When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
throttle body sync is fine tuning of airflow when the throttle plates are closed. main symptom of bad sync is a poor idle. it only smooths out idle and initial off idle acceleration.
the f4i is extremely easy to sync compared to other sport bikes