FZR 400 rr was this project a mistake ?

[chris6409]

I bought a fzr 400rr 3tj the other week as a working project (good bargain) and I've had nothing but a nightmare. when i pull away from a stop it splutters then picks up and is fine but oh when it warms up ahhhhh i have to rev it around 8000rpm (embarrassing) other wise it stumbles around 2-3000rpm and when i let off the throttle it dies

Heres a list of the things ive tryed with no improvement

Changed : plugs, cleaned and oiled KnN air filter, oil filter, oil( castrol magnatec 10w/40 p synth), fuel filter

Cleaned carbs
Balanced carbs

I think ive got a leak on the downpipe

And i still have to rev it above 8000 rpm to take off otherwise it hesitates at around 2-3000 rpm and if i ease off the throttle it dies
Its evident when i first start riding ( when cold) but when it heats up OMG i feel like walking

Can somebody please help please im close to insanity !!!!

[chris6409]

When i turn the ignition i dont hear the exup servo move could this be the problem ???

[levo]

Where abouts in the country are you?

[chris6409]

Sorry my bad i can hear the the servo im in l,pool levo

[Evilchicken0]

Did you check the exup is working properly ?

[chris6409]

Yeh when i turn the key i hear a faint robotic noise lol

[CRM]

Chris that may be the fuel pump priming.
It's a shame i know so little about the FZR or would offer to help being local and all. My skills are honed on the Honda V4's though

[jim157]

Yeh when i turn the key i hear a faint robotic noise lol

The exup servo should make a sound like this (24 seconds in):-

[Wraith]

From what you are describing, it sounds like the EXUP is stuck.

[Evilchicken0]

You're listening for the weep weep noise not the ticking of the fuel pump.
See the chrome cover in the video ? take that off and you'll see a pulley, turn on the ignition and it should move backwards and then return forwards.