Darwin
Puppy
Hey guys
I need some advice.
I'm running a Xr650r with a keihin fcr41.
I dont have time to test all jet sizes.
Currently I'm running a NCVU needle on the middle clip, 45 slow jet, 72 pilot and a 182 main.
I am at the coast but intend to do some up country riding too.
Is the only way of inspecting 'mixture' by checking the plug or using a wideband O2 sensor.
I am really scared of leaning out too much and lifting the combustion temperatures too high.
Please advise guys
I need some advice.
I'm running a Xr650r with a keihin fcr41.
I dont have time to test all jet sizes.
Currently I'm running a NCVU needle on the middle clip, 45 slow jet, 72 pilot and a 182 main.
I am at the coast but intend to do some up country riding too.
Is the only way of inspecting 'mixture' by checking the plug or using a wideband O2 sensor.
I am really scared of leaning out too much and lifting the combustion temperatures too high.
Please advise guys
