Newbie needs help

[Bigl1978]

Probley been asked many many time
My 2000 busa stutters when holding throttle crusing ect
Full throttle seems fine
Tick over not happy
When she first starts its fine for 5 mins then plays up
I've change plugs to the twin tip ngk wondered if its that
Cleaned tank
New fuel pipes
Cleaned pump
Put new injector seals and little filters in

I did all this as it was spluttering a lot like it was on 3 1/2 cylinders
Then it went down to 3
Dud compression test all was good one plug was duff
All coil packs seem fine
Can work it out
Smells very rich on tick over
Any help

I would have searched fourm but I'm on an I phone with very bad Internet conection and this has taken ages a to do


Cheers in advance ppl

 

[dadofthree]

to the oRg Make sure you have the right plugs first off. You didn't list air filter and these bikes run a little rich.

 

[newman]

Sorry I can't help, but welcome to the org.

 

[MLSDUKE1]

to the org, do you have a Power Commander?

 

[Mr Droo]

What's your idle speed set at? Mine did the sputtering thing for awhile and one thing that helped was raising the idle speed to 1100. Before that, it was idling near 950. ...check your air filter/air box as well.

 

[Bigl1978]

Hi air filter is a KandN and its all clean
Rasing idle didn't help
I went to local bike parts place to get the same plugs that was in it cr9e but there were some cr9k I think same length thread but had twin tips so got a set of them

Maybe that's were I went wrong

 

[Bigl1978]

No power commander
I'm trying to remember if this has happened since input a pair of quill end cans on