General stupid carbs

[dave]

6 months ago my 750 running very rich when it went for mot (passed though). i tried adjusting carb but couldnt get it right must be blocked jet, i didnt want to have it off road to long so got another carb or ff member, i just got around to fitting it but bugger wont set up, i using colour scope thing but cant get yellow flame only blue. ticking over fine but as soon as i rev it it cut out, it set it now at 2 turn out on mixture screw flame nice bunsen blue and it didnt cut out when reving, but then i die. i sent her out for more petrol hoping it that but still cant work out why i couldnt get a yellow flame

 

[Most Easterly Pandas]

I think the 769cc Carb and 999cc Carb are different are they not? Could this cause a prob at all

 

[dave]

its off a 750 iirc. was a bit different with throttle and choke linkage but choke one wasn't a problem an i swapped the throttle

 

[Most Easterly Pandas]

its off a 750 iirc. was a bit different with throttle and choke linkage but choke one wasn't a problem an i swapped the throttle

Fair enough, silly me, lol.

Yes I know what you mean about the different throttle and chock linkages Tis a bloody pain at the best of times

 

[urchin]

check your vac unit on the dizzy if thats split you wont be able to set the mixture up as it will be pulling too much air in and will run weak. i have had this alot on fire engined fiats when they come in for service. if you need a vac unit Dave let me know and ill bring you one to mitcar (if i can find one)

 

[dave]

ah ha i checked that when old carb was playing up an it was ok. checked it again just now, it ok but the pipe to it had split have cut pipe down to get rid of the split, am warming car up now see how it goes in a sec if it dont rain

 

[dave]

it rained i soaked


its better, still cant see yellow but running better dont die when i rev it. think i take it up the local garage and use the thing up exhaust instead

 

[dave]

i needed it to go out as punto fecking broke so cleaned old carb put that on an popped out, it still running crap, and had pre igintion very bad when i got back ( why it called that when it happens after ) i look inside dizzy cap and contacts are very worn so think i best go get new one and rotor arm.
there isnt any points on this is there?

 

[Most Easterly Pandas]

Yes the 750L's have points!

Are you on about 'Run on' ?

 

[dave]

yeah. where are my points then? do i have to take half the dizzy apart?

 

[Most Easterly Pandas]

yeah. where are my points then? do i have to take half the dizzy apart?

Yea, I think so. They behind the Dizzy I think. I've never done them, always got a local mobile mechanic to do them, and he's always taken the dizzy off to get the them.

 

[Most Easterly Pandas]

 

[dave]

aww crap i not ordered points, i rang up an cap an arm are on the shelf, i bet points wont be

 

[dave]

View attachment 48231

thats a different dizzy to mine i got black cap one

 

[Most Easterly Pandas]

thats a different dizzy to mine i got black cap one

I think that's just the colours of the plastic isn't it

And there are about 4 different types of Panda points so might have problems getting the right one. I know we have in the past :bang:

 

[mightysisley]

white cap marelli dizzy, black cap ducellieur dizzy iirc dont hold me to it though:chin:

Remove dizzy cap, rotor arm then a plastic disc. The points live behind the disc.

 

[dave]

behind my plastic disc is solid alloy

 

[petel]

Dave.
Your distributor has a black plastic cap.

Does it also have a black plastic unit screwed to the side of the distributor with a cable and plug from the wiring loom connected to it?
Rgds.

 

[dave]

no its got condenser with green wires on out side

 

[petel]

Then the points are under the alloy plate that you can see when the cap is removed.
Rgds.