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Discussion Starter #1
Hey all,

I'm trying to figure out what the stock jetting might have been on my 02 Z440 snopro, and I'm not sure where to start...I'm thinking this might have been why she burned a hole in a piston.

The fella I bought it from stated that he dropped 2 sizes and called it good when he was racing...and left them that way even after he was done. Right now there is 260's in it. What I don't know is if he meant that there was originally 280's or if it would have been 270's, as jet sizes below 300 come in increments of 5.

Anybody able to help out? I don't know if I call a cat dealer if they can help out or not.

Thanks for any help you can offer.
 

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Registered
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79 Posts
Hey all,

I'm trying to figure out what the stock jetting might have been on my 02 Z440 snopro, and I'm not sure where to start...I'm thinking this might have been why she burned a hole in a piston.

The fella I bought it from stated that he dropped 2 sizes and called it good when he was racing...and left them that way even after he was done. Right now there is 260's in it. What I don't know is if he meant that there was originally 280's or if it would have been 270's, as jet sizes below 300 come in increments of 5.

Anybody able to help out? I don't know if I call a cat dealer if they can help out or not.

Thanks for any help you can offer.[/b]
2000 Z440 SnoPro - 330
2001 Z440 SnoPro - 320

Can't find a listing for an '02 Z440 SnoPro, just a straight Z440 - 280
 

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935 Posts
Hey all,

I'm trying to figure out what the stock jetting might have been on my 02 Z440 snopro, and I'm not sure where to start...I'm thinking this might have been why she burned a hole in a piston.

The fella I bought it from stated that he dropped 2 sizes and called it good when he was racing...and left them that way even after he was done. Right now there is 260's in it. What I don't know is if he meant that there was originally 280's or if it would have been 270's, as jet sizes below 300 come in increments of 5.

Anybody able to help out? I don't know if I call a cat dealer if they can help out or not.

Thanks for any help you can offer.[/b]

The stock main jet for your '02 was a 320.... :thumbsup:

Duane
 

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Discussion Starter #4
Thank you much...now I know why she burned down! :eek:hmy: hard to figure why it ran as long as it did with 260's. Guess I'll have to pick up some larger jets.

Thanks again!
 
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