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Carberator Discussion main jet adustment and seat of the pan

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Leckster

10-17-2007 13:19:25

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I have a cracked zenith L63 carb and was looking to replace it, I have the following questions.

I found 2 Zenith Carbs that have no numbers but look identical to the one I have.

1st - Should I buy a carb not knowing if it is an L63 and just by looks and manufacturer"s name?

2nd - 1 has an internal main jet which I guess is self controlled (there is just a plug on the end), and the other carb has a valve on the end and the description states it is a main jet adjustment. What is the difference???
Which one would be the better buy (preformance releated).

My instruction manual for the engine shows the non-adjustable one in the diagrams (main jet port has a plug in the end) but my existing engine has an adjustable main jet on it (valvle in the end).

Any help in deciding what to buy and the reasons why would be greatly appreciated

Wisconsin engine model # VH4D

Don

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Janicholson

10-17-2007 13:51:59

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Re: Carberator Discussion main jet adustment and seat of the in reply to Leckster, 10-17-2007 13:19:25

I do not know how to assure you about the match to the same on your engine, But I will say that it is omportant to run a Wisconsin Engine with the mixture set a tiny bit on the rich side. Too lean and they heat up and burn valves. I would go with the adjustable system, and use an analyser to set HC . JimN

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