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Old February 18th, 2020, 12:11 AM   #8
nocturncal
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Name: Cal
Location: San Francisco
Join Date: Jun 2017

Motorcycle(s): '09 Ninja 250R

Posts: 180
Quote:
Originally Posted by jkv45 View Post
That's not really a vacuum leak at that point. Being unseated from the boot to the airbox may certainly disrupt airflow into the carb and cause issues, but there's no vacuum on that side of the carb.

A vacuum leak can affect starting as well as running at any RPM.
Ah gotcha that makes sense. About a quarter of the boot was off of the airbox side of the carb. Funny thing is I had a have a flat spot when at 3/4 to full throttle at around 9k-11k and after the boot slipped off off the flat spot went away. Now that the boots fully seated the flat spot is back :-(
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