lean condition

[chrisrider63]

Last year i had a lean condition on my v-max where the plug was a real light brown, where they are usually a chocolate brown. I went to pull my carbs off this season and the side i think it was lean on the rubber intake boot was loose and i think maybe totally off last year. Would this cause a lean condtion??? What else could cause it?? It was bogging last year on the bottom end but it was warm out and I had a bad belt on, and the clutch had not been serviced from the year before.

[Vmax540]

"rubber intake boot was loose" = a cracked or loose carb flange have taken down a good # of cylinders.

[chrisrider63]

It isnt the rubber boot that connects the jug to the carbs, it was lose from the carbs to the airbox but the other one wasnt so i thought maybe it was sucking cold air through the right cylinder and leaning it out a bit but wasnt sure if thats enough to do it because guys run with no airbox often.

[tyler440]

yeah any change in airflow is going to change jetting... that would most likely make it lean, also that would explain a change for no reason