I saw what every body doning and what they were running.
I have a problem, I run at Sea level, and it is why to lean, if I go to a bigger main jet the temp down because it is to lean. Temp befor kit was 145 to 150 and never went higher. Now it is 160F and higher. I back fires when it hits 164F and rev high. Need to cool it down. I run silver Cv spring.
Dose yamaha dealers sell real main jets?
Thank You