Carby problems

**67Corona** · 03-04-2008, 08:17 PM

Hi
I have a RT40 Corona with a 2r and a aisan std carby. It has had a Gaskit kit put through it.
The problem I am having is that at light loads and about 2500rpm it feels like lean surge. I had this problem before the kit was put through it. The motor is standard.
Any one have any suggestions on how to fix the problem?

**MWP** · 03-04-2008, 08:27 PM

There isnt much you can adjust on a standard carb.
The only adjments they normally have are idle speed, and idle mixture both of which wont help you.

Are you sure its not ignition timing?
Ignition not advancing far enough can cause a leaning out feeling.
Check the vac advance (if it has it) and that the weights in the bottom of the dizzy can move freely.

**67Corona** · 03-04-2008, 08:31 PM

I don't appear to have any other issues but will check that again.
I didn't think there was much i could do.
Thanks

**TERRY MURPHY** · 27-09-2008, 08:40 PM

Originally Posted by 67Corona

Hi
I have a RT40 Corona with a 2r and a aisan std carby. It has had a Gaskit kit put through it.
The problem I am having is that at light loads and about 2500rpm it feels like lean surge. I had this problem before the kit was put through it. The motor is standard.
Any one have any suggestions on how to fix the problem?

Hi I am a ":retired" Motor mech spent many yrs onToyota ,if you slightly "ream " out the main jet [primary ] you should fix the problem ,using a jet drill of course worth a try ,Terry Murphy