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Old 05-25-2019, 11:46 PM   #21
Synchro909
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Join Date: Jun 2014
Location: Melbourne, Australia
Posts: 7,471
Default Re: Zenith 2 float level

I always appreciate it when someone who starts a thread gets back with what happened so here is what I did.
I stripped the carby down and cleaned ecverything out. There was a little crud in one passage (not the idling system) which I removed. I put it all back together carefully, taking time to set the height of the cap and main jets to the narrowest part of the venturi. I set the float to 1" above the surface of the top half as usual. That took 3 washers, one less than what was in it before I stripped it. I noticed when I took it apart that the idle mixture screw was only just cracked open off fully closed (less than 1/8th of a turn) so I set it at 1 1/2 turns open like I have always done.
Once it was back on the car, the motor was difficult to start ran terribly till I screwed the idle mixture screw back in to where it was. Sweet now! I took it out and did a couple of crash stops (I'm adjusting the brakes at the same time). It stalled about half the times. I'll maybe put the fourth washer back under the flaot valve but it's drivable enough as it is. If the occassional stall annoys me too much, I have a couple of other carbies to swap in.
I hope to have all the paperwork done to get this car on the road early next week, then the fun starts.
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