KR-1S.co.uk Forum

fecking carbs have nearly done my head in [i must be an expert , taking the tank on and off] right then, here goes. i know my float hights are spot on and valves are closing. both carbs are adjusted correctly, and air screws are one and a half turns out, i am a bit unsure about the pilot jets, although they seem ok, both the same blowing through them[new ones are coming tomorrow] sol i will play with the carbs tomorrow when they arrive,[may need to turn the air screws in a bit, [even though 1 and a half turns out is standard] , i have also sprayed carb cleaner all around, so no air leaks. after 5000rpm[great] but low down is a pig, if i open the choke slightly,it seems better,[so maybe running lean? ] i have adjusted the choke cable only slightly[so i know the choke plungers are resting at the bottom, so my question is. do i need to tighten up the choke more,?are the plungers supposed to sit in the carbs higher

Hmmmm, mine is the same.
On the open road giving it some it is fine, but round town I have to give it a tiny bit of choke or it just bogs down and dies.
I thought it might be the old plugs oiling up but new ones have made no difference.
Any ideas?

Mike

probably a long shot... but on mine...

If you take the float bowl off, turn the carbs upside down, there are two torx head screws (with dimples in em)...

I took these out and found that the seals inside were buggered...

I can only assume that these may be affecting the tick over...

Not 100 % sure... but worth a look...

failing that, I read somewhere that the reed valves go on the corners and this can have an affect???

Good luck

Nate

thats how mine is. a tiny bit of choke and all is ok. am i adjusting the choke wrong, as i have hardly tightened the cable and the plungers must be pressing down in to the carbs, those seals inside the carbs might be worth a look, hopefully mr bungoleo or mj will be along to answer this and put me right

if you need choke when its warm your pilots r not adjusted correctly or your pilot jets r blocked...you should screw the choke barrels in fully(14mm)and it should give you a mm or two slack at the choke arm at the bars...bit different for you martin as you have the 300cc conversion so your settings wont be the same as standard....you just need to break the circuits of the carb down..the pilots do tick over and the first 1/4 throttle....needles affect 1/4 to 3/4...and main jet the final 3/4 to full.......but with a little overlap....if its just idle to the first touch of throttle it can only b pilot circuit.....hope it helps...

sorted it. pilot jets buggered, put new ones in, cant belive all this f cking about becaues of two pilot jets, so carbs sorted, [and now the clutch gasket decides to start leaking,] never mind, i will get it all sorted for this summer

don't forget...ace cafe Kawasaki day soon....better start polishing...
n glad you sorted it in the end....

cheers mate. should be on track to get the kr1 mot d in the next two weeks, hope to see some kr members at the ace

Glad to hear you sorted it Martin, where did you get your brand new pilot jets from?
Sounds like I need some too.
Mike.

allens performance mate, put size 40 in, cant believe the difference it made

standards for kr1 is 38's....kr1s 40's but i remember rc46 running 45's without too much hastle...

i decided to try a 40. and it seems to pick up quicker