www.zxrworld.co.uk

Well I finally got it sorted! There seems to be quite a few people who have had the problem of revs not dropping off and here is how I got it sorted...... Firstly welded up all the holes in the downpipes. Then cleaned the carbs thoughout. I got four new inlet rubbers from cradley kawasaki for £30 delivered, theese were fitted and it was obvious how worn the old ones were compared to the newun's. The rubbers were I think what made the bigest difference. Carbs back on and balenced, then a fiddle with the mixture (now 2.5 turns out) and it is going better then I have ever had it!

pleased to hear that shakey!

As you say, alot of people here seem to have this problem. Out of interest how much were the rubbers?

They Were £30 Delivered for all 4, Which I think is good value as Some carb parts are nearly £100 each which is expensive when you need 4!. Plus cradley had them in stock and delivered them next day.

nice one

so it was essentially an intake leak causing the "hanging" then ?

good ol' cradley. good news mate.
out of interest, how many turns out where the pilot screws beforehand?

they were out 4 turns but this was a set of carbs I got off ebay. I paid £15 for them and they are in great condition.

RedexRobB wrote:pleased to hear that shakey!

As you say, alot of people here seem to have this problem. Out of interest how much were the rubbers?

says in his first post mate

so it does!

did the old rubers have holes in them? how were they worn? Like you said seems to be quite common fault

rene wrote:did the old rubers have holes in them? how were they worn? Like you said seems to be quite common fault

It would certainly explain why I've found it's happened on all my older bikes...

rene wrote:did the old rubers have holes in them? how were they worn? Like you said seems to be quite common fault

Yes all four had holes in the middle to let the fuel and air in Sorry couldn't resist that. No they were not split but the rubber was more supple on the old ones, the new rubber was much stiffer. In answer to how they were worn if you look at the bottom of the rubber that sits into the head there is a quite ponounced rubber ridge on the new ones, this obviously gives a much better seal, the old ones we practically worn flush.

hi guys, what do you mean by revs hanging.

basically when you let go of the throttle it should return to idle speed, but sometimes things can cause them to stick around 2k revs

yh ok sound for that, my revs are ok then, i thought it was the amount of time it took for the revs to return to idle.

well they've just cost me £11.13 plus vat each. Now i make that about £52. Now i mentioned the website and everything, so whats going on there? Big difference between £30 and £50.

Mine were for an L3 if maybe that made a difference, but i thought all UK bikes had 32mm carbs, so all the rubbers should be the same.

Grrrrr