First Post... but been a long time guest and beneficiary of the forum...goes easy on me!
Problem - Starboard engine (5.0L Volvo Penta GXiE) stalls when I shift down into idle ONLY when coming off plane; does not matter if goes direct to idle or take 30 seconds. If I "goose" the throttle I can keep it from stalling and all is good; re-starts "hard" if it stalls like it's flooded. Initial starting is also more difficult than Port Engine as it requires giving throttle versus just starting.
History - boat was purchased as a repo with multiple engine issue with both the Port and Starboard. The Starboard was rebuilt due to having a cracked block due to poor Winterizing. Port had to be pulled for starting issues and backfiring; found that previous owner rebuilt as a 5.7L but did not re-flash the ECM (unfortunately found this out after I rebuilt Starboard...
). This is my second year with the boat and I have been running with Mercury Quickleen to clean the system from sitting for who knows how long.... Thanks for your feedback...