KR-1S.co.uk Forum

i hav a collection of zxr400/250 usd bits, inc full set of forks yokes etc sat in my garage think 400 forks hav a little damage, but i hav the 250 yokes which r like rockin horse pooh!!
the 250 forks outer tubes are good but a lot longer than the 400...was going to mix/match but wont fit !!

got a reply back from maxton about my forks...

"The forks look externally very similar to the 750, but internally there are quite a lot of difference - it is a much cheaper fork inside. One of the big problems with the ZXR400 forks is that the oil is metered at the top of the fork. We modify the forks so that the oil is metered at the bottom of the fork, this gives the fork a much smoother action. We also increase the rebound damping and reduce the compression damping, this helps the bike turn into corners and hold a better line exiting corners. We also fit harder springs to suit your rider weight to stop the forks diving under braking. "

The cost of the conversion is £250 plus VAT and carriage. Seals would be £20 plus Vat and bushes if needed would be £20 plus VAT.

Matt

I would def go with the maxton conversion that Corky just mentioned but before you do it, just get the bike built with some ZXR forks and a decent rear shock and give it a good thrash . The fork rebuild can be do at a later date as cash allows.

35mm carbs

going to see if i can fit remote idle adjusters and choke pullers..

just need vforce or boysen reeds, enlarged airbox ( 1litre per 15hp!!) and throttle cables....

getting there...

corky, what slides are in your carbs? is one a no.5 the other no.6? i have these in mine at the mo but in the process of sorting mine out. you need the no.6 slide as per kr1r fitted.

is a #5 but the other one has nothing on it how can i tell?
and where will i get the #6 slide?

the standard choke cable will fit without any problems. Its the throttle cable that needs modifrying to give a longer pull to open the cables fully.

corky wrote:is a #5 but the other one has nothing on it how can i tell?
and where will i get the #6 slide?

Allens Preformance for the slides

corky wrote:is a #5 but the other one has nothing on it how can i tell?
and where will i get the #6 slide?

the slide should have a number on top, note the shape/angle of the cut out on the slide. im not sure but it appears you have a 5 and a 6? allens are the main agents as elf said, how much are slides anyway?

crash bungs at last.....
used 12mm 8.8 threaded bar replacing the top engine bolt, and spacers to take the bungs past the genny and oil pump covers..

hope you never have to test them

Corky

Those crash bungs look ace. When will you have the beast finished? I'm looking forward to seeing the finished bike.

if i can get the time off, got oulton on the 8th, but defo booked for anglesey at end march, will try and do as many as poss b4 i go to afghan

will try and get on one of the days that the forum lads are on prob cadwell or donnington

I'm booked on at Cadwell with Hottrax in April, if you fancy coming along?

will speak to the lads see if they fancy a bit of camping

what date is it? can only do weekends at the moment

corky wrote:will speak to the lads see if they fancy a bit of camping

what date is it? can only do weekends at the moment

Its on a monday the 14th IIRC. Would love to see your bike in the flesh.