Question about 1983 Toyota Pickup

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1983 toyota pickup truck runs rough when the motor warms up

When the engine warms up it runs rough and black soot comes from exhaust.I tried to adjust the carb but it did not do anygood.I have rebuilt the carb adjusted the float right and it did not make any difference.It seems the engine is getting too much gas.

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It would appear that the Black smoke is unburnt fuel, meaning Spark or timing could also be out. Check you plug and point gaps. If you rebuilt the carby, float level is crucial also check the needle and set to ensure it is shutting off the fuel, if it is not shutting off, it will just flood the engine. Not sure what carby you have but I woud pull out the jets/power valve and replace them. Some carbys have a small ball bearing to control fuel, if that was lost that could be it. Pull up an exploded diagram of the carby and do it again. I know its time consuming, but it will be peace of mind. Good luck

Posted on Nov 19, 2009

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===
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