exhaust popping

[Len Todd]

Did you try adjusting the Pilot Screws open a bit more? Or, ... up the mains one more size?

 

[Downlow350]

Did you try adjusting the Pilot Screws open a bit more? Or, ... up the mains one more size?

What size do you recommend? I didnt install mine, i had a guy by the name of Jeff Fisher do my mods. He runs a shop up here called Motorsports plus. He's kida the yamaha guru up here. I believe he said he up graded me one size up from factory.

 

[Len Todd]

The OEM mains are 135s. I would take one out and check to see what you really have in there. While you have the carbs off, give them a good cleaning and turn the Pilot Screws out 1/8th to 1/4 more, if they are set to two turns out already.

 

[Downlow350]

The OEM mains are 135s. I would take one out and check to see what you really have in there. While you have the carbs off, give them a good cleaning and turn the Pilot Screws out 1/8th to 1/4 more bit more, if they are set to two turns out already.

Ill give em a try! Thanks!