Tested my bike on the Dyno today.
The Mikuni TMR32 carbs were OK with pilot 25, main 132.5.
There is a strange very rich area @4500-6500 rpms.
The cam is a Megacycle 125-20 that has rather special data, the exhaust especially.
Measured at installation @0.04" lift (1.0mm)
IN - Lift 0,377" 30,5/58,5° Duration 269° Lobe center 104
EX - Lift 0,329" 76/22° Duration 278° Lobe center 117
Overlap 52.5°
I'll try another cam and make another Dyno and see if it change. I must remove the cam anyway when I have a raising cam stud in need of a Big-Sert in the head. I'm very curious to know what the cam does.
After that needles 1 step lower (leaner) if A/F is the same.
Exhaust, cam or carbs or a mix of all? Higher CR will not change,or?
Maybe someone here has had same "problem" and could make it better...?
Next cam to be tested: Action Fours SS-1 I used it most of the 80's.
Measured at last installation @0.04" lift (1.0mm)
IN - Lift 0.361" 21/53° Duration 254° Lobe center 106
EX - Lift 0.361" 54/21° Duration 256° Lobe center 106
Overlap 42°