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Discussion Starter · #1 ·
I have a 04 yfz 450 with a full Yoshi pipe I bought it used and dealer said it had jet kit in it already but I don't think its the right jets cuz I almost have to change plugs every ride cuz I lose top end if its not jets what could cause this and if it is jets what size should I run... and what are the best bolt ons for power cuz I don't really have the money to build a motor any input is appreciated thanks
 

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Need some more info... What do the plugs look like when you pull them out? Does the quad run right before the plugs screw up? Does the quad idle? Are you using the right plugs? CR8E? Did you buy the quad from a dealer or just take it there?
 

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Discussion Starter · #4 ·
I didn't buy it new either I got it used and when I bought it it was blown up or starting to blow (didn't know at the time its my first racer) had it about 20 mins and I had to replace the piston and jug
 
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