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Hitachi Cold Starts


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Vee-hickle: '83 GL D/R Wagon, Hitachi carb, California Special.

 

On initial starup for the day (ambient temp usually around freezing), My automatic choke seems not to "take hold" until the car has warmed up a bit, usually after about a minute of my having to hold the throttle to prevent stalling. All subsequent starts are OK, the choke acts normally, going to fast idle until I kick it down or the choke kicks down automatically.

 

This is becoming kind of annoying, having to "baby-sit" after starting.

 

Cranking speed is OK.

 

What am I looking for to correct this?

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Thanks Skip, I'll look for that when it gets a little warmer in the garage. I have a FSM, the carb section is pretty extensive. I figure I'm in the right neighborhood if I look in the "automatic Choke" section?

 

GD, The carb is a recently purchased rebuilt unit. The probs you describe were what was wrong with my old carb..different symptoms than I'm having with the start issue now. Thanks.

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This is what I was told some years ago: before you start, tap gas once or twice, it closes the choke. I don't even know if it's completely true, but it works for me.

If I tap gas once, then start and don't mess with gas after the car started, it beautifully goes to high idle and then through its warming-up rootine. If I mess with gas, it goes to the regular idle and tries to die, so I have to keep gassing it up to keep it alive.

Does it make any sense to the pro's?

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I know I took off my air filter to see what was going on with the metal flap that's supposed to close for cold idle when you tap gas. If I remember correctly on the old (and now dead) carb it was sticking and wouldn't close... I think I'm right, but I have a tendency to forget. I only partially understand how it all works, so my knowledge easily leaves me :).

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