www.zxrworld.co.uk

Hi
How many turns out for pilot screw for L model ?
I see 2:1/4 for H model in the microfish but for L model I find in the some data 1:3/4.
Is that corect ?
Bike is standard (air ,exhaust,jets)
What you think for K&N air filter on the standard bike?

mine are 2:1/4, and thats an L model

bato wrote: What you think for K&N air filter on the standard bike?

pointless unless your OE one is shagged, and even then get one second hand one off ebay, or a fresh OE one.

Hows working bike between 3000 and 4000 rpm?

bato wrote:Hows working bike between 3000 and 4000 rpm?

eh ?

zimm wrote:

bato wrote: What you think for K&N air filter on the standard bike?

pointless unless your OE one is shagged, and even then get one second hand one off ebay, or a fresh OE one.

surely a K&N if it doesn't make any performance changes would surely be more economical as you can clean and reuse them?

masterofinsanity wrote:

zimm wrote:

bato wrote: What you think for K&N air filter on the standard bike?

pointless unless your OE one is shagged, and even then get one second hand one off ebay, or a fresh OE one.

surely a K&N if it doesn't make any performance changes would surely be more economical as you can clean and reuse them?

that does seem to be the only benefit on a mildly tuned engine. but they do cost the best part of £40 new.

thanks for posts I am folow yours advice for air filter.
But carbs is my night mare.
I change needles complet,needle valves with orings carbs are balanced.
but something is wrong.
When bike stop some time I must starting engine with lot of trotle.
When bike working and swich off and after that starting start is ok without trotle.
I didnot see fuel licking in the carbs.

I am sory about bad english

see here http://zxrworld.co.uk/zxr400oc/viewtopic.php?f=7&t=3391

ok I am looking that post but my bike have starting problem when not working some time hot or warm dasnt meter.

could it be fuel pump? or ignition, sometimes i can turn the ignition on and hit the starter and the bike doesn;t fire, i turn the ignition off and back on and it fires straight away.

could just be the fuel in the float bowls evaporating so sometimes it needs cranking for long enough for them to refill as the pump only works when the engine is spinning over ..

you live in a warm country by any chance ?

cos that'd do it.

EDIT: does it spin over REAL quick on the starter ? if so, its valve clearances.

for now is 38 C temp
I think bike loosing fuel from carbs but how?
I cant see that licking in the carbs.In the night is not too much hot.
Problem comes when bike staying some time .

bato wrote:for now is 38 C temp
I think bike loosing fuel from carbs but how?
I cant see that licking in the carbs.In the night is not too much hot.
Problem comes when bike staying some time .

there's your problem.. its just too warm for it. Mine was the same in the Alps in the summer months, and its only about 33 C there !

its not leaking, its evaporating.