I have a 1999 5.7 mercruiser tbi injected stingray motor number L093630. I recently had a problem with the engine backfiring and after replacing all ignition products I am now seeing a high idle. I ran it in nuetral for 5 mins and it never came down. any suggestions?<br />Thanks
I Need help on my 1999 stingray 5.7 Mercruiser through hull exhaust tbi injection motor #L093630. I can run all day WOT at 65 mph 5K rpm no problem. about 30 minutes after I slow down to 35 mph and cruise the lake the engine starts to pop and backfire and progresses worse until total shutdown...