Allen wrench size, adjusting choke 1984 2WD Pickup

[jbclem]

Trying to adjust/test the choke on my 2WD 1984 Pickup, there are three very small allen headed screws and they don't match any of the allen wrenches in my set. Can someone tell me what the correct size is so I can go out and buy it.

Thanks, John

[80toy]

is your kit metric? can you be more specific in terms of the screws?

[jbclem]

I have both metric and english sizes, but only the english one has sizes listed on the holder. I've found two small english allen sizes, one 5/64ths won't go into the hole, the next one smaller (in this kit) 1/16th (4/64ths) drops right in, too small. But because this is a metric car this doesn't help much. In fact I'm not even sure these are allen screws, the holes are small enough that it's a bit hard to make out the 6 rectangular sides. Since there are adjustment markings on the carb body and what looks like a center line on the choke I'm assuming it's adjustable. On the other hand, my Toyota factory manual makes no mention of adjusting the choke although the carburator section seems to cover everything else you can think of.

I'm hoping to find someone who has done this and can confirm that it's possible and also will know the exact metric size wrench.

John