left and right jets for a z425 carb????

mg8t7gn

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found the jets laying in the bottom of the bowl. looks like they are held in place using o-rings. wnt to the dealer to order new jets and they list a left jet and a right jet each with a different part number. which is the left and right jet location in the plastic tube where they sit? parts guy at deere dealer didn't know. both measure 0.045" opening and diameter and length measure the same. Thanks
Mark
 

Hammermechanicman

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mg8t7gn

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Thanks I ordered one i n case the jets do not show up. If i am looking towards the engine from the intake side, right is right- which would be the rear cylinder.
 

StarTech

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Your not going being able to measure the jet size; unless, you got the high precision measuring tools that machine shops have. Otherwise it going to hard to tell the difference of .03mm [0.01181 inch].

Using a 10x magnifier look for engraving of 113 [1.13mm] and 116 [1.16mm]. The 113 is the LH jet and the 116 is the RH jet. Be careful as to install in the mark L and R accordingly.
 

mg8t7gn

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I'll look at them with a magnifying glass for any numbers. I actually do have the tools to measure the jets and other carb setting, at least car carbs. Yes, it is mighty vintage.
 

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