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Discussion Starter #1
Does anyone know stock main jet's for a bone stock 01-02 Z?
99-300 mains-404161830 tubes-J8/8ADY01/41 needles 50 pilot
00-310 mains-same as above
01-?
02-?
 

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2002 Mach Z Sport and Tech plus

Pilot jet    50
Needle     J8-8ADY01-41
Piston valve   2.0
Needle seat 1.5
Main jet 290
 

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Discussion Starter #4
Wow! 2 jet size reduction, what's up with that? I figured that the 99 being the first year with end dump pipes was a little lean as this was probably why the 00 had 310's. Go figure!
I see all carb spec's are the same, so is there a difference in the electrical department ie; timing, mpem and so on? I know pipes, muffler and air box are identical, anything else?
I know some of you are saying check plug color and piston wash, I do, the plugs are a little rich @ even 10 degrees and I have yet to see piston wash on ANY Skidoo I have owned. Part of this is do to semi-synthetic oil that I have always run as some have said it is difficult to read and harder yet with full synthetic. Would I dare go to 300's? My repair manual say's it's jetted for 0 but if I go by 01-02 specs I would be good for 40 below!!
P.S. my mileage suck's @ 10 miles per but I was blaming it on the long track, maybe not so........
 

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Discussion Starter #5
ttt
 
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