Hi Randy,
Most of us have replaced the emulsion tubes with Factory Pro tubes, rather than the yamaha originals.
I did this a while back, and along with the tubes, I also bought
- float bowl o-rings
- airbox rubbers
- carb rubbers
The rubbers become hard and stiff over time, and don't seal properly. I'd actually wager a guess that this might be what's causing yours to run rough. My fuel range has drastically increased since we did all this work and performance is slightly improved too.
All the best,
Colin.
PS seach for "toob" and also "factory pro" in all forums and you'll find plenty to read on the subject
Most of us have replaced the emulsion tubes with Factory Pro tubes, rather than the yamaha originals.
I did this a while back, and along with the tubes, I also bought
- float bowl o-rings
- airbox rubbers
- carb rubbers
The rubbers become hard and stiff over time, and don't seal properly. I'd actually wager a guess that this might be what's causing yours to run rough. My fuel range has drastically increased since we did all this work and performance is slightly improved too.
All the best,
Colin.
PS seach for "toob" and also "factory pro" in all forums and you'll find plenty to read on the subject