Carbs - Running on 3 cylinders

[wookey]

Hi

i've just replaced my carbs with a new set, as the old ones were siezed (mixture control)

i tore down the new ones, cleaned the jets, passages ways etc etc. and checked over seals diaphrsms etc.

Now put on bike, i noticed that cyl 2 (2nd one from the right if u r sitting on the bike) is not firing, all the others are great.

thers compression, a spark and fuel in the bowls.

any other ideas? im stuck. other than rip them apart again.

thanks
wookey

[wookey]

probaly sticky slider or broken diaphram..

oh thanks wookey..

no problem wookey.. not very busy is it
no. shame.

;D

[CD]

Hmm We do our best

Blow out all of the jets on the faulty carb and check the float level is correct. Also confirm the plug cap is ok.

[bobh]

Quick question - is cyl 2 not working all the way through the rev/throttle position range or is it just at tickover? Also does it fire when the choke's on? If it does seem to work once you put a fair bit of throttle on and/or if the choke is used, it's almost certainly the pilot jet. These are very small and can easily clog up with jellyfied petrol after a few weeks of non-use, and are a b*** er to clean out completely. I finally managed to get mine clear by squirting carb cleaner through and blowing with air.

[wookey]

yeah i rebuilt them, cleaned all jets, removed mixute jets and reset. plenty of fuel in the bowls so can only assume dirty sliders now.

wasnt a dig. everyones busy. should have left ot longer b 4 posting really, but when u spend hours in the cold u get frustrated. still post will be here for the next person who searchs lol

[wookey]

hey sat here with humble pie right now ! cleaned the sliders all done still not working i guess next is to take thm off and chech the pilot jets next. there is plent of fuel. the plugs are wet, good spark too

[bobh]

Not sure if you can get at the pilot jets on the D6 by just taking off the float chamber bowl - don'r have my Haynes for that model any more. But if you can it shouldn't be too difficult, you just need a sharp screwdriver to make sure you don't mess up the slot (I'm sure you know this, but others may also want to get info from this thread).

Good luck - Bob