely die 2 times under slight acceleration on gradual hill climb. No bogging prior to stall - just felt like someone pulled the plug. Kicked right over w/ hot start and I pressed on - happened 1 more time. Any thoughts? Buddy says he's had it on his Honda CRF 450. It was a muddy ride but the stalls did not happen going through water. Anyone????

[CrusRuss]

Happened all the time to me on my 06 CRF and 06 RMZ until I installed the Boyesen Quickshot!

[Erik47]

maybe you were out of gas or it was off haha ive had that happen when i run out of gas:bonk:

[cjvZ450]

check the float. mine has stuck twice, first open gas just runing out, then went trial riding and it stuck closed and cut out while thottle was wide open

[gtxkid]

Pull the check valve out of the gas tank vent tube.

Greg

[holeshot]

I've had this happen on my '06 CRF 450. Then at other times, it will go hours on end and never stall or hiccup. I've tried blaming a few things (including vent check valve), but couldn't figure it out. Maybe jetting?