575 sci acting up
#21
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Mark
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#22
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If you don't think it is the computer do you have any other ideas or checks I can do? I looked at my iac at idle and was afraid to adjust it after the book says 0-40 counts and Jim at Arizona speed said my 34 was fine. Any thoughts on a wiring problem? I've tried to visual check all the wiring for shorts or melted wires. I just thought since my alternator burnt up one day then the boat started running bad the next might have something to do with each other.
Thanks for the advice
Thanks for the advice
#24
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My 575's would cough upon advancing the throttle w/ IAC set high.
Re-check the manual. It is supposed to be set @ 15.
The only thing that may be different - is yours single or dual IAC? Mine are single.
Re-check the manual. It is supposed to be set @ 15.
The only thing that may be different - is yours single or dual IAC? Mine are single.
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BillR
'00 Scarab Sport 302 CC
'02 Cigarette Top Gun TS
'02 PQ 340
'00 PQ 280
'98 Scarab 22
'97 Baja Outlaw 20
'72 Checkmate
'65 Glastron
BillR
'00 Scarab Sport 302 CC
'02 Cigarette Top Gun TS
'02 PQ 340
'00 PQ 280
'98 Scarab 22
'97 Baja Outlaw 20
'72 Checkmate
'65 Glastron
#25
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That's good to know.
One of mine will occasionally sneeze and die when
advancing the throttle off idle....only does it when
cold though....I'll have to check that.
Did you get your alarm problem figured out ?
#27
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Then your IAC #'s will be different than mine. I am pretty certain your issue is fuel / air related.
I re-read the 1st post and it still sounds like IAC issues - especially the rev up & down.
I re-read the 1st post and it still sounds like IAC issues - especially the rev up & down.
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BillR
'00 Scarab Sport 302 CC
'02 Cigarette Top Gun TS
'02 PQ 340
'00 PQ 280
'98 Scarab 22
'97 Baja Outlaw 20
'72 Checkmate
'65 Glastron
BillR
'00 Scarab Sport 302 CC
'02 Cigarette Top Gun TS
'02 PQ 340
'00 PQ 280
'98 Scarab 22
'97 Baja Outlaw 20
'72 Checkmate
'65 Glastron
#28
I got the 575 package from Arizona speed and marine and they have worked great for the last year, great HP for the $