500 EFI Doesn't Like to Idle/Hard Hot Restart
#1
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500 EFI Doesn't Like to Idle/Hard Hot Restart
Hey guys... I have a pair of 2001 500 EFIs with Boostpower induction package on them (tb's, filters, spacers, computers, etc). Motors have roughly 150 hours on them. Port motor is a champ, runs perfect, idles forever. Starboard motor likes to cut out at idle occasionaly and can be difficult to restart warm. If I cut the motors off to talk to someone it can take a few minutes of cranking for it to fire. Above idle they both run like champs, don't miss a beat and run identical on instrumentation. Any ideas? No alarms or horns. I'm betting it's some sensor, IAC, TPS, or something simple.
#5
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Join Date: Jul 2012
Location: Cedar Hill, MO Osage Beach, MO
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Hey guys... I have a pair of 2001 500 EFIs with Boostpower induction package on them (tb's, filters, spacers, computers, etc). Motors have roughly 150 hours on them. Port motor is a champ, runs perfect, idles forever. Starboard motor likes to cut out at idle occasionaly and can be difficult to restart warm. If I cut the motors off to talk to someone it can take a few minutes of cranking for it to fire. Above idle they both run like champs, don't miss a beat and run identical on instrumentation. Any ideas? No alarms or horns. I'm betting it's some sensor, IAC, TPS, or something simple.
#7
21 and 42 footers
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If it were the port motor on a pre-2002 500efi I'd swear it was vapor lock.....the starboard can still have that issue but the port fuel pump bwing sandwiched between the 2 engines is usually what causes vapor lock (obviously worse when hot out)