99 sx 700 psi triple pipes.

zr7cat

zr7cat

New member
Joined
Jan 22, 2017
Messages
133
Age
52
Location
Flushing MI
My buddy just bought a 99 sx vmax 700 with PSI triple pipes on it, sled is in really good shape with with 4200 miles on it. First thing he did was pull the carbs to clean them, they were nasty! Check the main jets and the were 128, seems kind of a low main for having pipes on it, any thoughts?
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You should be running 142.5 s across the board. for running here in Michigan! with those pipes!
 
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Doesn't sound right, pipes usually require in the range of 147.5-150 main jets

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Yes with them pipes they went down to 142ish with mains. I dont have my notes infront of me . When them pipes are right they hall. Just ask yamigod
 
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I loved my SX with the PSI pipes---I would have to dig out my paper work to see what I was running for jets---I know it was what PSI recommended-- my redhead was spinning at 9200 RPM's for many years--sounded great....Tod
 
with the stock pilots you need to be at 3 turns out on the fuel screws, needles set at the 3rd pos on pto and 4th pos on the other two, mains should be 142.5 across the board!
 
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