the dreaded day is looming HELP?

[oli_the_thread]

I have my 76a carbs sat in the garage, next to a bag full of O-rings and am hoping to replace them this weekend, is there any sort of picture heavy guide to follow? or shall I just take them to bits one at a time and replace as I go?

How has everyone tackled this? with help or just jumped in and got on with it?

[panda]

Hi i just jumped in and went for it would say have a nice clean work area lay everything out in order clean out everything with carb or brake and clutch cleaner remember where it all goes or take photos .and dont stop till there all back together .Sure you will be fine the tony sleep guide is good.

[donk]

yea the tony sleep guide is good i replaced float bowl gaskets to and all the screws to the bowls check the diaphrams had to replace the screws to the covers aswell when i did mine the shagged heads on all the screws nearly gave me a breakdown i hope you have better luck !

[Variablevalves suck]

Do one carb at a time and work on a clean surface (old news paper) lube the o'rings with fuel as they pinch if dry.
The pilot screws are in the order of o'ring , small washer, spring and then pilot screw last.
If you get stuck PM me and i will help all i can.

[stripes1976]

word of warning do not over tighten or force the jet o-rings in.
most carb issues i have to sort for people are bent tubes or pinch o-rings.
also when re-fitting the jet carrier do not over tighten as the emulsion tube can spin and damage it.

[oli_the_thread]

Right then, I started with this job today full of confidence and enthusiasm and that very quickly turned to confusion and the urge to give up! I set myself up with a nice table and chair in the garden put a white rag over the top and sat myself down

removed the first cap as photo shows and got to work firstly changing this one with a 5.5mm o-ring

and then this one with a 7.5mm o-ring


never forgetting to use petrol as a lubricant though!


This is where I got stuck though.. I cant seem to find anymore o-rings to replace? where are they hiding?
if someone could either tell me or point out on one of the following pics I would be very grateful!




I took this out and was just wondering if it should have an o-ring in or not? I get the feeling it should, but I could be very wrong


HELPPP

[morris147]

O- Rings on the end of the mixture screws and remove the carb top and you will see the o ring.

[oli_the_thread]

which are the micture screws? where are they located? I removed all the screws I could see and none of them had o-rings on!

[morris147]

Mixture screws:





Undo the 2 top bolts, and the oring is marked in the pic.

[oli_the_thread]

many thanks!
I think someone must have fucked around with these before because this

has no o-ring on!!