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Re: [T3] FI to Carbs by PO not running right. UPDATE OPPS


<x-flowed>RichardG=> The 3,4 bank does not fire

OK, first I'd check to be sure he's getting fuel in the left carb. Looking down the venturi and giving the linkage a twist ought to do it. (This is basic, I know, but ...) If there's no fuel, put the old float valve back in (don't forget the thick washer!) and check again. Still nothing: check for a fuel-line blockage after the split. (All new fuel lines, right?)

You said he checked for spark, I'll infer that he thinks he's getting spark OK on 3/4. He's probably right, but I'll add that it can fool you if you don't check for spark *at the electrode*. This is not a likely problem for two cylinders.

Recheck that the spark plug lines are connected to the correct cylinders. The Type 3 distributor is set up at a different angle than the Type 1. (If he's using a Type 1 manual or Type 1 or 2 experience, it can trip him up.)

=> he can pump the carb, hear the sizzling and then sees smoke.

If he's seeing it inside the throat, it's probably just fuel vapor from a warm manifold. Normal.

=> While the progessive may not be a great idea, ...

It's worse than that -- it's bad for the motor, performs poorly and compromises the cooling system. Seriously, the best thing you can do with it is sell it to a baja guy.

This problem is very likely something simple.

Steven Ayres, Prescott AZ
'66 KG1600

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