Posted by Steve@Advance on July 21, 2022 at 18:20:38 from (99.190.215.237):
In Reply to: A not running right posted by JD A/4020/4320 on July 21, 2022 at 17:32:13:
The black smoke and blackened plugs are evidence of flooding.
If the float is damaged it will flood. That will need to be replaced.
Flooding can also be caused by trash in the needle valve. If the tank is flaking rust or contaminated with trash it will continue to get in the needle valve and be an ongoing problem. An inline filter may help but may not work well with gravity flow systems. It can be too restrictive. The best solution is a good, clean tank, and original screens in place.
It is not really necessary to completely disassemble the entire carb. As long as you can access the internals and clear the passages, that is all that is usually necessary. A new float, and simple kit should be all it needs. Set the float to the specs which may come with the kit or can be found online. Be sure the tank is clean and screens in place.
Cleanliness of the incoming fuel is essential! Be sure to flush the fuel line before making the final connection.
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