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I have Briggs & Stratton 11hp engine on mtd ride on mower.

I have just purchased Carb overhaul kit part number 497535. This kit has 4 nozzles in it. How do I identify which is correct one for my engine? I don't have the old one.
I cannot see any I.D markings on them so how can I also find out which is which. I have found out from a parts list that I have either nozzle 494876 or 495607 for high altitude use but as mentioned nozzles are un-marked.
My engine number is 2597070146-01 93030 330
 

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Sure would be nice if they were marked on the outside, wouldn't it.

If you have access to a set of really tiny drill bits, something like these,
20 pc. Micro Drill Bit Set

or a carb cleaning kit with different sized probes, like this sort of thing,
K&L Supply Carb Cleaner Kit 35-3498 : Amazon.com : Automotive

you could possibly determine which jet has the smaller hole, and that would be the high altitude jet. Or, maybe they're all the same in the kit they sent.
 
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