Help with setting up a 28 Pict carb **new problem**

djnee Officially Full-On Dubber

341 posts · joined Mar 2009 · 16 Nov 2010, 7:00 pm

#812971

Hi all!

I've just swapped out my carbie as my old one was leaking fuel...
Just whacked the new one on (when i say new, its used!) and whilst i've wound things in and out and managed to get it started, if i put my foot on the accelerator it dies.
Any ideas?

I've not adjusted a carb before, but i learn fast and have tackled other stuff on my car....so i thought it's about time i learned how to set a carb up!

Now i know theres a screw on the left hand side (to adjust the air / fuel mix?) Is this the only thing to adjust, or not?
Yes...i know i need a manual!! I actually have the pdf of the idiots guide, but i must be even more idiotic than the idiot as i find it really hard to follow compared to Haynes manual...and the lack of decent pictures in there is a bind too 🙁

So if anyone can help it would be much appreciated 🙂

Thanks

Neil

It May Never End

ian.mezz I never said, I could write or spell

3,913 posts · joined Sep 2004 · 16 Nov 2010, 7:20 pm

#812972

😂🤪😂🤪😂
car forums. where a lot of peoples good intentions end up taking a good old car off the road forever never ever to see the road again. 🥲

djnee Officially Full-On Dubber

341 posts · joined Mar 2009 · 16 Nov 2010, 7:59 pm

#812983

Thanks for that Ian...exactly what i was looking for regarding what screws do what job 👍

I've got it idling semi-ok, but the engine dies when i push the accelerator down.
Does this indicate too much fuel / not enough fuel?

I'll investigate more tomorrow, but if anyone's had the same thing - idling but dies when you put your foot down, then it might save me an hour or 3!

Thanks again

It May Never End

ian.mezz I never said, I could write or spell

3,913 posts · joined Sep 2004 · 16 Nov 2010, 8:10 pm

#812988

djnee wrote:Thanks for that Ian...exactly what i was looking for regarding what screws do what job 👍

I've got it idling semi-ok, but the engine dies when i push the accelerator down.
Does this indicate too much fuel / not enough fuel?

I'll investigate more tomorrow, but if anyone's had the same thing - idling but dies when you put your foot down, then it might save me an hour or 3!

Thanks again

not enough fuel
with motor NOT running
take air cleaner off
move throttle and look into carby and fuel should squit down the middle.

😂🤪😂🤪😂
car forums. where a lot of peoples good intentions end up taking a good old car off the road forever never ever to see the road again. 🥲

djnee Officially Full-On Dubber

341 posts · joined Mar 2009 · 16 Nov 2010, 8:34 pm

#812999

Ahhhh....
Deffo not squirting....which i guess indicates a blockage? (or something else?)
I had the top off the reservoir earlier (which had fuel in it btw) and spotted a small hole at the bottom, but couldn't figure how to go about unblocking it if it needed it. Any tips?

It May Never End

grumble Son of Jim - Creator of Good

2,672 posts · joined Jun 2008 · 16 Nov 2010, 8:49 pm

#813005

Under the discharge nozzle there is a ball bearing,this is probably stuck,remove the discharge nozzle and free the ball.

djnee Officially Full-On Dubber

341 posts · joined Mar 2009 · 18 Nov 2010, 6:55 pm

#813244

Thanks for that...seems that the ball bearing was stuck 🙂

OK...i've now got fuel through, and it starts and runs (to a degree) but i can't get it to idle at all. I've wound the idle control screw in all the way but it's almost as if the idle control screw isn't long enough or something, as i can get it to idle if i manually pull the throttle lever about a cm towards me, but when i let it go back to the normal position it dies again.
I've checked that the throttle lever isn't bent. Everything's exactly the same as the one i took off, so i have no idea whats going on.
Any ideas?

It May Never End

grumble Son of Jim - Creator of Good

2,672 posts · joined Jun 2008 · 18 Nov 2010, 8:01 pm

#813254

Clean the idle jet (r/h side under the choke unit) and the bleed hole above it.Sometimes you can cheat a little by running the engine up to about 2500rpm and choking it,this allows it to suck any gunk out. Note be careful as the fan belt is close.