FZX250 Zeal Speed issue

Hi guys has anyone else out there with a Zeal had an issue of not being able to get much above 100km/hr?
Mine happily smashes 50kms in 1st, 90kms in 2nd but once in 3rd or higher the thing just doesn't want to get above 100kms let alone struggles to get there. Have pulled carbys apart and checked for blockages and the seals seem ok as well as adjusting the floats as to the correct float levels. Have just installed pod filter instead of stock air box but was having issue before these were installed.

Any help or advice would be awesome.

 

Problems been around since I got it, the guy I brought it off said it struggled to get above 100, runs better with pods, stock filter was filthy and too expensive to replace for me, jets had been fiddled with (prior to me owning it) instead off all small in start up and all big in running it was half half, 2 were correct and the other 2 were running small for main and big for start up. have since swapped them back to where they should be. As far as I can tell they are the correct factory size. All the jets were clear.

 

Cheers for giving that advice I atleast have somewhere to start from now, I'll tinker around with it and once I establish the issue I'll repost the solution.

 

So unsure what changed, havnt done anything to bike and all of a sudden it'll let me get up 120 now couldn't risk going any higher :/

 

Not sure will have to have a look, but yeah revs it's head off easily in 1st and 2nd and was having same issues prior to pods, currently in the shop getting the cam chain replaced as had a nasty rattle in it so will find out if that may have been the problem when i get it back.

 

Hi guys, have pulled the carbies down again and checked the sizings they appear to be correct.

Was talking to my old man and he thinks it could be the sprocket sizing now have gone and checked mine and they are F1-13 and R1-44 but from a sprocket website they've got diffferent numbers plus another zeal as well any help would be greatly appreciated.

so currently i'm running what the 520 Con is running what ever that model is, could my issues be caused by not running what the F1-17 and R1-57 or should I just go one size up on one or another? The big just seems to have no top end what so ever, attached tacho the other day and 1st gear to 40km/h it's hitting 8.000rpm then slot up to second gear and go up to 60km/h it's at 10,000rpm :/

I honestly have no idea when it comes to things like this. Also running the 520-120 chain obviously to go with said sprockets.

 

Everything as far as i know is stock minus the pods but issue was around prior to the pods. not so much stutter Just refuses to gain anymore, went to over take someone the other day doing 80 in a 100 zone and it was a long mission to get around them, my mate on his 2012 CBR250 overtook me while I overtook the 4x4 and caravan :/ I hit 100/110 and then is just runs out of puff in 4th, if i decent gust of wind comes alon git pretty well stunts my speed and any decent hill climbing limits me to 100 also regardless of 3rd or 4th gear.

 

Well a bit less then that my red zone starts at 14k and tacho finishes at 16k

 

As in zaust? It breathes fine no blockages from what ive found.

 

Without my tacho permanently mounted I don't 100% know what rev range it's running flat but most likely would be in that range.

Is it possible it could be a needle issue? I've checked to make sure jets are fine and correct (after discovering someone had done all sorts of weird **** to them) if the needles are in the incorrect spot could this cause this issue?