carb help please

[neat street]

Hi Guys
I am having problems with No1 carb. it seems like its not letting fuel through. normally to test this you can undo the balance screw and squirt some WD40 or similar into the hole and if the engine picks up, you know fuel is not getting through. but when I undo the screw, the engine revs up and exhaust gets hot without the added WD40 (normally it would slow a little before squirting the WD). in some ways this is good news, but where should I look for the fault/blockage-airway? any ideas/solutions would be welcome.
Thanks in advance

John

[Johnwebley]

check its not getting to much fuel,

 by removing the screw you let just air in,as it runs better,and the pipe heats,it seems over rich,

what colour is the plug?
any petrol puddles on the floor?

 remove the 4 over flow pipes from the float bowl,see if any drip,

[neat street]

Hi John
Thanks for your reply, tried the fuel bowls/overflow, all is OK. The problem when checking the plug is that it only fires when the vacuum test screw is off, so will give me a false reading on the plug? No petrol issues. I am not sure if by undoing the vacuum screw it creates a vortex and forces more fuel through? have checked the jets and all is clear there. not sure where to look next?

John

[neat street]

Hi all, just a thought, my rubber connector boots are probably the originals and quite hard. when I cleaned and checked the carbs, could this one not be sealing properly and creating these symptoms? if so, can anyone recommend good quality replacements please?
Thanks in advance
John

[hairygit]

Genuine ones seem to still be available, not cheap, but Honda quality, and don't use jubilee clips to secure them, use the proper bands.

[neat street]

Hi all, just an up-date, all working fine now, the guy who cleaned and balanced my carbs had not put the leaver into No one choke properly, so running rich! thank to John and Hairy git for your help, have also put on new rubbers as well while at it.
Thank again
John

[Green1]

Did you go to the garage in Braintree in the end?

[neat street]

No, their is a specialist in Tiptree for Honda. retired guy used to work for Parky`s in Colchester. does know his stuff, but not cheep!

[Green1]

Interesting I live in Tiptree were abouts is he?
I used to spend far to much time in Ron Parkinsons in Marks Tey.Then they moved to Colchester and focused purely on Ducati.Not sure but think they have now gone and are called Moto or something now.

Mick

[neat street]

Hi Mick
funnily enough, his name is Mick as well (trades under total traction and works from his house). if you PM me I will send you his tel No.

John