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Discussion Starter #1
hello from overseas ;)

im from germany and need some help with my carburetor. hopefully my english is good enough :D

i got an old samurai and try to fix it.
i replaced a lot: timing belt, all ignition parts, filters, hoses, v belt, water pump and so on.
set to correct valve lash and checked the compression.

the engine runs very smoth and quiet but goes off when i hit the brake at each traffic light. annoying fault

so i overhaul the carburetor. bought a spare part set with new nosles and gaskets and cleand the hole carburetor.

now i need something like "standart setting"

some examples (Cold condition) :

how many turns?

2,5 turns? less or more? 5 turns?

stupid wax system. same position?


7,7mm between screw herad and plate (spring distance)

0,1mm between screw tip and fence/stop

wax piston: A=6,65mm / B=4,7mm

the mixture screw turns and idle screw turns are important. the other things arent important now.

hopefully somebody can help me with this crazy carburetor

90 Posts
The mixture screw of any carb should be dialed in based upon your elevation and a vacuum gauge. It can only be dialed in so much depending on what jetting you have and what your spark plugs look like after a "throttle chop." If you are getting a nice tan color on your plugs, you're all set. Trying turning the mixture screw to achieve the highest vacuum possible, then set your base timing to around 10-12d BTC, then adjust your idle to around 850rpm. This is the process I use for all my carb'd cars.
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