S3 Jetting, am on safe side?

[aje]

Setup:
- 125, 120, 125 main jets
- 37,5 pilots
- needle in 4th groove.
Those should be same as "eurospecs".

Exchaust is now original, but I happen to have
a pair of Micron "silencers".
I`m also about to renew floats, needles, needle tubes, o-rings etc..
40 pilots are also waiting to get assembled.


What do gurus say, should I go for 127.5, 122.5, 127.5 or so with better flowing cans?
How easy is it get triple damaged if it goes lean?

Thank you very much, kiitos paljon

[aje]

I have now Microns in use and to carbs I putted 127,5/122,5/127,5 mains and 40 pilots.
Also renewed floats, needles etc.

Feels quite good, still need to sync carbs.

[roygrif]

Why would you run the center piston leaner than the outside ones?

[KitNYC]

Roy- someone else can explain the physics, I'll just say "because that's how Triumph does it."

Aje- Congrats, enjoy!

Cheers,
-Kit

[roygrif]

I always thought you would want the center piston a little richer to have some cooling affect to that particular cylinder?

[aje]

Eeeh.. maybe it has something to do with moon and stars?

All sources I have found tells thats the way it is.