The document discusses rebuild kits for carbs and provides tips for rebuilding carbs. It notes that more expensive rebuild kits from places like Napa contain specific parts for the carb model, while cheaper kits have more generic parts. It recommends labeling parts as they are removed and taking photos of linkages to aid reassembly. The main purpose of rebuilding is to thoroughly clean all passages. Using a muffin tray and labeling parts makes reassembly much easier. The stock jets are usually fine without needing to re-jet the carb.

1. Rebuild Kits
Many people ask what the difference is between the $16 AutoZone kit and the $40 Napa kit.
The answer is the cheap kit has generalized parts for all 22R carbs. The more expensive kit has
more parts for the specific carb you purchase it for. If the parts guy asks you for your OEM carb
number then you're getting the better/more expensive/more specific kit. If not, call somewhere
else. The carb number is found on a tab on the front most screw, on the driver's side, holding the
top of the carb to the base of the carb. If the screw is not there, most likely the carb was at one
point rebuilt.
The rebuild kit should come with instructions - my Napa kit did. This will include an exploded
diagram of every single part of the carb - there are a lot. All the kit contains is the four
diaphragms, gaskets and a new jet or two. The main purpose of the rebuild is to disassemble the
carb and soak everything in cleaner so that all the passages get cleaned out. This will make the
carb feel brand new once re-installed.
Since there are a lot of parts, I got a cheap muffin tray and whenever I took a part off, i put it in
a spot in the tray. I then labeled the part with the number it was listed as on the diagram. This
made reassembly 100 times easier. Taking a picture or two of the linkages will also help.
Diagrams
Federal/Canada:

2. California:

3. Exploded View:

5. Jets
1) Slow jet
2) Power valve jet
3) Metering needle guide
4) Secondary jet
5) Primary jet access plug
6) Primary jet
The stock jets are fine in just about all circumstances. I don't think there are any re-jet kits for
the aisin carbs, but I do know that a weber main jet screws into the aisin primary jet slot. The
general consencous I gather is that its not worth the trouble to re-jet these carbs.