air fuel ratio meter - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 12-30-2000, 10:36 AM
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air fuel ratio meter

has anybody ever used one of these to tune a carb, or just to see how their engine is running
the one that you weld a bung into your exhaust and it tell you lean or rich ( not trying to imply anybody is foolish)
just in case the way i am describing it is not correct
thanks for any input

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post #2 of (permalink) Old 12-30-2000, 11:49 AM
 
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Re: air fuel ratio meter

I use them all the time, and I think this is a GREAT way to tune a carb!!
If you get a second 'bung' and O2 sensor you can use a toggle switch to check both sides of the exhaust with the same control head.

This is not just a good way to tune a carb, it can also help you diagnose problems in the engine.
Several types now come with a 'Knock' sensor built into them so you get a two for one deal.

Edelbrock, MSD, Mr. Gasket, and a slew of others sell them.
The trick is to get one that uses a common, (read 'Replaceable') O2 sensor, so you can 'fix it' when something goes wrong, instead of having to buy another unit, or pay new unit price for a replacement O2 sensor.

If you get the kind that cleans it's self, make sure you have a large enough wire supplying the control head.

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