So you think Im lean a bit or?! Do I need to ride more than 1 hour ?! 130 main jet, 2 shims under needles.. pod filters, small porting, 0.06 milled head, 0.5 oversize, 4-1 stock exhaust with open slip on
Rh plug in your picture is def lean.
But the plug colour will only tell you about the mixture at the revs just before you cut the engine.
Google plug chop.
"A plug chop is a method of testing your motorcycle's air/fuel mixture by reading the spark plug color after cutting the engine at various throttle positions. This allows you to identify which jets you'll need to change or adjust."
Running at 60mph is half throttle at the most. Your mains are not what is restricting fuel at that point. I would raise the needles.
A full speed plug chop would be good to check mains, but I don't know how you do that on a 750.
On my 305 its doable.
Thank you guys.. so if I shim the needles again.. I guess it will be rich from 1500 to 3500rpm.. because in this range I feel the engine is near of being top rich.. now with the 1mm raise is pretty limit to that range?! What are you thinking?! When I put more throttle to be in the 4000 to 6000 rpm Its sounds and feel amazing!! I dont want to put it more for now.. just 100km to ride since the rebuilt!!!!
How many miles on them?! So I just called a Dyno shop. A good one. The guy say me ; sorry dont have any time to spend on these bike this summer.. cv34 carbs with pod are painfull to tune..
so I will try to make my Afr Gauge working!! It say 20 sometimes go to 10 afr ?!!