Question about 1983 Toyota Pickup

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Choke dont work

Dont like to start when its cold

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  • Toyota Master
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If too rich adjust choke leaner
if too lean, adjust choke righer.

from 1920 to about 1988 , usa, 70 years we did this.
no more. well we do, but most dont now.
i still have 1 twin carb motor cycle and one single carb VW 1968.
both restored.
also the chock heater must work and the choke spring not old.
the old bi-metal spring that is old become lazy,/crazy. kick it to the curb for best experiences.
if water heated choke the water actually must flow here.
if not, it will fail.
there are 3 common types.
electric, needs 12v.
water, needs 180F hot water actual flow.
and exhaust choke stove heater. (a small horror this, dont ask)
there are others, but would need carb name and p/n

Posted on Feb 19, 2014

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Rpms go up and when cold at idle


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Carburated vehicles ether have an automatic choke, or the very old ones, a hand choke. Yours has an automatic choke. The starting problem likely is a problem with the choke. The problem is almost certainly not the fuel pump.To set the automatic choke, push the accelerator to the floor, and RELEASE. Then start the engine just like you would a fuel injected vehicle. If this doesn't solve the problem, then the automatic choke needs to be repaired.

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Hi
This sounds like a cold start system fault, which is a number of things.
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  2. The idle needs to be set to the correct RPM of the engine when warm, if it is idling ok when it is warm then this wont be the problem.
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Most case's its the cold start system not operating correctly and if you have a good workshop to take it too they should pick this up quite quickly. Hope this helps, let me know how you get on.

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To start up a cold engine requires reach mixture (air-gas).In your case it seems like the choke is not working ,so cold engine cannot start.If it is an injection operated system then it must have a temperature sensor which suppose to turn the choking on when cold engine needs to get started.Either the sensor is faulty or the choke or between the two there is a faulty connection somewhere.

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http://imhdd.ms11.net/CHOKE/choke.html

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