Bogging down after 4k rpm

First topic message reminder :

My YZF600 again is playing up.

Previously it would bog down after giving it some revs i could give it full throttle and it will bog down and struggle to reach 50-60 .

The last few days when it done this just gave it the beans and then it would all of a sudden go like the clappers as if somthing was dislodged, but it is now continuously doing it

Any suggestions on what this is my thoughts as a very amateur mechanic is something stuck in the carb and needs cleaned out or the fuel filter needs looked /cleaned or the airbox needs cleaning?

any thoughts?

Idle should be set between 1200 to 1400 at running temperature.

Panthro wrote:

timboellis wrote:just back from a quick run and even at idling / under 3mph it so much smoother as well , where before i had to do a lot of clutch work to keep the speed in check

Great job! thanks for the tip, fingers crossed its as simple as fresh plugs.... surely we cant both be as lucky?..

How did you get on Panthro?

well it tool so long for the plugs to turn up that I got fed up and took my bike to a specialist I discovered down the road.
He gave the carbs a good clean for me and replaced some o rings and the plugs, and now she is flying.

My previous cat was quick, but this one feels ballistic now. Maybe the full Delkevic system and carb balance has helped but it just keeps on winding on the power. Great stuff.