i need help

[lloydie]

i finally managed to get the donkey out today
pulled choke out a little and it had improved the juddering vanished but as soon as i put choke back in it started again....
so could be a mixture issue???

What size pilot jets have you got fitted ? 45 bad 48 good

[Wicky]

You previously mentioned you have a K&N airfilter and Remus cans - has it been rejetted for these changes as the K&N will flow more air and require more fuel - usually done on a dyno with a dynajet kit. Net result will be significantly higher fuel consumption and possibly if not tuned correctly a hard to eradicate dip at the lower end.

You might want to put a standard air filter in to see if things improve - do some plug chops or book it in to a workshop with a dyno for sorting out.

[gabi81]

Don't know jets size but I booked a dyno run for nxt yr
but bike was running fine before i fitted nipple for balancing so....might try to adjust mixture and see if any change is made and going to try the standard filter to see if more improvement is made

[leevtr]

Don't know jets size but I booked a dyno run for nxt yr
but bike was running fine before i fitted nipple for balancing so....might try to adjust mixture and see if any change is made and going to try the standard filter to see if more improvement is made

If it was fine before you touched it I strongly suggest you undo your work and put it back as it was before, then see if its ok. If so you know its definately that and you can eliminate things like mixture, costly dyno runs etc.

And deffo try an original air filter, the K&N's cause more problems than theyre worth.

[VTRDark]

If it was fine before you touched it I strongly suggest you undo your work and put it back as it was before, then see if its ok. If so you know its definately that and you can eliminate things like mixture, costly dyno runs etc.

+1 and if that don't solve your problem then it's time to open the carbs and have a play. Carbs are fun and these carbs are a pleasure to work on.

(:-})

[leevtr]

If it was fine before you touched it I strongly suggest you undo your work and put it back as it was before, then see if its ok. If so you know its definately that and you can eliminate things like mixture, costly dyno runs etc.

+1 and if that don't solve your problem then it's time to open the carbs and have a play. Carbs are fun and these carbs are a pleasure to work on.

(:-})

But if they aint broke, dont fix em !!

[Mav617]

BTW Gabi, still holding on to that original bellypan if you want it......

[gabi81]

BTW Gabi, still holding on to that original bellypan if you want it......

thank for that but for now my main focus is getting the bike to run properly
reverted all changes ive made back and the problem is still there
could anybody come and help me?
willing to pay for the effort and knowledge offered
so please please i like it too much
if all this fails il sell it and go back to a fireblade.....

[gabi81]

FINALLLYYYY i got my bike running perfect now....
after all efforts and advice received from you guys ive managed to sort it out
so many thanks to all

[Watty]

FINALLLYYYY i got my bike running perfect now....
after all efforts and advice received from you guys ive managed to sort it out
so many thanks to all

So what was it in the end Gabi?

[VTRDark]

Good news...you managed to get the mixture about right then. What's the rev needle like when blipping the throttle at stand still. Nice and smooth with no fluctuations hopefully. Just in time for nice weather as well.

(:-})

[gabi81]

One of the mixture screws was seized and carbs wanted a clean
Needle sits still at idle and to be honest when riding it it feels totally different now much more responsive
my next bit is to sort suspension

[Mav617]

BTW Gabi, still holding on to that original bellypan if you want it......